From: Marcin Haba <marcin.haba@bacula.pl>
Date: Sun, 4 Apr 2021 21:01:49 +0000 (+0200)
Subject: baculum: Implement autochanger management
X-Git-Tag: Release-11.0.3~27
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=217d27166f2e56a0f93ca16352baded79f178771;p=thirdparty%2Fbacula.git

baculum: Implement autochanger management
---

diff --git a/gui/baculum/examples/selinux/baculum-api.te b/gui/baculum/examples/selinux/baculum-api.te
index bf1c53e5f..e7ceecd0a 100644
--- a/gui/baculum/examples/selinux/baculum-api.te
+++ b/gui/baculum/examples/selinux/baculum-api.te
@@ -1,4 +1,4 @@
-module baculum-api 1.0.2;
+module baculum-api 1.0.3;
 
 require {
 	type init_t;
@@ -12,21 +12,30 @@ require {
 	type httpd_cache_t;
 	type bacula_etc_t;
 	type bacula_exec_t;
+	type bacula_spool_t;
 	type httpd_sys_rw_content_t;
+	type scsi_generic_device_t;
 	type shadow_t;
 	type systemd_systemctl_exec_t;
+	type systemd_logind_sessions_t;
+	type systemd_logind_t;
 	type systemd_unit_file_t;
 	type admin_home_t;
 	type usr_t;
 	type postfix_etc_t;
+	type initrc_var_run_t;
+	type tape_device_t;
 	class tcp_socket { name_bind name_connect };
-	class dir { search read write create };
-	class file { append read write create getattr open execute execute_no_trans };
+	class dir { search read write create add_name remove_name };
+	class file { append read write create getattr setattr open execute execute_no_trans ioctl unlink lock rename };
+	class chr_file { open read write ioctl };
+	class fifo_file { write };
 	class netlink_audit_socket { write nlmsg_relay create read };
 	class capability { audit_write sys_resource net_admin };
 	class service { start stop };
 	class unix_stream_socket { connectto };
 	class process { setrlimit };
+	class dbus { send_msg };
 }
 
 #============= httpd_t ==============
@@ -38,6 +47,9 @@ allow httpd_t hplip_port_t:tcp_socket name_connect;
 allow httpd_t bacula_etc_t:dir { read write search };
 allow httpd_t bacula_etc_t:file { getattr read write open };
 allow httpd_t bacula_exec_t:file { getattr read execute execute_no_trans open };
+allow httpd_t bacula_spool_t:dir { write add_name remove_name };
+allow httpd_t bacula_spool_t:file { getattr create open read write ioctl unlink };
+allow httpd_t scsi_generic_device_t:chr_file { open read write ioctl };
 allow httpd_t sudo_exec_t:file { read execute open };
 allow httpd_t httpd_cache_t:dir { read create };
 allow httpd_t httpd_cache_t:file { read write create };
@@ -48,8 +60,16 @@ allow httpd_t httpd_sys_rw_content_t:dir { read write };
 allow httpd_t httpd_sys_rw_content_t:file { create append };
 allow httpd_t shadow_t:file { open read getattr };
 allow httpd_t systemd_systemctl_exec_t:file { getattr open read execute execute_no_trans };
+allow httpd_t systemd_logind_sessions_t:fifo_file write;
+allow httpd_t systemd_logind_t:dbus send_msg;
 allow httpd_t systemd_unit_file_t:service { start stop };
 allow httpd_t init_t:unix_stream_socket connectto;
-allow httpd_t admin_home_t:file { getattr open read append write };
+allow httpd_t admin_home_t:dir { write add_name remove_name };
+allow httpd_t admin_home_t:file { getattr setattr create open read append write rename unlink };
 allow httpd_t usr_t:file write;
 allow httpd_t postfix_etc_t:file read;
+allow httpd_t initrc_var_run_t:file { open read lock };
+allow httpd_t tape_device_t:chr_file read;
+
+#============= systemd_logind_t ==============
+allow systemd_logind_t httpd_t:dbus send_msg;
diff --git a/gui/baculum/protected/API/Class/ChangerCommand.php b/gui/baculum/protected/API/Class/ChangerCommand.php
new file mode 100644
index 000000000..490f3e137
--- /dev/null
+++ b/gui/baculum/protected/API/Class/ChangerCommand.php
@@ -0,0 +1,366 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+Prado::using('Application.Common.Class.Errors');
+Prado::using('Application.API.Class.DeviceConfig');
+Prado::using('Application.API.Class.APIModule');
+
+/**
+ * Execute changer command module.
+ * Changer command should provide interface compatible with
+ * mtx-changer script provided with Bacula.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category Autochanger
+ * @package Baculum API
+ */
+class ChangerCommand extends APIModule {
+
+	const SUDO = 'sudo';
+
+	/**
+	 * Types to determine how changer command is executed (foreground, background...)
+	 */
+	const PTYPE_FG_CMD = 0;
+	const PTYPE_BG_CMD = 1;
+
+	/**
+	 * Output file prefix used to temporary store output from commands.
+	 */
+	const OUTPUT_FILE_PREFIX = 'output_';
+
+	/**
+	 * Pattern to changer command.
+	 */
+	const CHANGER_COMMAND_FG_PATTERN = '%s %s 2>&1';
+	const CHANGER_COMMAND_BG_PATTERN = '{ %s %s 1>%s 2>&1; echo "quit" >> %s ; } &';
+
+	/**
+	 * Supported parameters with short codes.
+	 * NOTE: order has meaning here.
+	 */
+	private $params = [
+		'%c' => 'changer-device',
+		'%o' => 'command',
+		'%S' => 'slot',
+		'%a' => 'archive-device',
+		'%d' => 'drive-index'
+	];
+
+	/**
+	 * Supported changer commands.
+	 */
+	private $commands = [
+		'load',
+		'unload',
+		'loaded',
+		'list',
+		'slots',
+		'listall',
+		'transfer'
+	];
+
+	/**
+	 * Stores device config.
+	 */
+	private $config;
+
+	public function init($param) {
+		$this->config = $this->getModule('device_config')->getConfig();
+	}
+
+	/**
+	 * Validate changer script command.
+	 * @param string $command script command
+	 * @return boolean true on validation success, otherwise false
+	 */
+	private function validateCommand($command) {
+		return in_array($command, $this->commands);
+	}
+
+	/**
+	 * Get sudo command.
+	 *
+	 * @param boolean $use_sudo sudo option state
+	 * @return string sudo command
+	 */
+	private function getSudo($use_sudo) {
+		$sudo = '';
+		if ($use_sudo === true) {
+			$sudo = self::SUDO;
+		}
+		return $sudo;
+	}
+
+	/**
+	 * Execute changer command.
+	 *
+	 * @param string $changer autochanger device name
+	 * @param string $command changer command (load, unload ...etc.)
+	 * @param string $device archive device name (autochanger drive name)
+	 * @param string $slot slot in slots magazine to use
+	 * @param string $slotdest destination slot in slots magazine (used with transfer command)
+	 * @param string $ptype command pattern type
+	 * @return StdClass executed command output and error code
+	 */
+	public function execChangerCommand($changer, $command, $device = null, $slot = null, $slotdest = null, $ptype = null) {
+		if (!$this->validateCommand($command)) {
+			$output = DeviceError::MSG_ERROR_DEVICE_INVALID_COMMAND;
+			$error = DeviceError::ERROR_DEVICE_INVALID_COMMAND;
+			$result = $this->prepareResult($output, $error);
+			return $result;
+		}
+		if (count($this->config) == 0)  {
+			$output = DeviceError::MSG_ERROR_DEVICE_DEVICE_CONFIG_DOES_NOT_EXIST;
+			$error = DeviceError::ERROR_DEVICE_DEVICE_CONFIG_DOES_NOT_EXIST;
+			$result = $this->prepareResult($output, $error);
+			return $result;
+		}
+		if (!key_exists($changer, $this->config) || $this->config[$changer]['type'] !== DeviceConfig::DEV_TYPE_AUTOCHANGER)  {
+			$output = DeviceError::MSG_ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST;
+			$error = DeviceError::ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST;
+			$result = $this->prepareResult($output, $error);
+			return $result;
+		}
+		if (is_string($device)) {
+			$drives = explode(',', $this->config[$changer]['drives']);
+			if (!in_array($device, $drives))  {
+				$output = DeviceError::MSG_ERROR_DEVICE_DRIVE_DOES_NOT_BELONG_TO_AUTOCHANGER;
+				$error = DeviceError::ERROR_DEVICE_DRIVE_DOES_NOT_BELONG_TO_AUTOCHANGER;
+				$result = $this->prepareResult($output, $error);
+				return $result;
+			}
+		}
+
+		if (is_string($device) && (!key_exists($device, $this->config) || $this->config[$device]['type'] !== DeviceConfig::DEV_TYPE_DEVICE))  {
+			$output = DeviceError::MSG_ERROR_DEVICE_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			$error = DeviceError::ERROR_DEVICE_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			$result = $this->prepareResult($output, $error);
+			return $result;
+		}
+		$changer_command = $this->config[$changer]['command'];
+		$changer_device = $this->config[$changer]['device'];
+		$archive_device = is_string($device) ? $this->config[$device]['device'] : '';
+		$drive_index = is_string($device) ? $this->config[$device]['index'] : '';
+		$use_sudo = ($this->config[$changer]['use_sudo'] == 1);
+
+		if ($command === 'transfer') {
+			// in transfer command in place archive device is given destination slot
+			$archive_device = $slotdest;
+		}
+
+		$command = $this->prepareChangerCommand(
+			$changer_command,
+			$changer_device,
+			$command,
+			$slot,
+			$archive_device,
+			$drive_index
+		);
+		$pattern = $this->getCmdPattern($ptype);
+		$cmd = $this->getCommand($pattern, $use_sudo, $command);
+		$result = $this->execCommand($cmd, $ptype);
+		if ($result->error !== 0) {
+			$emsg = PHP_EOL . ' Output:' . implode(PHP_EOL, $result->output);
+			$output = DeviceError::MSG_ERROR_WRONG_EXITCODE . $emsg;
+			$exitcode = DeviceError::ERROR_WRONG_EXITCODE;
+			$result = $this->prepareResult($output, $exitcode);
+		}
+		return $result;
+	}
+
+	/**
+	 * Prepare changer command to execute.
+	 *
+	 * @param string $changer_command full changer command
+	 * @param string $changer_device changer device name
+	 * @param string $command changer command (load, unload ...etc.)
+	 * @param string $slot slot in slots magazine to use
+	 * @param string $archive_device archive device name (autochanger drive name)
+	 * @param string $drive_index archive device index (autochanger drive index)
+	 * @return StdClass executed command output and error code
+	 */
+	private function prepareChangerCommand($changer_command, $changer_device, $command, $slot, $archive_device, $drive_index) {
+		$from = array_keys($this->params);
+		$to = [
+			'"' . $changer_device .'"',
+			'"' . $command .'"',
+			'"' . $slot .'"',
+			'"' . $archive_device .'"',
+			'"' . $drive_index .'"'
+		];
+		return str_replace($from, $to, $changer_command);
+	}
+
+	/**
+	 * Get changer command to execute.
+	 *
+	 * @param string $pattern changer command pattern (@see PTYPE_ constants)
+	 * @param boolean $use_sudo information about using sudo
+	 * @param string $bin changer command
+	 * @return array changer command (and output id if selected pattern to
+	 * move command to background)
+	 */
+	private function getCommand($pattern, $use_sudo, $bin) {
+		$command = array('cmd' => null, 'out_id' => null);
+		$misc = $this->getModule('misc');
+		$sudo = $this->getSudo($use_sudo);
+
+		if ($pattern === self::CHANGER_COMMAND_BG_PATTERN) {
+			$file = $this->prepareOutputFile();
+			$cmd = sprintf(
+				$pattern,
+				$sudo,
+				$bin,
+				$file,
+				$file
+			);
+			$command['cmd'] = $misc->escapeCharsToConsole($cmd);
+			$command['out_id'] = preg_replace('/^[\s\S]+\/' . self::OUTPUT_FILE_PREFIX . '/', '', $file);
+		} else {
+			$cmd = sprintf($pattern, $sudo, $bin);
+			$command['cmd'] = $misc->escapeCharsToConsole($cmd);
+			$command['out_id'] = '';
+		}
+		return $command;
+	}
+
+	/**
+	 * Create and get output file.
+	 * Used with background type command patterns (ex. PTYPE_BG_CMD)
+	 *
+	 * @return string|boolean new temporary filename (with path), or false on failure.
+	 */
+	private function prepareOutputFile() {
+		$dir = Prado::getPathOfNamespace('Application.API.Config');
+		$fname = tempnam($dir, self::OUTPUT_FILE_PREFIX);
+		return $fname;
+	}
+
+	/**
+	 * Read output file and return the output.
+	 * Used with background type command patterns (ex. PTYPE_BG_CMD)
+	 *
+	 * @param string $out_id command output identifier
+	 * @return array command output with one line per one array element
+	 */
+	public static function readOutputFile($out_id) {
+		$output = [];
+		$dir = Prado::getPathOfNamespace('Application.API.Config');
+		if (preg_match('/^[a-z0-9]+$/i', $out_id) === 1) {
+			$file = $dir . '/' . self::OUTPUT_FILE_PREFIX . $out_id;
+			if (file_exists($file)) {
+				$output = file($file);
+			}
+			$output_count = count($output);
+			$last = $output_count > 0 ? trim($output[$output_count-1]) : '';
+			if ($last === 'quit') {
+				// output is complete, so remove the file
+				unlink($file);
+			}
+		}
+		return $output;
+	}
+
+	/**
+	 * Execute changer command.
+	 *
+	 * @param string $bin command
+	 * @param string $ptype command pattern type
+	 * @return array result with output and error code
+	 */
+	public function execCommand($cmd, $ptype = null) {
+		exec($cmd['cmd'], $output, $exitcode);
+		$this->getModule('logging')->log(
+			$cmd['cmd'],
+			$output,
+			Logging::CATEGORY_EXECUTE,
+			__FILE__,
+			__LINE__
+		);
+		if ($ptype === self::PTYPE_BG_CMD) {
+			$output = [
+				'out_id' => $cmd['out_id']
+			];
+		}
+		return $this->prepareResult($output, $exitcode);
+	}
+
+	/**
+	 * Prepare changer command result.
+	 *
+	 * @param array $output output from command execution
+	 * @param integer $error command error code
+	 * @return array result with output and error code
+	 */
+	public function prepareResult($output, $error) {
+		$result = new StdClass;
+		$result->output = $output;
+		$result->error  = $error;
+		return $result;
+	}
+
+	/**
+	 * Get command pattern by ptype.
+	 *
+	 * @param string $ptype pattern type (@see PTYPE_ constants)
+	 * @return string command pattern
+	 */
+	private function getCmdPattern($ptype) {
+		$pattern = null;
+		switch ($ptype) {
+			case self::PTYPE_FG_CMD: $pattern = self::CHANGER_COMMAND_FG_PATTERN; break;
+			case self::PTYPE_BG_CMD: $pattern = self::CHANGER_COMMAND_BG_PATTERN; break;
+			default: $pattern = self::CHANGER_COMMAND_FG_PATTERN;
+		}
+		return $pattern;
+	}
+
+	/**
+	 * Check changer command parameters.
+	 * Used to test parameters.
+	 *
+	 * @param boolean $use_sudo information about using sudo
+	 * @param string $changer_command full changer command
+	 * @param string $changer_device changer device name
+	 * @param string $command changer command (load, unload ...etc.)
+	 * @param string $slot slot in slots magazine to use
+	 * @param string $archive_device archive device name (autochanger drive name)
+	 * @param string $drive_index archive device index (autochanger drive index)
+	 * @return StdClass executed command output and error code
+	 */
+	public function testChangerCommand($use_sudo, $changer_command, $changer_device, $command, $slot, $archive_device, $drive_index) {
+		$command = $this->prepareChangerCommand(
+			$changer_command,
+			$changer_device,
+			$command,
+			$slot,
+			$archive_device,
+			$drive_index
+		);
+		$pattern = $this->getCmdPattern(self::PTYPE_FG_CMD);
+		$cmd = $this->getCommand($pattern, $use_sudo, $command);
+		$result = $this->execCommand($cmd, self::PTYPE_FG_CMD);
+		return $result;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Class/DeviceConfig.php b/gui/baculum/protected/API/Class/DeviceConfig.php
new file mode 100644
index 000000000..cdc92be7c
--- /dev/null
+++ b/gui/baculum/protected/API/Class/DeviceConfig.php
@@ -0,0 +1,147 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+Prado::using('Application.Common.Class.ConfigFileModule');
+
+/**
+ * Manage devices configuration.
+ * Module is responsible for device config data.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category Device
+ * @package Baculum API
+ */
+class DeviceConfig extends ConfigFileModule {
+
+	/**
+	 * Supported device types
+	 */
+	const DEV_TYPE_DEVICE = 'device';
+	const DEV_TYPE_AUTOCHANGER = 'autochanger';
+
+	/**
+	 * Device file path patter.
+	 */
+	const DEVICE_PATH_PATTERN = '[a-zA-Z0-9:.\-_ ]+';
+
+	/**
+	 * Device config file path
+	 */
+	const CONFIG_FILE_PATH = 'Application.API.Config.devices';
+
+	/**
+	 * Device config file format
+	 */
+	const CONFIG_FILE_FORMAT = 'ini';
+
+	/**
+	 * Stores device config.
+	 */
+	private $config = null;
+
+	/**
+	 * These options are obligatory for device config.
+	 */
+	private $required_options = ['type', 'device'];
+
+	/**
+	 * Get (read) device config.
+	 *
+	 * @param string $section config section name
+	 * @return array config
+	 */
+	public function getConfig($section = null) {
+		$config = [];
+		if (is_null($this->config)) {
+			$this->config = $this->readConfig(self::CONFIG_FILE_PATH, self::CONFIG_FILE_FORMAT);
+		}
+		$is_valid = true;
+		if (!is_null($section)) {
+			$config = key_exists($section, $this->config) ? $this->config[$section] : [];
+			$is_valid = $this->validateConfig($section, $config);
+		} else {
+			foreach ($this->config as $section => $value) {
+				if ($this->validateConfig($section, $value) === false) {
+					$is_valid = false;
+					break;
+				}
+				$config[$section] = $value;
+			}
+		}
+		if ($is_valid === false) {
+			// no validity, no config
+			$config = [];
+		}
+		return $config;
+	}
+
+	/**
+	 * Set (save) device client config.
+	 *
+	 * @param array $config config
+	 * @return boolean true if config saved successfully, otherwise false
+	 */
+	public function setConfig(array $config) {
+		$result = $this->writeConfig($config, self::CONFIG_FILE_PATH, self::CONFIG_FILE_FORMAT);
+		if ($result === true) {
+			$this->config = null;
+		}
+		return $result;
+	}
+
+
+	/**
+	 * Validate device config.
+	 * Config validation should be used as early as config data is available.
+	 * Validation is done in read/write config methods.
+	 *
+	 * @param string $section section name
+	 * @param array $config config
+	 * @return boolean true if config valid, otherwise false
+	 */
+	private function validateConfig($section, array $config = []) {
+		$required_options = [$section => $this->required_options];
+		return $this->isConfigValid(
+			$required_options,
+			[$section => $config],
+			self::CONFIG_FILE_FORMAT,
+			self::CONFIG_FILE_PATH
+		);
+	}
+
+	public function getChangerDrives($changer) {
+		$drives = [];
+		$config = $this->getConfig($changer);
+		if (count($config) > 0) {
+			$ach_drives = explode(',', $config['drives']);
+			for ($i = 0; $i < count($ach_drives); $i++) {
+				$drive = $this->getConfig($ach_drives[$i]);
+				if (count($drive) > 0 && $drive['type'] === self::DEV_TYPE_DEVICE) {
+					$drive['name'] = $ach_drives[$i];
+					$drives[$drive['index']] = $drive;
+				}
+			}
+		}
+		return $drives;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Class/VolumeManager.php b/gui/baculum/protected/API/Class/VolumeManager.php
index 1ffc1393c..69dcf599e 100644
--- a/gui/baculum/protected/API/Class/VolumeManager.php
+++ b/gui/baculum/protected/API/Class/VolumeManager.php
@@ -3,7 +3,7 @@
  * Bacula(R) - The Network Backup Solution
  * Baculum   - Bacula web interface
  *
- * Copyright (C) 2013-2019 Kern Sibbald
+ * Copyright (C) 2013-2021 Kern Sibbald
  *
  * The main author of Baculum is Marcin Haba.
  * The original author of Bacula is Kern Sibbald, with contributions
@@ -175,5 +175,22 @@ LEFT JOIN Storage USING (StorageId)
 		}
 		return $volumes;
 	}
+
+	/**
+	 * Get volumes basing on specific criteria and return results as an array
+	 * with volume names as keys.
+	 *
+	 * @param array $criteria array with criterias (@see VolumeManager::getVolumes)
+	 * @param integer $limit_val limit results value
+	 * @return array volume list with volume names as keys
+	 */
+	public function getVolumesKeys($criteria = array(), $limit_val = 0) {
+		$volumes = [];
+		$vols = $this->getVolumes($criteria, $limit_val);
+		for ($i = 0; $i < count($vols); $i++) {
+			$volumes[$vols[$i]->volumename] = $vols[$i];
+		}
+		return $volumes;
+	}
 }
 ?>
diff --git a/gui/baculum/protected/API/Lang/en/messages.mo b/gui/baculum/protected/API/Lang/en/messages.mo
index 701f1bc3f..b3e138344 100644
Binary files a/gui/baculum/protected/API/Lang/en/messages.mo and b/gui/baculum/protected/API/Lang/en/messages.mo differ
diff --git a/gui/baculum/protected/API/Lang/en/messages.po b/gui/baculum/protected/API/Lang/en/messages.po
index 0ea4a2c07..05cbdd01c 100644
--- a/gui/baculum/protected/API/Lang/en/messages.po
+++ b/gui/baculum/protected/API/Lang/en/messages.po
@@ -565,3 +565,75 @@ msgstr "Copy to clipboard"
 
 msgid "Logout"
 msgstr "Logout"
+
+msgid "Devices"
+msgstr "Devices"
+
+msgid "Autochangers"
+msgstr "Autochangers"
+
+msgid "Add autochanger"
+msgstr "Add autochanger"
+
+msgid "Device"
+msgstr "Device"
+
+msgid "Name:"
+msgstr "Name:"
+
+msgid "Changer device:"
+msgstr "Changer device:"
+
+msgid "Changer command:"
+msgstr "Changer command:"
+
+msgid "Drive index:"
+msgstr "Drive index:"
+
+msgid "Drive index"
+msgstr "Drive index"
+
+msgid "Devices:"
+msgstr "Devices:"
+
+msgid "Add device"
+msgstr "Add device"
+
+msgid "Field cannot be empty."
+msgstr "Field cannot be empty."
+
+msgid "Invalid value."
+msgstr "Invalid value."
+
+msgid "Device with the given name already exists."
+msgstr "Device with the given name already exists."
+
+msgid "Edit device"
+msgstr "Edit device"
+
+msgid "Use CTRL + left-click to multiple item selection"
+msgstr "Use CTRL + left-click to multiple item selection"
+
+msgid "Device path:"
+msgstr "Device path:"
+
+msgid "Edit autochanger"
+msgstr "Edit autochanger"
+
+msgid "Autochanger"
+msgstr "Autochanger"
+
+msgid "Unable to delete device. Please unassign it from autochanger '%s' first."
+msgstr "Unable to delete device. Please unassign it from autochanger '%s' first."
+
+msgid "Autochanger with the given name already exists."
+msgstr "Autochanger with the given name already exists."
+
+msgid "Copy from Bacula SD config:"
+msgstr "Copy from Bacula SD config:"
+
+msgid "Changer command test:"
+msgstr "Changer command test:"
+
+msgid "Changer command error"
+msgstr "Changer command error"
diff --git a/gui/baculum/protected/API/Lang/pl/messages.mo b/gui/baculum/protected/API/Lang/pl/messages.mo
index b05c80b8f..f9414fcd3 100644
Binary files a/gui/baculum/protected/API/Lang/pl/messages.mo and b/gui/baculum/protected/API/Lang/pl/messages.mo differ
diff --git a/gui/baculum/protected/API/Lang/pl/messages.po b/gui/baculum/protected/API/Lang/pl/messages.po
index e06c1c7f0..d7259ab09 100644
--- a/gui/baculum/protected/API/Lang/pl/messages.po
+++ b/gui/baculum/protected/API/Lang/pl/messages.po
@@ -572,3 +572,74 @@ msgstr "Kopiuj do schowka"
 msgid "Logout"
 msgstr "Wyloguj"
 
+msgid "Devices"
+msgstr "Urządzenia"
+
+msgid "Autochangers"
+msgstr "Zmieniarki taśm"
+
+msgid "Add autochanger"
+msgstr "Dodaj zmieniarkę taśm"
+
+msgid "Device"
+msgstr "Urządzenie"
+
+msgid "Name:"
+msgstr "Nazwa:"
+
+msgid "Changer device:"
+msgstr "Urządzenie zmieniarki taśm:"
+
+msgid "Changer command:"
+msgstr "Komenda zmieniarki taśm:"
+
+msgid "Drive index:"
+msgstr "Indeks napędu:"
+
+msgid "Drive index"
+msgstr "Indeks napędu"
+
+msgid "Devices:"
+msgstr "Urządzenia:"
+
+msgid "Add device"
+msgstr "Dodaj urządzenie"
+
+msgid "Field cannot be empty."
+msgstr "Pole nie może być puste."
+
+msgid "Invalid value."
+msgstr "Niepoprawna wartość."
+
+msgid "Device with the given name already exists."
+msgstr "Urządzenie o podanej nazwie już istnieje."
+
+msgid "Edit device"
+msgstr "Edytuj urządzenie"
+
+msgid "Use CTRL + left-click to multiple item selection"
+msgstr "Aby zaznaczyć wiele elementów użyj CTRL + lewy-klik"
+
+msgid "Device path:"
+msgstr "Ścieżka urządzenia:"
+
+msgid "Edit autochanger"
+msgstr "Edytuj zmieniarkę taśm"
+
+msgid "Autochanger"
+msgstr "Zmieniarka taśm"
+
+msgid "Unable to delete device. Please unassign it from autochanger '%s' first."
+msgstr "Nie można usunąć urządzenia. Proszę napierw wypisać go ze zmieniarki taśm '%s'."
+
+msgid "Autochanger with the given name already exists."
+msgstr "Zmieniarka taśm o podanej nazwie już istnieje."
+
+msgid "Copy from Bacula SD config:"
+msgstr "Kopiuj z konfiguracji Bacula SD:"
+
+msgid "Changer command test:"
+msgstr "Test komendy zmieniarki:"
+
+msgid "Changer command error"
+msgstr "Błąd komendy zmieniarki"
diff --git a/gui/baculum/protected/API/Lang/pt/messages.mo b/gui/baculum/protected/API/Lang/pt/messages.mo
index 68ba56276..a64879fbe 100644
Binary files a/gui/baculum/protected/API/Lang/pt/messages.mo and b/gui/baculum/protected/API/Lang/pt/messages.mo differ
diff --git a/gui/baculum/protected/API/Lang/pt/messages.po b/gui/baculum/protected/API/Lang/pt/messages.po
index 5f895ba87..8cb00d291 100644
--- a/gui/baculum/protected/API/Lang/pt/messages.po
+++ b/gui/baculum/protected/API/Lang/pt/messages.po
@@ -572,3 +572,74 @@ msgstr "Copiar para área de transferência"
 msgid "Logout"
 msgstr "Sair"
 
+msgid "Devices"
+msgstr "Devices"
+
+msgid "Autochangers"
+msgstr "Autochangers"
+
+msgid "Add autochanger"
+msgstr "Add autochanger"
+
+msgid "Device"
+msgstr "Device"
+
+msgid "Name:"
+msgstr "Name:"
+
+msgid "Changer device:"
+msgstr "Changer device:"
+
+msgid "Changer command:"
+msgstr "Changer command:"
+
+msgid "Drive index:"
+msgstr "Drive index:"
+
+msgid "Drive index"
+msgstr "Drive index"
+
+msgid "Devices:"
+msgstr "Devices:"
+
+msgid "Add device"
+msgstr "Add device"
+
+msgid "Field cannot be empty."
+msgstr "Field cannot be empty."
+
+msgid "Invalid value."
+msgstr "Invalid value."
+
+msgid "Device with the given name already exists."
+msgstr "Device with the given name already exists."
+
+msgid "Edit device"
+msgstr "Edit device"
+
+msgid "Use CTRL + left-click to multiple item selection"
+msgstr "Use CTRL + left-click to multiple item selection"
+
+msgid "Device path:"
+msgstr "Device path:"
+
+msgid "Edit autochanger"
+msgstr "Edit autochanger"
+
+msgid "Autochanger"
+msgstr "Autochanger"
+
+msgid "Unable to delete device. Please unassign it from autochanger '%s' first."
+msgstr "Unable to delete device. Please unassign it from autochanger '%s' first."
+
+msgid "Autochanger with the given name already exists."
+msgstr "Autochanger with the given name already exists."
+
+msgid "Copy from Bacula SD config:"
+msgstr "Copy from Bacula SD config:"
+
+msgid "Changer command test:"
+msgstr "Changer command test:"
+
+msgid "Changer command error"
+msgstr "Changer command error"
diff --git a/gui/baculum/protected/API/Lang/ru/messages.mo b/gui/baculum/protected/API/Lang/ru/messages.mo
index a983830d7..97d51451d 100644
Binary files a/gui/baculum/protected/API/Lang/ru/messages.mo and b/gui/baculum/protected/API/Lang/ru/messages.mo differ
diff --git a/gui/baculum/protected/API/Lang/ru/messages.po b/gui/baculum/protected/API/Lang/ru/messages.po
index 26aae30f6..c61cf7dfa 100644
--- a/gui/baculum/protected/API/Lang/ru/messages.po
+++ b/gui/baculum/protected/API/Lang/ru/messages.po
@@ -572,3 +572,74 @@ msgstr "Копировать в буфер обмена"
 msgid "Logout"
 msgstr "Выйти"
 
+msgid "Devices"
+msgstr "Devices"
+
+msgid "Autochangers"
+msgstr "Autochangers"
+
+msgid "Add autochanger"
+msgstr "Add autochanger"
+
+msgid "Device"
+msgstr "Device"
+
+msgid "Name:"
+msgstr "Name:"
+
+msgid "Changer device:"
+msgstr "Changer device:"
+
+msgid "Changer command:"
+msgstr "Changer command:"
+
+msgid "Drive index:"
+msgstr "Drive index:"
+
+msgid "Drive index"
+msgstr "Drive index"
+
+msgid "Devices:"
+msgstr "Devices:"
+
+msgid "Add device"
+msgstr "Add device"
+
+msgid "Field cannot be empty."
+msgstr "Field cannot be empty."
+
+msgid "Invalid value."
+msgstr "Invalid value."
+
+msgid "Device with the given name already exists."
+msgstr "Device with the given name already exists."
+
+msgid "Edit device"
+msgstr "Edit device"
+
+msgid "Use CTRL + left-click to multiple item selection"
+msgstr "Use CTRL + left-click to multiple item selection"
+
+msgid "Device path:"
+msgstr "Device path:"
+
+msgid "Edit autochanger"
+msgstr "Edit autochanger"
+
+msgid "Autochanger"
+msgstr "Autochanger"
+
+msgid "Unable to delete device. Please unassign it from autochanger '%s' first."
+msgstr "Unable to delete device. Please unassign it from autochanger '%s' first."
+
+msgid "Autochanger with the given name already exists."
+msgstr "Autochanger with the given name already exists."
+
+msgid "Copy from Bacula SD config:"
+msgstr "Copy from Bacula SD config:"
+
+msgid "Changer command test:"
+msgstr "Changer command test:"
+
+msgid "Changer command error"
+msgstr "Changer command error"
diff --git a/gui/baculum/protected/API/Pages/API/ChangerDriveLoad.php b/gui/baculum/protected/API/Pages/API/ChangerDriveLoad.php
new file mode 100644
index 000000000..7c5e0731e
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/ChangerDriveLoad.php
@@ -0,0 +1,75 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+Prado::using('Application.API.Class.ChangerCommand');
+
+/**
+ * Load a given slot to autochanger drive.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class ChangerDriveLoad extends BaculumAPIServer {
+
+	public function get() {
+		$output = [];
+		$misc = $this->getModule('misc');
+		if ($this->Request->contains('out_id') && $misc->isValidAlphaNumeric($this->Request->itemAt('out_id'))) {
+			$out_id = $this->Request->itemAt('out_id');
+			$output = ChangerCommand::readOutputFile($out_id);
+		}
+		$this->output = $output;
+		$this->error = DeviceError::ERROR_NO_ERRORS;
+	}
+
+	public function set($id, $params) {
+		$misc = $this->getModule('misc');
+		$device_name = $this->Request->contains('device_name') && $misc->isValidName($this->Request['device_name']) ? $this->Request['device_name'] : null;
+		$drive = $this->Request->contains('drive') && $misc->isValidName($this->Request['drive']) ? $this->Request['drive'] : null;
+		$slot = $this->Request->contains('slot') && $misc->isValidInteger($this->Request['slot']) ? intval($this->Request['slot']) : null;
+
+		if (is_null($drive)) {
+			$this->output = DeviceError::MSG_ERROR_DEVICE_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			$this->error = DeviceError::ERROR_DEVICE_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			return;
+		}
+
+		if (is_null($slot)) {
+			$this->output = DeviceError::MSG_ERROR_DEVICE_WRONG_SLOT_NUMBER;
+			$this->error = DeviceError::ERROR_DEVICE_WRONG_SLOT_NUMBER;
+			return;
+		}
+
+		$result = $this->getModule('changer_command')->execChangerCommand(
+			$device_name,
+			'load',
+			$drive,
+			$slot,
+			null,
+			ChangerCommand::PTYPE_BG_CMD
+		);
+		$this->output = $result->output;
+		$this->error = $result->error;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/API/ChangerDriveLoaded.php b/gui/baculum/protected/API/Pages/API/ChangerDriveLoaded.php
new file mode 100644
index 000000000..25d476081
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/ChangerDriveLoaded.php
@@ -0,0 +1,58 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+/**
+ * Which slot is loaded in autochanger drive.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class ChangerDriveLoaded extends BaculumAPIServer {
+
+	public function get() {
+		$misc = $this->getModule('misc');
+		$device_name = $this->Request->contains('device_name') && $misc->isValidName($this->Request['device_name']) ? $this->Request['device_name'] : null;
+		$drive = $this->Request->contains('drive') && $misc->isValidName($this->Request['drive']) ? $this->Request['drive'] : null;
+
+		if (is_null($drive)) {
+			$this->output = ChangerCommandError::MSG_ERROR_CHANGER_COMMAND_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			$this->error = ChangerCommandError::ERROR_CHANGER_COMMAND_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			return;
+		}
+
+		$result = $this->getModule('changer_command')->execChangerCommand(
+			$device_name,
+			'loaded',
+			$drive
+		);
+
+		if ($result->error === 0 && count($result->output)) {
+			$this->output = ['slot' => intval($result->output[0])];
+		} else {
+			$this->output = $result->output;
+		}
+
+		$this->error = $result->error;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/API/ChangerDriveUnload.php b/gui/baculum/protected/API/Pages/API/ChangerDriveUnload.php
new file mode 100644
index 000000000..84e9749b6
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/ChangerDriveUnload.php
@@ -0,0 +1,75 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+Prado::using('Application.API.Class.ChangerCommand');
+
+/**
+ * Unload a given slot from autochanger drive.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class ChangerDriveUnload extends BaculumAPIServer {
+
+	public function get() {
+		$output = [];
+		$misc = $this->getModule('misc');
+		if ($this->Request->contains('out_id') && $misc->isValidAlphaNumeric($this->Request->itemAt('out_id'))) {
+			$out_id = $this->Request->itemAt('out_id');
+			$output = ChangerCommand::readOutputFile($out_id);
+		}
+		$this->output = $output;
+		$this->error = DeviceError::ERROR_NO_ERRORS;
+	}
+
+	public function set($id, $params) {
+		$misc = $this->getModule('misc');
+		$device_name = $this->Request->contains('device_name') && $misc->isValidName($this->Request['device_name']) ? $this->Request['device_name'] : null;
+		$drive = $this->Request->contains('drive') && $misc->isValidName($this->Request['drive']) ? $this->Request['drive'] : null;
+		$slot = $this->Request->contains('slot') && $misc->isValidInteger($this->Request['slot']) ? intval($this->Request['slot']) : null;
+
+		if (is_null($drive)) {
+			$this->output = ChangerCommandError::MSG_ERROR_CHANGER_COMMAND_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			$this->error = ChangerCommandError::ERROR_CHANGER_COMMAND_AUTOCHANGER_DRIVE_DOES_NOT_EXIST;
+			return;
+		}
+
+		if (is_null($slot)) {
+			$this->output = ChangerCommandError::MSG_ERROR_CHANGER_COMMAND_WRONG_SLOT_NUMBER;
+			$this->error = ChangerCommandError::ERROR_CHANGER_COMMAND_WRONG_SLOT_NUMBER;
+			return;
+		}
+
+		$result = $this->getModule('changer_command')->execChangerCommand(
+			$device_name,
+			'unload',
+			$drive,
+			$slot,
+			null,
+			ChangerCommand::PTYPE_BG_CMD
+		);
+		$this->output = $result->output;
+		$this->error = $result->error;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/API/ChangerList.php b/gui/baculum/protected/API/Pages/API/ChangerList.php
new file mode 100644
index 000000000..74c9b9193
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/ChangerList.php
@@ -0,0 +1,70 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+/**
+ * List autochanger volume names (requires barcode reader).
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class ChangerList extends BaculumAPIServer {
+
+	const LIST_PATTERN = '/^(?P<slot>\d+):(?P<volume>\S+)$/';
+
+	public function get() {
+		$misc = $this->getModule('misc');
+		$device_name = $this->Request->contains('device_name') && $misc->isValidName($this->Request['device_name']) ? $this->Request['device_name'] : null;
+
+		if (is_null($device_name)) {
+			$output = DeviceError::MSG_ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST;
+			$error = DeviceError::ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST;
+			return;
+		}
+
+		$result = $this->getModule('changer_command')->execChangerCommand(
+			$device_name,
+			'list'
+		);
+
+		if ($result->error === 0) {
+			$this->output = $this->parseList($result->output);
+		} else {
+			$this->output = $result->output;
+		}
+		$this->error = $result->error;
+	}
+
+	private function parseList($output) {
+		$list = [];
+		for ($i = 0; $i < count($output); $i++) {
+			if (preg_match(self::LIST_PATTERN, $output[$i], $match) == 1) {
+				$list[] = [
+					'slot' => $match['slot'],
+					'volume' => $match['volume']
+				];
+			}
+		}
+		return $list;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/API/ChangerListAll.php b/gui/baculum/protected/API/Pages/API/ChangerListAll.php
new file mode 100644
index 000000000..876aea3e7
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/ChangerListAll.php
@@ -0,0 +1,162 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+/**
+ * Autochanger list all slots.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class ChangerListAll extends BaculumAPIServer {
+
+	const LIST_ALL_DRIVE_PATTERN = '/^D:(?P<index>\d+):(?P<state>[EF]):?(?P<slot>\d+)?:?(?P<volume>\S+)?$/';
+	const LIST_ALL_SLOT_PATTERN = '/^S:(?P<slot>\d+):(?P<state>[EF]):?(?P<volume>\S+)?$/';
+	const LIST_ALL_IO_SLOT_PATTERN = '/^I:(?P<slot>\d+):(?P<state>[EF]):?(?P<volume>\S+)?$/';
+
+	public function get() {
+		$misc = $this->getModule('misc');
+		$device_name = $this->Request->contains('device_name') && $misc->isValidName($this->Request['device_name']) ? $this->Request['device_name'] : null;
+
+		if (is_null($device_name)) {
+			$output = DeviceError::MSG_ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST;
+			$error = DeviceError::ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST;
+			return;
+		}
+
+		$result = $this->getModule('changer_command')->execChangerCommand(
+			$device_name,
+			'listall'
+		);
+
+		if ($result->error === 0) {
+			$this->output = $this->parseListAll($device_name, $result->output);
+		} else {
+			$this->output = $result->output;
+		}
+		$this->error = $result->error;
+	}
+
+	private function parseListAll($device_name, $output) {
+		$list = ['drives' => [], 'slots' => [], 'ie_slots' => []];
+		$drives = $this->getModule('device_config')->getChangerDrives($device_name);
+		$volumes = $this->getModule('volume')->getVolumesKeys();
+		$get_volume_info  = function($volname) use ($volumes) {
+			$volume = [
+				'mediaid' => 0,
+				'volume' => '',
+				'mediatype' => '',
+				'pool' => '',
+				'lastwritten' => '',
+				'whenexpire' => '',
+				'volbytes' => '',
+				'volstatus' => '',
+				'slot' => ''
+			];
+			if (key_exists($volname, $volumes)) {
+				$volume['mediaid'] = intval($volumes[$volname]->mediaid);
+				$volume['mediatype'] = $volumes[$volname]->mediatype;
+				$volume['pool'] = $volumes[$volname]->pool;
+				$volume['lastwritten'] = $volumes[$volname]->lastwritten;
+				$volume['whenexpire'] = $volumes[$volname]->whenexpire;
+				$volume['volbytes'] = $volumes[$volname]->volbytes;
+				$volume['volstatus'] = $volumes[$volname]->volstatus;
+				$volume['slot'] = $volumes[$volname]->slot;
+			}
+			return $volume;
+		};
+		for ($i = 0; $i < count($output); $i++) {
+			if (preg_match(self::LIST_ALL_DRIVE_PATTERN, $output[$i], $match) == 1) {
+				$index = intval($match['index']);
+				if (!key_exists($index, $drives)) {
+					continue;
+				}
+				$drive = $drives[$index]['name'];
+				$device = $drives[$index]['device'];
+				$volume = '';
+				if (key_exists('volume', $match)) {
+					$volume = $match['volume'];
+				}
+				$volinfo = $get_volume_info($volume);
+				$list['drives'][] = [
+					'type' => 'drive',
+					'index' => $index,
+					'drive' => $drive,
+					'device' => $device,
+					'state' => $match['state'],
+					'slot_ach' => key_exists('slot', $match) ? intval($match['slot']) : '',
+					'mediaid' => $volinfo['mediaid'],
+					'volume' => $volume,
+					'mediatype' => $volinfo['mediatype'],
+					'pool' => $volinfo['pool'],
+					'lastwritten' => $volinfo['lastwritten'],
+					'whenexpire' => $volinfo['whenexpire'],
+					'volbytes' => $volinfo['volbytes'],
+					'volstatus' => $volinfo['volstatus'],
+					'slot_cat' => $volinfo['slot']
+				];
+			} elseif (preg_match(self::LIST_ALL_SLOT_PATTERN, $output[$i], $match) == 1) {
+				$volume = '';
+				if (key_exists('volume', $match)) {
+					$volume = $match['volume'];
+				}
+				$volinfo = $get_volume_info($volume);
+				$list['slots'][] = [
+					'type' => 'slot',
+					'slot_ach' => intval($match['slot']),
+					'state' => $match['state'],
+					'mediaid' => $volinfo['mediaid'],
+					'volume' => $volume,
+					'mediatype' => $volinfo['mediatype'],
+					'pool' => $volinfo['pool'],
+					'lastwritten' => $volinfo['lastwritten'],
+					'whenexpire' => $volinfo['whenexpire'],
+					'volbytes' => $volinfo['volbytes'],
+					'volstatus' => $volinfo['volstatus'],
+					'slot_cat' => $volinfo['slot']
+				];
+			} elseif (preg_match(self::LIST_ALL_IO_SLOT_PATTERN, $output[$i], $match) == 1) {
+				$volume = '';
+				if (key_exists('volume', $match)) {
+					$volume = $match['volume'];
+				}
+				$volinfo = $get_volume_info($volume);
+				$list['ie_slots'][] = [
+					'type' => 'ie_slot',
+					'slot_ach' => intval($match['slot']),
+					'state' => $match['state'],
+					'mediaid' => $volinfo['mediaid'],
+					'volume' => $volume,
+					'mediatype' => $volinfo['mediatype'],
+					'pool' => $volinfo['pool'],
+					'lastwritten' => $volinfo['lastwritten'],
+					'whenexpire' => $volinfo['whenexpire'],
+					'volbytes' => $volinfo['volbytes'],
+					'volstatus' => $volinfo['volstatus'],
+					'slot_cat' => $volinfo['slot']
+				];
+			}
+		}
+		return $list;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/API/ChangerSlots.php b/gui/baculum/protected/API/Pages/API/ChangerSlots.php
new file mode 100644
index 000000000..ba741d34f
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/ChangerSlots.php
@@ -0,0 +1,49 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+/**
+ * How many slots has autochanger.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class ChangerSlots extends BaculumAPIServer {
+
+	public function get() {
+		$misc = $this->getModule('misc');
+		$device_name = $this->Request->contains('device_name') && $misc->isValidName($this->Request['device_name']) ? $this->Request['device_name'] : null;
+
+		$result = $this->getModule('changer_command')->execChangerCommand(
+			$device_name,
+			'slots'
+		);
+
+		if ($result->error === 0 && count($result->output)) {
+			$this->output = ['slots' => intval($result->output[0])];
+		} else {
+			$this->output = $result->output;
+		}
+		$this->error = $result->error;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/API/ChangerSlotsTransfer.php b/gui/baculum/protected/API/Pages/API/ChangerSlotsTransfer.php
new file mode 100644
index 000000000..5c0d7c6ef
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/ChangerSlotsTransfer.php
@@ -0,0 +1,69 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+Prado::using('Application.API.Class.ChangerCommand');
+
+/**
+ * Transfer autochanger tape from slot to slot.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class ChangerSlotsTransfer extends BaculumAPIServer {
+
+	public function get() {
+		$output = [];
+		$misc = $this->getModule('misc');
+		if ($this->Request->contains('out_id') && $misc->isValidAlphaNumeric($this->Request->itemAt('out_id'))) {
+			$out_id = $this->Request->itemAt('out_id');
+			$output = ChangerCommand::readOutputFile($out_id);
+		}
+		$this->output = $output;
+		$this->error = DeviceError::ERROR_NO_ERRORS;
+	}
+
+	public function set($id, $params) {
+		$misc = $this->getModule('misc');
+		$device_name = $this->Request->contains('device_name') && $misc->isValidName($this->Request['device_name']) ? $this->Request['device_name'] : null;
+		$slotsrc = $this->Request->contains('slotsrc') && $misc->isValidInteger($this->Request['slotsrc']) ? intval($this->Request['slotsrc']) : null;
+		$slotdest = $this->Request->contains('slotdest') && $misc->isValidInteger($this->Request['slotdest']) ? intval($this->Request['slotdest']) : null;
+
+		if (is_null($slotsrc) || is_null($slotdest)) {
+			$this->output = DeviceError::MSG_ERROR_DEVICE_WRONG_SLOT_NUMBER;
+			$this->error = DeviceError::ERROR_DEVICE_WRONG_SLOT_NUMBER;
+			return;
+		}
+
+		$result = $this->getModule('changer_command')->execChangerCommand(
+			$device_name,
+			'transfer',
+			null,
+			$slotsrc,
+			$slotdest,
+			ChangerCommand::PTYPE_BG_CMD
+		);
+		$this->output = $result->output;
+		$this->error = $result->error;
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/API/StorageMount.php b/gui/baculum/protected/API/Pages/API/StorageMount.php
index 489eff055..8a04dc862 100644
--- a/gui/baculum/protected/API/Pages/API/StorageMount.php
+++ b/gui/baculum/protected/API/Pages/API/StorageMount.php
@@ -3,7 +3,7 @@
  * Bacula(R) - The Network Backup Solution
  * Baculum   - Bacula web interface
  *
- * Copyright (C) 2013-2019 Kern Sibbald
+ * Copyright (C) 2013-2021 Kern Sibbald
  *
  * The main author of Baculum is Marcin Haba.
  * The original author of Bacula is Kern Sibbald, with contributions
@@ -20,6 +20,8 @@
  * Bacula(R) is a registered trademark of Kern Sibbald.
  */
  
+Prado::using('Application.API.Class.Bconsole');
+
 /**
  * Mount storage command endpoint.
  *
@@ -28,28 +30,41 @@
  * @package Baculum API
  */
 class StorageMount extends BaculumAPIServer {
+
 	public function get() {
-		$storageid = $this->Request->contains('id') ? intval($this->Request['id']) : 0;
+		$output = [];
+		$misc = $this->getModule('misc');
+		if ($this->Request->contains('out_id') && $misc->isValidAlphaNumeric($this->Request->itemAt('out_id'))) {
+			$out_id = $this->Request->itemAt('out_id');
+			$output = Bconsole::readOutputFile($out_id);
+		}
+		$this->output = $output;
+		$this->error = StorageError::ERROR_NO_ERRORS;
+	}
+
+	public function set($id, $params) {
 		$drive = $this->Request->contains('drive') ? intval($this->Request['drive']) : 0;
 		$device = ($this->Request->contains('device') && $this->getModule('misc')->isValidName($this->Request['device'])) ? $this->Request['device'] : null;
 		$slot = $this->Request->contains('slot') ? intval($this->Request['slot']) : 0;
 
 		$result = $this->getModule('bconsole')->bconsoleCommand(
 			$this->director,
-			array('.storage')
+			['.storage']
 		);
 		if ($result->exitcode === 0) {
 			array_shift($result->output);
-			$storage = $this->getModule('storage')->getStorageById($storageid);
+			$storage = $this->getModule('storage')->getStorageById($id);
 			if (is_object($storage) && in_array($storage->name, $result->output)) {
 				$result = $this->getModule('bconsole')->bconsoleCommand(
 					$this->director,
-					array(
+					[
 						'mount',
 						'storage="' . $storage->name . '"',
 						(is_string($device) ? 'device="' . $device . '" drive=0' : 'drive=' . $drive),
 						'slot=' . $slot
-					)
+					],
+					Bconsole::PTYPE_BG_CMD,
+					true
 				);
 				$this->output = $result->output;
 				$this->error = $result->exitcode;
diff --git a/gui/baculum/protected/API/Pages/API/StorageMountV1.php b/gui/baculum/protected/API/Pages/API/StorageMountV1.php
new file mode 100644
index 000000000..f98f3fa26
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/StorageMountV1.php
@@ -0,0 +1,67 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+ 
+/**
+ * Mount storage command endpoint.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class StorageMountV1 extends BaculumAPIServer {
+	public function get() {
+		$storageid = $this->Request->contains('id') ? intval($this->Request['id']) : 0;
+		$drive = $this->Request->contains('drive') ? intval($this->Request['drive']) : 0;
+		$device = ($this->Request->contains('device') && $this->getModule('misc')->isValidName($this->Request['device'])) ? $this->Request['device'] : null;
+		$slot = $this->Request->contains('slot') ? intval($this->Request['slot']) : 0;
+
+		$result = $this->getModule('bconsole')->bconsoleCommand(
+			$this->director,
+			array('.storage')
+		);
+		if ($result->exitcode === 0) {
+			array_shift($result->output);
+			$storage = $this->getModule('storage')->getStorageById($storageid);
+			if (is_object($storage) && in_array($storage->name, $result->output)) {
+				$result = $this->getModule('bconsole')->bconsoleCommand(
+					$this->director,
+					array(
+						'mount',
+						'storage="' . $storage->name . '"',
+						(is_string($device) ? 'device="' . $device . '" drive=0' : 'drive=' . $drive),
+						'slot=' . $slot
+					)
+				);
+				$this->output = $result->output;
+				$this->error = $result->exitcode;
+			} else {
+				$this->output = StorageError::MSG_ERROR_STORAGE_DOES_NOT_EXISTS;
+				$this->error = StorageError::ERROR_STORAGE_DOES_NOT_EXISTS;
+			}
+		} else {
+			$this->output = $result->output;
+			$this->error = $result->exitcode;
+		}
+	}
+}
+
+?>
diff --git a/gui/baculum/protected/API/Pages/API/StorageRelease.php b/gui/baculum/protected/API/Pages/API/StorageRelease.php
index ce15cdbc8..965aa5f6d 100644
--- a/gui/baculum/protected/API/Pages/API/StorageRelease.php
+++ b/gui/baculum/protected/API/Pages/API/StorageRelease.php
@@ -3,7 +3,7 @@
  * Bacula(R) - The Network Backup Solution
  * Baculum   - Bacula web interface
  *
- * Copyright (C) 2013-2019 Kern Sibbald
+ * Copyright (C) 2013-2021 Kern Sibbald
  *
  * The main author of Baculum is Marcin Haba.
  * The original author of Bacula is Kern Sibbald, with contributions
@@ -20,6 +20,8 @@
  * Bacula(R) is a registered trademark of Kern Sibbald.
  */
  
+Prado::using('Application.API.Class.Bconsole');
+
 /**
  * Release storage command endpoint.
  *
@@ -28,27 +30,39 @@
  * @package Baculum API
  */
 class StorageRelease extends BaculumAPIServer {
+
 	public function get() {
-		$storageid = $this->Request->contains('id') ? intval($this->Request['id']) : 0;
+		$output = [];
+		$misc = $this->getModule('misc');
+		if ($this->Request->contains('out_id') && $misc->isValidAlphaNumeric($this->Request->itemAt('out_id'))) {
+			$out_id = $this->Request->itemAt('out_id');
+			$output = Bconsole::readOutputFile($out_id);
+		}
+		$this->output = $output;
+		$this->error = StorageError::ERROR_NO_ERRORS;
+	}
+
+	public function set($id, $params) {
 		$drive = $this->Request->contains('drive') ? intval($this->Request['drive']) : 0;
 		$device = $this->Request->contains('device') ? $this->Request['device'] : null;
 
 		$result = $this->getModule('bconsole')->bconsoleCommand(
 			$this->director,
-			array('.storage')
+			['.storage']
 		);
-
 		if ($result->exitcode === 0) {
 			array_shift($result->output);
-			$storage = $this->getModule('storage')->getStorageById($storageid);
+			$storage = $this->getModule('storage')->getStorageById($id);
 			if (is_object($storage) && in_array($storage->name, $result->output)) {
 				$result = $this->getModule('bconsole')->bconsoleCommand(
 					$this->director,
-					array(
+					[
 						'release',
 						'storage="' . $storage->name . '"',
 						(is_string($device) ? 'device="' . $device . '" drive=0 slot=0' : 'drive=' . $drive . ' slot=0')
-					)
+					],
+					Bconsole::PTYPE_BG_CMD,
+					true
 				);
 				$this->output = $result->output;
 				$this->error = $result->exitcode;
diff --git a/gui/baculum/protected/API/Pages/API/StorageReleaseV1.php b/gui/baculum/protected/API/Pages/API/StorageReleaseV1.php
new file mode 100644
index 000000000..e319f758a
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/StorageReleaseV1.php
@@ -0,0 +1,66 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+ 
+/**
+ * Release storage command endpoint.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class StorageReleaseV1 extends BaculumAPIServer {
+	public function get() {
+		$storageid = $this->Request->contains('id') ? intval($this->Request['id']) : 0;
+		$drive = $this->Request->contains('drive') ? intval($this->Request['drive']) : 0;
+		$device = $this->Request->contains('device') ? $this->Request['device'] : null;
+
+		$result = $this->getModule('bconsole')->bconsoleCommand(
+			$this->director,
+			array('.storage')
+		);
+
+		if ($result->exitcode === 0) {
+			array_shift($result->output);
+			$storage = $this->getModule('storage')->getStorageById($storageid);
+			if (is_object($storage) && in_array($storage->name, $result->output)) {
+				$result = $this->getModule('bconsole')->bconsoleCommand(
+					$this->director,
+					array(
+						'release',
+						'storage="' . $storage->name . '"',
+						(is_string($device) ? 'device="' . $device . '" drive=0 slot=0' : 'drive=' . $drive . ' slot=0')
+					)
+				);
+				$this->output = $result->output;
+				$this->error = $result->exitcode;
+			} else {
+				$this->output = StorageError::MSG_ERROR_STORAGE_DOES_NOT_EXISTS;
+				$this->error = StorageError::ERROR_STORAGE_DOES_NOT_EXISTS;
+			}
+		} else {
+			$this->output = $result->output;
+			$this->error = $result->exitcode;
+		}
+	}
+}
+
+?>
diff --git a/gui/baculum/protected/API/Pages/API/StorageUmount.php b/gui/baculum/protected/API/Pages/API/StorageUmount.php
index 657f1fbe8..e89f6a176 100644
--- a/gui/baculum/protected/API/Pages/API/StorageUmount.php
+++ b/gui/baculum/protected/API/Pages/API/StorageUmount.php
@@ -3,7 +3,7 @@
  * Bacula(R) - The Network Backup Solution
  * Baculum   - Bacula web interface
  *
- * Copyright (C) 2013-2019 Kern Sibbald
+ * Copyright (C) 2013-2021 Kern Sibbald
  *
  * The main author of Baculum is Marcin Haba.
  * The original author of Bacula is Kern Sibbald, with contributions
@@ -19,6 +19,8 @@
  *
  * Bacula(R) is a registered trademark of Kern Sibbald.
  */
+
+Prado::using('Application.API.Class.Bconsole');
  
 /**
  * Storage umount command endpoint.
@@ -28,26 +30,39 @@
  * @package Baculum API
  */
 class StorageUmount extends BaculumAPIServer {
+
 	public function get() {
-		$storageid = $this->Request->contains('id') ? intval($this->Request['id']) : 0;
+		$output = [];
+		$misc = $this->getModule('misc');
+		if ($this->Request->contains('out_id') && $misc->isValidAlphaNumeric($this->Request->itemAt('out_id'))) {
+			$out_id = $this->Request->itemAt('out_id');
+			$output = Bconsole::readOutputFile($out_id);
+		}
+		$this->output = $output;
+		$this->error = StorageError::ERROR_NO_ERRORS;
+	}
+
+	public function set($id, $params) {
 		$drive = $this->Request->contains('drive') ? intval($this->Request['drive']) : 0;
 		$device = $this->Request->contains('device') ? $this->Request['device'] : null;
 
 		$result = $this->getModule('bconsole')->bconsoleCommand(
 			$this->director,
-			array('.storage')
+			['.storage']
 		);
 		if ($result->exitcode === 0) {
 			array_shift($result->output);
-			$storage = $this->getModule('storage')->getStorageById($storageid);
+			$storage = $this->getModule('storage')->getStorageById($id);
 			if (is_object($storage) && in_array($storage->name, $result->output)) {
 				$result = $this->getModule('bconsole')->bconsoleCommand(
 					$this->director,
-					array(
+					[
 						'umount',
 						'storage="' . $storage->name . '"',
 						(is_string($device) ? 'device="' . $device . '" slot=0 drive=0' : 'drive=' . $drive . ' slot=0')
-					)
+					],
+					Bconsole::PTYPE_BG_CMD,
+					true
 				);
 				$this->output = $result->output;
 				$this->error = $result->exitcode;
diff --git a/gui/baculum/protected/API/Pages/API/StorageUmountV1.php b/gui/baculum/protected/API/Pages/API/StorageUmountV1.php
new file mode 100644
index 000000000..705094b64
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/API/StorageUmountV1.php
@@ -0,0 +1,65 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+ 
+/**
+ * Storage umount command endpoint.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category API
+ * @package Baculum API
+ */
+class StorageUmountV1 extends BaculumAPIServer {
+	public function get() {
+		$storageid = $this->Request->contains('id') ? intval($this->Request['id']) : 0;
+		$drive = $this->Request->contains('drive') ? intval($this->Request['drive']) : 0;
+		$device = $this->Request->contains('device') ? $this->Request['device'] : null;
+
+		$result = $this->getModule('bconsole')->bconsoleCommand(
+			$this->director,
+			array('.storage')
+		);
+		if ($result->exitcode === 0) {
+			array_shift($result->output);
+			$storage = $this->getModule('storage')->getStorageById($storageid);
+			if (is_object($storage) && in_array($storage->name, $result->output)) {
+				$result = $this->getModule('bconsole')->bconsoleCommand(
+					$this->director,
+					array(
+						'umount',
+						'storage="' . $storage->name . '"',
+						(is_string($device) ? 'device="' . $device . '" slot=0 drive=0' : 'drive=' . $drive . ' slot=0')
+					)
+				);
+				$this->output = $result->output;
+				$this->error = $result->exitcode;
+			} else {
+				$this->output = StorageError::MSG_ERROR_STORAGE_DOES_NOT_EXISTS;
+				$this->error = StorageError::ERROR_STORAGE_DOES_NOT_EXISTS;
+			}
+		} else {
+			$this->output = $result->output;
+			$this->error = $result->exitcode;
+		}
+	}
+}
+
+?>
diff --git a/gui/baculum/protected/API/Pages/API/VolumeLabel.php b/gui/baculum/protected/API/Pages/API/VolumeLabel.php
index 5a943057b..988f47f8a 100644
--- a/gui/baculum/protected/API/Pages/API/VolumeLabel.php
+++ b/gui/baculum/protected/API/Pages/API/VolumeLabel.php
@@ -49,14 +49,14 @@ class VolumeLabel extends BaculumAPIServer {
 		$misc = $this->getModule('misc');
 
 		if (!$misc->isValidName($volume)) {
-			$this->output = VolumeError::ERROR_INVALID_VOLUME;
-			$this->error = VolumeError::MSG_ERROR_INVALID_VOLUME;
+			$this->output = VolumeError::MSG_ERROR_INVALID_VOLUME;
+			$this->error = VolumeError::ERROR_INVALID_VOLUME;
 			return;
 		}
 
 		if (!$misc->isValidInteger($slot)) {
-			$this->output = VolumeError::ERROR_INVALID_SLOT;
-			$this->error = VolumeError::MSG_ERROR_INVALID_SLOT;
+			$this->output = VolumeError::MSG_ERROR_INVALID_SLOT;
+			$this->error = VolumeError::ERROR_INVALID_SLOT;
 			return;
 		}
 
diff --git a/gui/baculum/protected/API/Pages/API/config.xml b/gui/baculum/protected/API/Pages/API/config.xml
index 6381b73f5..568c92f61 100644
--- a/gui/baculum/protected/API/Pages/API/config.xml
+++ b/gui/baculum/protected/API/Pages/API/config.xml
@@ -33,6 +33,7 @@
 		<module id="api_config" class="Application.API.Class.APIConfig" />
 		<module id="bacula_config" class="Application.API.Class.BaculaConfig" />
 		<module id="bacula_setting" class="Application.API.Class.BaculaSetting" />
+		<module id="device_config" class="Application.API.Class.DeviceConfig" />
 		<!-- logging modules -->
 		<module id="log" class="System.Util.TLogRouter">
 			<route class="TFileLogRoute"  Categories="Execute, External, Application, General, Security" LogPath="Application.API.Logs" LogFile="baculum-api.log" MaxFileSize="1000" MaxLogFiles="5" />
@@ -46,5 +47,7 @@
 		<!-- bconsole command modules -->
 		<module id="ls" class="Application.API.Class.Ls" />
 		<module id="list" class="Application.API.Class.BList" />
+		<!-- changer command modules -->
+		<module id="changer_command" class="Application.API.Class.ChangerCommand" />
 	</modules>
 </configuration>
diff --git a/gui/baculum/protected/API/Pages/API/endpoints.xml b/gui/baculum/protected/API/Pages/API/endpoints.xml
index bccbc1e19..5f3bbc433 100644
--- a/gui/baculum/protected/API/Pages/API/endpoints.xml
+++ b/gui/baculum/protected/API/Pages/API/endpoints.xml
@@ -34,6 +34,14 @@
 	<url ServiceParameter="StorageMount" pattern="api/v2/storages/{id}/mount/" parameters.id="\d+" />
 	<url ServiceParameter="StorageUmount" pattern="api/v2/storages/{id}/umount/" parameters.id="\d+" />
 	<url ServiceParameter="StorageRelease" pattern="api/v2/storages/{id}/release/" parameters.id="\d+" />
+	<!-- devices endpoints -->
+	<url ServiceParameter="ChangerDriveLoad" pattern="api/v2/devices/{device_name}/load/" parameters.device_name="[a-zA-Z0-9:.\-_ ]+" />
+	<url ServiceParameter="ChangerDriveUnload" pattern="api/v2/devices/{device_name}/unload/" parameters.device_name="[a-zA-Z0-9:.\-_ ]+" />
+	<url ServiceParameter="ChangerDriveLoaded" pattern="api/v2/devices/{device_name}/loaded/" parameters.device_name="[a-zA-Z0-9:.\-_ ]+" />
+	<url ServiceParameter="ChangerList" pattern="api/v2/devices/{device_name}/list/" parameters.device_name="[a-zA-Z0-9:.\-_ ]+" />
+	<url ServiceParameter="ChangerListAll" pattern="api/v2/devices/{device_name}/listall/" parameters.device_name="[a-zA-Z0-9:.\-_ ]+" />
+	<url ServiceParameter="ChangerSlots" pattern="api/v2/devices/{device_name}/slots/" parameters.device_name="[a-zA-Z0-9:.\-_ ]+" />
+	<url ServiceParameter="ChangerSlotsTransfer" pattern="api/v2/devices/{device_name}/transfer/" parameters.device_name="[a-zA-Z0-9:.\-_ ]+" />
 	<!-- volumes (media) endpoints-->
 	<url ServiceParameter="Volumes" pattern="api/v2/volumes/" />
 	<url ServiceParameter="Volume" pattern="api/v2/volumes/{id}/" parameters.id="\d+" />
@@ -126,9 +134,9 @@
 	<url ServiceParameter="StoragesShow" pattern="api/v1/storages/show/" />
 	<url ServiceParameter="StorageShow" pattern="api/v1/storages/{id}/show/" parameters.id="\d+" />
 	<url ServiceParameter="StorageStatus" pattern="api/v1/storages/{id}/status/" parameters.id="\d+" />
-	<url ServiceParameter="StorageMount" pattern="api/v1/storages/{id}/mount/" parameters.id="\d+" />
-	<url ServiceParameter="StorageUmount" pattern="api/v1/storages/{id}/umount/" parameters.id="\d+" />
-	<url ServiceParameter="StorageRelease" pattern="api/v1/storages/{id}/release/" parameters.id="\d+" />
+	<url ServiceParameter="StorageMountV1" pattern="api/v1/storages/{id}/mount/" parameters.id="\d+" />
+	<url ServiceParameter="StorageUmountV1" pattern="api/v1/storages/{id}/umount/" parameters.id="\d+" />
+	<url ServiceParameter="StorageReleaseV1" pattern="api/v1/storages/{id}/release/" parameters.id="\d+" />
 	<!-- volumes (media) endpoints-->
 	<url ServiceParameter="Volumes" pattern="api/v1/volumes/" />
 	<url ServiceParameter="Volume" pattern="api/v1/volumes/{id}/" parameters.id="\d+" />
diff --git a/gui/baculum/protected/API/Pages/Panel/APIDevices.page b/gui/baculum/protected/API/Pages/Panel/APIDevices.page
new file mode 100644
index 000000000..eb1d4e3a2
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/Panel/APIDevices.page
@@ -0,0 +1,866 @@
+<%@ MasterClass="Application.API.Layouts.Main" Theme="Baculum-v2"%>
+<com:TContent ID="Main">
+	<header class="w3-container w3-block">
+		<h5>
+			<i class="fas fa-user-shield"></i> <%[ Devices ]%>
+		</h5>
+	</header>
+	<div class="w3-bar w3-green w3-margin-bottom">
+		<button type="button" id="btn_devices_autochanger" class="w3-bar-item w3-button tab_btn w3-grey" onclick="W3Tabs.open(this.id, 'devices_autochanger');"><%[ Autochangers ]%></button>
+		<button type="button" id="btn_devices_device" class="w3-bar-item w3-button tab_btn" onclick="W3Tabs.open(this.id, 'devices_device'); oDeviceList.table.responsive.recalc();"><%[ Devices ]%></button>
+	</div>
+	<div class="w3-container tab_item" id="devices_autochanger">
+		<a href="javascript:void(0)" class="w3-button w3-green w3-margin-bottom" onclick="oAPIAutochangers.add_autochanger();">
+			<i class="fas fa-plus"></i> &nbsp;<%[ Add autochanger ]%>
+		</a>
+		<table id="autochanger_list" class="w3-table w3-striped w3-hoverable w3-white w3-margin-bottom" style="width: 100%">
+			<thead>
+				<tr>
+					<th></th>
+					<th><%[ Name ]%></th>
+					<th><%[ Device ]%></th>
+					<th><%[ Actions ]%></th>
+				</tr>
+			</thead>
+			<tbody id="autochanger_list_body"></tbody>
+			<tfoot>
+				<tr>
+					<th></th>
+					<th><%[ Name ]%></th>
+					<th><%[ Device ]%></th>
+					<th><%[ Actions ]%></th>
+				</tr>
+			</tfoot>
+		</table>
+	</div>
+	<com:Application.API.Portlets.SudoConfig ID="SudoConfig" />
+<script>
+var oAutochangerList = {
+	ids: {
+		autochanger_list: 'autochanger_list',
+		autochanger_list_body: 'autochanger_list_body'
+	},
+	table: null,
+	data: [],
+	init: function() {
+		if (!this.table) {
+			this.set_table();
+		} else {
+			var page = this.table.page();
+			this.table.clear().rows.add(this.data).draw();
+			this.table.page(page).draw(false);
+		}
+	},
+	set_table: function() {
+		this.table = $('#' + this.ids.autochanger_list).DataTable({
+			data: this.data,
+			deferRender: true,
+			dom: 'lBfrtip',
+			stateSave: true,
+			buttons: [
+				'copy', 'csv', 'colvis'
+			],
+			columns: [
+				{
+					className: 'details-control',
+					orderable: false,
+					data: null,
+					defaultContent: '<button type="button" class="w3-button w3-blue"><i class="fa fa-angle-down"></i></button>'
+				},
+				{data: 'name'},
+				{data: 'device'},
+				{
+					data: 'name',
+					render: function(data, type, row) {
+						var span = document.createElement('SPAN');
+						span.className = 'w3-right';
+
+						var chpwd_btn = document.createElement('BUTTON');
+						chpwd_btn.className = 'w3-button w3-green';
+						chpwd_btn.type = 'button';
+						var i = document.createElement('I');
+						i.className = 'fas fa-edit';
+						var label = document.createTextNode(' <%[ Edit ]%>');
+						chpwd_btn.appendChild(i);
+						chpwd_btn.innerHTML += '&nbsp';
+						chpwd_btn.appendChild(label);
+						chpwd_btn.setAttribute('onclick', 'oAPIAutochangers.edit_autochanger("' + data + '")');
+
+						var del_btn = document.createElement('BUTTON');
+						del_btn.className = 'w3-button w3-red w3-margin-left';
+						del_btn.type = 'button';
+						var i = document.createElement('I');
+						i.className = 'fas fa-trash-alt';
+						var label = document.createTextNode(' <%[ Delete ]%>');
+						del_btn.appendChild(i);
+						del_btn.innerHTML += '&nbsp';
+						del_btn.appendChild(label);
+						del_btn.setAttribute('onclick', 'oAPIAutochangers.delete_autochanger("' + data + '")');
+
+						span.appendChild(chpwd_btn);
+						span.appendChild(del_btn);
+
+						return span.outerHTML;
+					}
+				}
+			],
+			responsive: {
+				details: {
+					type: 'column'
+				}
+			},
+			columnDefs: [{
+				className: 'control',
+				orderable: false,
+				targets: 0
+			},
+			{
+				className: "dt-center",
+				targets: [ 3 ]
+			}],
+			order: [1, 'asc'],
+		});
+	}
+};
+var bin_fields = {
+	changer_command: [
+		'<%=$this->ChangerCommand->ClientID%>'
+	]
+};
+var bin_opts = {
+	changer_command: {
+		base_path: true
+	}
+};
+oSudoConfig.set_bin_fields(bin_fields);
+oSudoConfig.set_bin_opts(bin_opts);
+</script>
+	<div id="autochanger_window" class="w3-modal">
+		<div class="w3-modal-content w3-animate-top w3-card-4">
+			<header class="w3-container w3-teal">
+				<span onclick="document.getElementById('autochanger_window').style.display = 'none';" class="w3-button w3-display-topright">&times;</span>
+				<h2 id="autochanger_window_title_add" style="display: none"><%[ Add autochanger ]%></h2>
+				<h2 id="autochanger_window_title_edit" style="display: none"><%[ Edit autochanger ]%></h2>
+			</header>
+			<div class="w3-container w3-margin-left w3-margin-right w3-text-teal">
+				<span id="autochanger_exists" class="error" style="display: none"><ul><li><%[ Autochanger with the given name already exists. ]%></li></ul></span>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><label for="autochanger_config"><%[ Copy from Bacula SD config: ]%></label></div>
+					<div class="w3-half">
+						<select id="autochanger_config" class="w3-select w3-border"></select>
+					</div>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><com:TLabel ForControl="AutochangerName" Text="<%[ Name: ]%>" /></div>
+					<div class="w3-half">
+						<com:TActiveTextBox
+							ID="AutochangerName"
+							AutoPostBack="false"
+							MaxLength="100"
+							CssClass="w3-input w3-border"
+							Attributes.placeholder="My Autochanger 123"
+						/>
+						<com:TRequiredFieldValidator
+							ValidationGroup="AutchangerGroup"
+							ControlToValidate="AutochangerName"
+							ErrorMessage="<%[ Field cannot be empty. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+						<com:TRegularExpressionValidator
+							ValidationGroup="AutchangerGroup"
+							RegularExpression="<%=DeviceConfig::DEVICE_PATH_PATTERN%>"
+							ControlToValidate="AutochangerName"
+							ErrorMessage="<%[ Invalid value. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+					</div> &nbsp;<i id="device_required" class="fa fa-asterisk w3-text-red opt_req" style="display none"></i>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><com:TLabel ForControl="ChangerDevice" Text="<%[ Changer device: ]%>" /></div>
+					<div class="w3-half">
+						<com:TActiveTextBox
+							ID="ChangerDevice"
+							AutoPostBack="false"
+							MaxLength="100"
+							CssClass="w3-input w3-border"
+							Attributes.placeholder="/dev/sg4"
+						/>
+						<com:TRequiredFieldValidator
+							ValidationGroup="AutchangerGroup"
+							ControlToValidate="ChangerDevice"
+							ErrorMessage="<%[ Field cannot be empty. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+					</div> &nbsp;<i id="device_required" class="fa fa-asterisk w3-text-red opt_req" style="display none"></i>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><com:TLabel ForControl="ChangerCommand" Text="<%[ Changer command: ]%>" /></div>
+					<div class="w3-half">
+						<com:TActiveTextBox
+							ID="ChangerCommand"
+							AutoPostBack="false"
+							MaxLength="100"
+							CssClass="w3-input w3-border"
+							Attributes.placeholder="/some/path/mtx-changer %c %o %S %a %d"
+						/>
+						<com:TRequiredFieldValidator
+							ValidationGroup="AutchangerGroup"
+							ControlToValidate="ChangerCommand"
+							ErrorMessage="<%[ Field cannot be empty. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+					</div> &nbsp;<i id="device_required" class="fa fa-asterisk w3-text-red opt_req" style="display none"></i>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third">
+						<com:TLabel
+							ForControl="ChangerCommandUseSudo"
+							Text="<%[ Use sudo: ]%>"
+						/>
+					</div>
+					<div class="w3-col w3-half">
+						<com:TActiveCheckBox
+							ID="ChangerCommandUseSudo"
+							CssClass="w3-check"
+						/> &nbsp;<a href="javascript:void(0)" onclick="oSudoConfig.get_config('changer_command');"><%[ Get sudo configuration ]%></a>
+					</div>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third">
+						<com:TLabel
+							ForControl="ChangerCommandTest"
+							Text="<%[ Changer command test: ]%>"
+						/></div>
+					<div class="w3-col w3-half">
+						<table>
+							<tr>
+								<td>
+									<com:TActiveLinkButton
+										ID="ChangerCommandTest"
+										CssClass="w3-button w3-green"
+										CausesValidation="false"
+										OnCallback="testChangerCommand"
+									>
+										<prop:ClientSide.OnLoading>
+											$('#changer_command_test_result_ok').hide();
+											$('#changer_command_test_result_err').hide();
+											$('#<%=$this->ChangerCommandTestResultErr->ClientID%>').hide();
+											$('#changer_command_test_loader').show();
+										</prop:ClientSide.OnLoading>
+										<prop:ClientSide.OnComplete>
+											$('#changer_command_test_loader').hide();
+										</prop:ClientSide.OnComplete>
+										<i class="fas fa-play"></i> &nbsp;<%[ test ]%>
+									</com:TActiveLinkButton>
+								</td>
+								<td style="padding-left: 10px">
+									<span id="changer_command_test_loader" style="display: none">
+										<i class="fas fa-sync fa-spin" title="<%[ Loading... ]%>"></i>
+									</span>
+									<span id="changer_command_test_result_ok" class="w3-text-green" style="display: none">
+										<i class="fas fa-check"></i> &nbsp;<%[ OK ]%>
+									</span>
+									<span id="changer_command_test_result_err" class="w3-text-red" style="display: none">
+										<i class="fas fa-exclamation-circle"></i> &nbsp;
+									</span>
+									<com:TActiveLabel ID="ChangerCommandTestResultErr" CssClass="w3-text-red" Display="None"><%[ Changer command error ]%></com:TActiveLabel>
+								</td>
+							</tr>
+						</table>
+					</div>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><com:TLabel ForControl="ChangerCommand" Text="<%[ Devices: ]%>" /></div>
+					<div class="w3-half">
+						<com:TActiveListBox
+							ID="ChangerDevices"
+							SelectionMode="Multiple"
+							CssClass="w3-input w3-border"
+							AutoPostBack="false"
+						/>
+						<com:TRequiredFieldValidator
+							ValidationGroup="AutchangerGroup"
+							ControlToValidate="ChangerDevices"
+							ErrorMessage="<%[ Field cannot be empty. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+						<p class="w3-text-black" style="margin-top: 8px;"><%[ Use CTRL + left-click to multiple item selection ]%></p>
+					</div> &nbsp;<i id="device_required" class="fa fa-asterisk w3-text-red opt_req" style="display none"></i>
+				</div>
+				<footer class="w3-container w3-center">
+					<button type="button" class="w3-button w3-red" onclick="document.getElementById('autochanger_window').style.display = 'none';"><i class="fas fa-times"></i> &nbsp;<%[ Cancel ]%></button>
+					<com:TActiveLinkButton
+						ID="AutochangerSave"
+						ValidationGroup="AutchangerGroup"
+						CausesValidation="true"
+						OnCallback="saveAutochanger"
+						CssClass="w3-button w3-section w3-teal w3-padding"
+					>
+						<i class="fa fa-save"></i> &nbsp;<%[ Save ]%>
+					</com:TActiveLinkButton>
+				</footer>
+				<com:TActiveHiddenField ID="AutochangerWindowType" />
+			</div>
+		</div>
+	</div>
+<com:TCallback ID="AutochangerList" OnCallback="setAutochangerList" />
+<com:TCallback ID="LoadAutochanger" OnCallback="loadAutochanger" />
+<com:TCallback ID="AddAutochanger" OnCallback="addAutochanger" />
+<com:TCallback ID="DeleteAutochanger" OnCallback="deleteAutochanger" />
+<script>
+var oAPIAutochangers = {
+	ids: {
+		autochanger_window: 'autochanger_window',
+		autochanger_name: '<%=$this->AutochangerName->ClientID%>',
+		autochanger_device: '<%=$this->ChangerDevice->ClientID%>',
+		autochanger_command: '<%=$this->ChangerCommand->ClientID%>',
+		autochanger_devices: '<%=$this->ChangerDevices->ClientID%>',
+		title_add: 'autochanger_window_title_add',
+		title_edit: 'autochanger_window_title_edit',
+		window_type: '<%=$this->AutochangerWindowType->ClientID%>',
+		autochanger_exists: 'autochanger_exists',
+		autochanger_config: 'autochanger_config'
+	},
+	achs_config: {},
+	init: function() {
+		this.set_events();
+		this.load_autochanger_list();
+	},
+	set_events: function() {
+		var send_form = function(e) {
+			var kc = e.which || e.keyCode;
+			if (kc == 13) {
+				$('#<%=$this->AutochangerSave->ClientID%>').click();
+			}
+		};
+		[
+			this.ids.autochanger_name,
+			this.ids.autochanger_device,
+			this.ids.autochanger_command,
+			this.ids.autochanger_devices
+		].forEach(function(id) {
+			document.getElementById(id).addEventListener('keypress', send_form);
+		});
+		var ach_conf = document.getElementById(this.ids.autochanger_config);
+		ach_conf.addEventListener('change', function(e) {
+			var name = document.getElementById(this.ids.autochanger_name);
+			var device = document.getElementById(this.ids.autochanger_device);
+			var command = document.getElementById(this.ids.autochanger_command);
+			if (ach_conf.value) {
+				name.value = this.achs_config[ach_conf.value].Name;
+				device.value = this.achs_config[ach_conf.value].ChangerDevice;
+				command.value = this.achs_config[ach_conf.value].ChangerCommand;
+			} else {
+				name.value = device.value = command.value = '';
+			}
+		}.bind(this));
+	},
+	show_autochanger_window: function(show, name) {
+		oAPIAutochangers.hide_errors();
+		oAPIAutochangers.clear_fields();
+		var win = document.getElementById(oAPIAutochangers.ids.autochanger_window);
+		if (show) {
+			win.style.display = 'block';
+		} else {
+			win.style.display = 'none';
+		}
+		var title_add = document.getElementById(oAPIAutochangers.ids.title_add);
+		var title_edit = document.getElementById(oAPIAutochangers.ids.title_edit);
+		var window_type = document.getElementById(oAPIAutochangers.ids.window_type);
+		var autochanger_name = document.getElementById(oAPIAutochangers.ids.autochanger_name);
+		if (name) {
+			// edit autochanger
+			this.load_autochanger_window(name);
+			title_add.style.display = 'none';
+			title_edit.style.display = '';
+			window_type.value = '<%=APIDevices::WINDOW_TYPE_EDIT%>';
+			autochanger_name.setAttribute('readonly', true);
+		} else {
+			// add new autochanger
+			title_edit.style.display = 'none';
+			title_add.style.display = '';
+			window_type.value = '<%=APIDevices::WINDOW_TYPE_ADD%>';
+			autochanger_name.removeAttribute('readonly');
+			autochanger_name.focus();
+		}
+	},
+	load_autochanger_window: function(name) {
+		var cb = <%=$this->LoadAutochanger->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(name);
+		cb.dispatch();
+	},
+	load_autochanger_list: function() {
+		var cb = <%=$this->AutochangerList->ActiveControl->Javascript%>;
+		cb.dispatch();
+	},
+	load_autochanger_list_cb: function(autochangers) {
+		oAutochangerList.data = autochangers;
+		oAutochangerList.init();
+	},
+	add_autochanger: function() {
+		var cb = <%=$this->AddAutochanger->ActiveControl->Javascript%>;
+		cb.dispatch();
+		this.show_autochanger_window(true);
+	},
+	edit_autochanger: function(name) {
+		this.show_autochanger_window(true, name);
+	},
+	delete_autochanger: function(name) {
+		if (!confirm('<%[ Are you sure? ]%>')) {
+			return false;
+		}
+		var cb = <%=$this->DeleteAutochanger->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(name);
+		cb.dispatch();
+	},
+	set_disabled_drives: function(indices) {
+		oAPIAutochangers.clear_disabled_drives();
+		var devices = document.getElementById(oAPIAutochangers.ids.autochanger_devices);
+		for (var i = 0; i < indices.length; i++) {
+			devices.options[indices[i]].setAttribute('disabled', 'disabled');
+		}
+	},
+	clear_disabled_drives: function() {
+		var devices = document.getElementById(oAPIAutochangers.ids.autochanger_devices);
+		for (var i = 0; i < devices.options.length; i++) {
+			if (devices.options[i].hasAttribute('disabled')) {
+				devices.options[i].removeAttribute('disabled');
+			}
+		}
+	},
+	hide_errors: function() {
+		document.getElementById(this.ids.autochanger_exists).style.display = 'none';
+		// changer command test result
+		$('#changer_command_test_result_ok').hide();
+		$('#changer_command_test_result_err').hide();
+		$('#<%=$this->ChangerCommandTestResultErr->ClientID%>').hide();
+	},
+	clear_fields: function() {
+		[
+			this.ids.autochanger_name,
+			this.ids.autochanger_device,
+			this.ids.autochanger_command,
+			this.ids.autochanger_devices
+		].forEach(function(id) {
+			document.getElementById(id).value = '';
+		});
+	},
+	set_config_autochangers: function(achs) {
+		if (achs.exitcode !== 0) {
+			return false;
+		}
+
+		var combo = document.getElementById(oAPIAutochangers.ids.autochanger_config);
+		var opt = document.createElement('OPTION');
+		opt.value = '';
+		var label = document.createTextNode('');
+		opt.appendChild(label);
+		combo.appendChild(opt);
+
+		for (var i = 0; i < achs.output.length; i++) {
+			opt = document.createElement('OPTION');
+			opt.value = achs.output[i].Autochanger.Name;
+			label = document.createTextNode(achs.output[i].Autochanger.Name);
+			opt.appendChild(label);
+			combo.appendChild(opt);
+			oAPIAutochangers.achs_config[achs.output[i].Autochanger.Name] = achs.output[i].Autochanger;
+		}
+	}
+};
+$(function() {
+	oAPIAutochangers.init();
+});
+</script>
+	<div class="w3-container tab_item" id="devices_device" style="display: none">
+		<a href="javascript:void(0)" class="w3-button w3-green w3-margin-bottom" onclick="oAPIDevices.show_device_window(true);">
+			<i class="fas fa-plus"></i> &nbsp;<%[ Add device ]%>
+		</a>
+		<table id="device_list" class="w3-table w3-striped w3-hoverable w3-white w3-margin-bottom" style="width: 100%">
+			<thead>
+				<tr>
+					<th></th>
+					<th><%[ Name ]%></th>
+					<th><%[ Device ]%></th>
+					<th><%[ Drive index ]%></th>
+					<th><%[ Autochanger ]%></th>
+					<th><%[ Actions ]%></th>
+				</tr>
+			</thead>
+			<tbody id="device_list_body"></tbody>
+			<tfoot>
+				<tr>
+					<th></th>
+					<th><%[ Name ]%></th>
+					<th><%[ Device ]%></th>
+					<th><%[ Drive index ]%></th>
+					<th><%[ Autochanger ]%></th>
+					<th><%[ Actions ]%></th>
+				</tr>
+			</tfoot>
+		</table>
+	</div>
+<script>
+var oDeviceList = {
+	ids: {
+		device_list: 'device_list',
+		device_list_body: 'device_list_body'
+	},
+	table: null,
+	data: [],
+	init: function() {
+		if (!this.table) {
+			this.set_table();
+		} else {
+			var page = this.table.page();
+			this.table.clear().rows.add(this.data).draw();
+			this.table.page(page).draw(false);
+		}
+	},
+	set_table: function() {
+		this.table = $('#' + this.ids.device_list).DataTable({
+			data: this.data,
+			deferRender: true,
+			dom: 'lBfrtip',
+			stateSave: true,
+			buttons: [
+				'copy', 'csv', 'colvis'
+			],
+			columns: [
+				{
+					className: 'details-control',
+					orderable: false,
+					data: null,
+					defaultContent: '<button type="button" class="w3-button w3-blue"><i class="fa fa-angle-down"></i></button>'
+				},
+				{data: 'name'},
+				{data: 'device'},
+				{data: 'index'},
+				{data: 'autochanger'},
+				{
+					data: 'name',
+					render: function(data, type, row) {
+						var span = document.createElement('SPAN');
+						span.className = 'w3-right';
+
+						var chpwd_btn = document.createElement('BUTTON');
+						chpwd_btn.className = 'w3-button w3-green';
+						chpwd_btn.type = 'button';
+						var i = document.createElement('I');
+						i.className = 'fas fa-edit';
+						var label = document.createTextNode(' <%[ Edit ]%>');
+						chpwd_btn.appendChild(i);
+						chpwd_btn.innerHTML += '&nbsp';
+						chpwd_btn.appendChild(label);
+						chpwd_btn.setAttribute('onclick', 'oAPIDevices.edit_device("' + data + '")');
+
+						var del_btn = document.createElement('BUTTON');
+						del_btn.className = 'w3-button w3-red w3-margin-left';
+						del_btn.type = 'button';
+						var i = document.createElement('I');
+						i.className = 'fas fa-trash-alt';
+						var label = document.createTextNode(' <%[ Delete ]%>');
+						del_btn.appendChild(i);
+						del_btn.innerHTML += '&nbsp';
+						del_btn.appendChild(label);
+						del_btn.setAttribute('onclick', 'oAPIDevices.delete_device("' + data + '", "' + row.autochanger + '")');
+
+						span.appendChild(chpwd_btn);
+						span.appendChild(del_btn);
+
+						return span.outerHTML;
+					}
+				}
+			],
+			responsive: {
+				details: {
+					type: 'column'
+				}
+			},
+			columnDefs: [{
+				className: 'control',
+				orderable: false,
+				targets: 0
+			},
+			{
+				className: "dt-center",
+				targets: [ 3, 5 ]
+			}],
+			order: [1, 'asc'],
+			initComplete: function () {
+				oDeviceList.set_filters(this.api());
+			}
+		});
+	},
+	set_filters: function(api) {
+		api.columns([2, 3, 4]).every(function () {
+			var column = this;
+			var select = $('<select><option value=""></option></select>')
+			.appendTo($(column.footer()).empty())
+			.on('change', function () {
+				var val = dtEscapeRegex(
+					$(this).val()
+				);
+				column
+				.search(val ? '^' + val + '$' : '', true, false)
+				.draw();
+			});
+			column.data().unique().sort().each(function (d, j) {
+				if (column.search() == '^' + dtEscapeRegex(d) + '$') {
+					select.append('<option value="' + d + '" title="' + d + '" selected>' + d + '</option>');
+				} else if (d) {
+					select.append('<option value="' + d + '" title="' + d + '">' + d + '</option>');
+				}
+			});
+		});
+	},
+};
+</script>
+	<div id="device_window" class="w3-modal">
+		<div class="w3-modal-content w3-animate-top w3-card-4">
+			<header class="w3-container w3-teal">
+				<span onclick="document.getElementById('device_window').style.display = 'none';" class="w3-button w3-display-topright">&times;</span>
+				<h2 id="device_window_title_add" style="display: none"><%[ Add device ]%></h2>
+				<h2 id="device_window_title_edit" style="display: none"><%[ Edit device ]%></h2>
+			</header>
+			<div class="w3-container w3-margin-left w3-margin-right w3-text-teal">
+				<span id="device_exists" class="error" style="display: none"><ul><li><%[ Device with the given name already exists. ]%></li></ul></span>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><label for="device_config"><%[ Copy from Bacula SD config: ]%></label></div>
+					<div class="w3-half">
+						<select id="device_config" class="w3-select w3-border"></select>
+					</div>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><com:TLabel ForControl="DeviceName" Text="<%[ Name: ]%>" /></div>
+					<div class="w3-half">
+						<com:TActiveTextBox
+							ID="DeviceName"
+							AutoPostBack="false"
+							MaxLength="100"
+							CssClass="w3-input w3-border"
+							Attributes.placeholder="My Device 123"
+						/>
+						<com:TRequiredFieldValidator
+							ValidationGroup="DeviceGroup"
+							ControlToValidate="DeviceName"
+							ErrorMessage="<%[ Field cannot be empty. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+						<com:TRegularExpressionValidator
+							ValidationGroup="DeviceGroup"
+							RegularExpression="<%=DeviceConfig::DEVICE_PATH_PATTERN%>"
+							ControlToValidate="DeviceName"
+							ErrorMessage="<%[ Invalid value. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+					</div> &nbsp;<i id="device_required" class="fa fa-asterisk w3-text-red opt_req" style="display none"></i>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><com:TLabel ForControl="ChangerDevice" Text="<%[ Device path: ]%>" /></div>
+					<div class="w3-half">
+						<com:TActiveTextBox
+							ID="DeviceDevice"
+							AutoPostBack="false"
+							MaxLength="100"
+							CssClass="w3-input w3-border"
+							Attributes.placeholder="/dev/nst1"
+						/>
+						<com:TRequiredFieldValidator
+							ValidationGroup="DeviceGroup"
+							ControlToValidate="DeviceDevice"
+							ErrorMessage="<%[ Field cannot be empty. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+					</div> &nbsp;<i id="device_required" class="fa fa-asterisk w3-text-red opt_req" style="display none"></i>
+				</div>
+				<div class="w3-row w3-section">
+					<div class="w3-col w3-third"><com:TLabel ForControl="ChangerCommand" Text="<%[ Drive index: ]%>" /></div>
+					<div class="w3-half">
+						<com:TActiveTextBox
+							ID="DeviceIndex"
+							AutoPostBack="false"
+							MaxLength="4"
+							Style.Width="100px"
+							CssClass="w3-input w3-border"
+							Attributes.placeholder="0"
+						/>
+						<com:TRequiredFieldValidator
+							ValidationGroup="DeviceGroup"
+							ControlToValidate="DeviceIndex"
+							ErrorMessage="<%[ Field cannot be empty. ]%>"
+							ControlCssClass="field_invalid"
+							Display="Dynamic"
+						/>
+					</div> &nbsp;<i id="device_required" class="fa fa-asterisk w3-text-red opt_req" style="display none"></i>
+				</div>
+				<footer class="w3-container w3-center">
+					<button type="button" class="w3-button w3-red" onclick="document.getElementById('device_window').style.display = 'none';"><i class="fas fa-times"></i> &nbsp;<%[ Cancel ]%></button>
+					<com:TActiveLinkButton
+						ID="DeviceSave"
+						ValidationGroup="DeviceGroup"
+						CausesValidation="true"
+						OnCallback="saveDevice"
+						CssClass="w3-button w3-section w3-teal w3-padding"
+					>
+						<i class="fa fa-save"></i> &nbsp;<%[ Save ]%>
+					</com:TActiveLinkButton>
+				</footer>
+				<com:TActiveHiddenField ID="DeviceWindowType" />
+			</div>
+		</div>
+	</div>
+<com:TCallback ID="DeviceList" OnCallback="setDeviceList" />
+<com:TCallback ID="LoadDevice" OnCallback="loadDevice" />
+<com:TCallback ID="DeleteDevice" OnCallback="deleteDevice" />
+<script>
+var oAPIDevices = {
+	ids: {
+		device_window: 'device_window',
+		device_name: '<%=$this->DeviceName->ClientID%>',
+		device_device: '<%=$this->DeviceDevice->ClientID%>',
+		device_index: '<%=$this->DeviceIndex->ClientID%>',
+		title_add: 'device_window_title_add',
+		title_edit: 'device_window_title_edit',
+		window_type: '<%=$this->DeviceWindowType->ClientID%>',
+		device_exists: 'device_exists',
+		device_config: 'device_config'
+	},
+	devs_config: {},
+	init: function() {
+		this.set_events();
+		this.load_device_list();
+	},
+	set_events: function() {
+		var send_form = function(e) {
+			var kc = e.which || e.keyCode;
+			if (kc == 13) {
+				$('#<%=$this->DeviceSave->ClientID%>').click();
+			}
+		};
+		[
+			this.ids.device_name,
+			this.ids.device_device,
+			this.ids.device_index
+		].forEach(function(id) {
+			document.getElementById(id).addEventListener('keypress', send_form);
+		});
+		var dev_conf = document.getElementById(this.ids.device_config);
+		dev_conf.addEventListener('change', function(e) {
+			var name = document.getElementById(this.ids.device_name);
+			var device = document.getElementById(this.ids.device_device);
+			var index = document.getElementById(this.ids.device_index);
+			if (dev_conf.value) {
+				name.value = this.devs_config[dev_conf.value].Name;
+				device.value = this.devs_config[dev_conf.value].ArchiveDevice;
+				index.value = this.devs_config[dev_conf.value].DriveIndex;
+			} else {
+				name.value = device.value = index.value = '';
+			}
+		}.bind(this));
+	},
+	show_device_window: function(show, name) {
+		oAPIDevices.hide_errors();
+		oAPIDevices.clear_fields();
+		var win = document.getElementById(oAPIDevices.ids.device_window);
+		if (show) {
+			win.style.display = 'block';
+		} else {
+			win.style.display = 'none';
+		}
+		var title_add = document.getElementById(oAPIDevices.ids.title_add);
+		var title_edit = document.getElementById(oAPIDevices.ids.title_edit)
+		var window_type = document.getElementById(oAPIDevices.ids.window_type);
+		var device_name = document.getElementById(oAPIDevices.ids.device_name);
+		if (name) {
+			// edit device
+			oAPIDevices.load_device_window(name);
+			window_type.value = '<%=APIDevices::WINDOW_TYPE_EDIT%>';
+			title_add.style.display = 'none';
+			title_edit.style.display = '';
+			device_name.setAttribute('readonly', true);
+		} else {
+			// add new device
+			window_type.value = '<%=APIDevices::WINDOW_TYPE_ADD%>';
+			title_edit.style.display = 'none';
+			title_add.style.display = '';
+			device_name.removeAttribute('readonly');
+			device_name.focus();
+		}
+	},
+	load_device_window: function(name) {
+		var cb = <%=$this->LoadDevice->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(name);
+		cb.dispatch();
+	},
+	load_device_list: function() {
+		var cb = <%=$this->DeviceList->ActiveControl->Javascript%>;
+		cb.dispatch();
+	},
+	load_device_list_cb: function(devices) {
+		oDeviceList.data = devices;
+		oDeviceList.init();
+	},
+	edit_device: function(name) {
+		this.show_device_window(true, name);
+	},
+	delete_device: function(name, autochanger) {
+		if (autochanger) {
+			var emsg = "<%[ Unable to delete device. Please unassign it from autochanger '%s' first. ]%>";
+			emsg = emsg.replace('%s', autochanger);
+			alert(emsg);
+			return false;
+		}
+		if (!confirm('<%[ Are you sure? ]%>')) {
+			return false;
+		}
+		var cb = <%=$this->DeleteDevice->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(name);
+		cb.dispatch();
+	},
+	hide_errors: function() {
+		document.getElementById(this.ids.device_exists).style.display = 'none';
+	},
+	clear_fields: function() {
+		[
+			this.ids.device_name,
+			this.ids.device_device,
+			this.ids.device_index
+		].forEach(function(id) {
+			document.getElementById(id).value = '';
+		});
+	},
+	set_config_devices: function(devs) {
+		if (devs.exitcode !== 0) {
+			return false;
+		}
+
+		var combo = document.getElementById(oAPIDevices.ids.device_config);
+		var opt = document.createElement('OPTION');
+		opt.value = '';
+		var label = document.createTextNode('');
+		opt.appendChild(label);
+		combo.appendChild(opt);
+
+		for (var i = 0; i < devs.output.length; i++) {
+			opt = document.createElement('OPTION');
+			opt.value = devs.output[i].Device.Name;
+			label = document.createTextNode(devs.output[i].Device.Name);
+			opt.appendChild(label);
+			combo.appendChild(opt);
+			oAPIDevices.devs_config[devs.output[i].Device.Name] = devs.output[i].Device;
+		}
+	}
+};
+$(function() {
+	oAPIDevices.init();
+});
+</script>
+</com:TContent>
diff --git a/gui/baculum/protected/API/Pages/Panel/APIDevices.php b/gui/baculum/protected/API/Pages/Panel/APIDevices.php
new file mode 100644
index 000000000..895850209
--- /dev/null
+++ b/gui/baculum/protected/API/Pages/Panel/APIDevices.php
@@ -0,0 +1,321 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+Prado::using('Application.API.Class.DeviceConfig');
+Prado::using('Application.API.Class.BAPIException');
+Prado::using('Application.API.Class.BaculumAPIPage');
+
+/**
+ * API devices page.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category Panel
+ * @package Baculum API
+ */
+class APIDevices extends BaculumAPIPage {
+
+	const WINDOW_TYPE_ADD = 'add';
+	const WINDOW_TYPE_EDIT = 'edit';
+
+	private $config;
+
+	public function onInit($param) {
+		parent::onInit($param);
+		$this->config = $this->getModule('device_config')->getConfig();
+	}
+
+	public function setAutochangerList($sender, $param) {
+		$devices = [];
+		foreach ($this->config as $name => $device) {
+			if ($device['type'] !== DeviceConfig::DEV_TYPE_AUTOCHANGER) {
+				continue;
+			}
+			$device['name'] = $name;
+			$devices[] = $device;
+		}
+
+		$this->getCallbackClient()->callClientFunction(
+			'oAPIAutochangers.load_autochanger_list_cb',
+			[$devices]
+		);
+
+		if (is_object($sender)) {
+			$this->setConfigAutochangers();
+		}
+	}
+
+	public function addAutochanger($sender, $param) {
+		$ach_drives = $this->getAutochangerDrives();
+		$disabled_indices = [];
+		for ($i = 0; $i < $this->ChangerDevices->getItemCount(); $i++) {
+			$item = $this->ChangerDevices->Items[$i];
+			if (key_exists($item->Value, $ach_drives)) {
+				$disabled_indices[] = $i;
+			}
+		}
+
+		$this->getCallbackClient()->callClientFunction(
+			'oAPIAutochangers.set_disabled_drives',
+			[$disabled_indices]
+		);
+	}
+
+	public function loadAutochanger($sender, $param) {
+		$ach_name = $param->getCallbackParameter();
+		$ach = [];
+		foreach ($this->config as $name => $device) {
+			if ($device['type'] !== DeviceConfig::DEV_TYPE_AUTOCHANGER) {
+				continue;
+			}
+			if ($name == $ach_name) {
+				$ach = $device;
+				break;
+			}
+		}
+		if (count($ach) > 0) {
+			$this->AutochangerName->Text = $name;
+			$this->ChangerDevice->Text = $ach['device'];
+			$this->ChangerCommand->Text = $ach['command'];
+			$this->ChangerCommandUseSudo->Checked = ($ach['use_sudo'] == 1);
+			$drives = explode(',', $ach['drives']);
+			$ach_drives = $this->getAutochangerDrives();
+			$disabled_indices = [];
+			$selected_indices = [];
+			for ($i = 0; $i < $this->ChangerDevices->getItemCount(); $i++) {
+				$item = $this->ChangerDevices->Items[$i];
+				if (key_exists($item->Value, $ach_drives) && $ach_drives[$item->Value] !== $name) {
+					$disabled_indices[] = $i;
+					continue;
+				}
+				if (in_array($item->Value, $drives)) {
+					$selected_indices[] = $i;
+				}
+			}
+			$this->ChangerDevices->setSelectedIndices($selected_indices);
+			$this->getCallbackClient()->callClientFunction(
+				'oAPIAutochangers.set_disabled_drives',
+				[$disabled_indices]
+			);
+		}
+	}
+
+	public function saveAutochanger($sender, $param) {
+		if ($this->AutochangerWindowType->Value == self::WINDOW_TYPE_ADD && key_exists($this->AutochangerName->Text, $this->config)) {
+			$this->getCallbackClient()->show('autochanger_exists');
+			return;
+		}
+		$drives = [];
+		$selected_indices = $this->ChangerDevices->getSelectedIndices();
+		foreach ($selected_indices as $indice) {
+			for ($i = 0; $i < $this->ChangerDevices->getItemCount(); $i++) {
+				if ($i === $indice) {
+					$drives[] = $this->ChangerDevices->Items[$i]->Value;
+				}
+			}
+		}
+		$autochanger = [
+			'type' => DeviceConfig::DEV_TYPE_AUTOCHANGER,
+			'device' => $this->ChangerDevice->Text,
+			'command' => $this->ChangerCommand->Text,
+			'use_sudo' => $this->ChangerCommandUseSudo->Checked ? '1' : '0',
+			'drives'=> implode(',', $drives)
+		];
+		$this->config[$this->AutochangerName->Text] = $autochanger;
+		$result = $this->getModule('device_config')->setConfig($this->config);
+		if ($result) {
+			$this->getCallbackClient()->callClientFunction('oAPIAutochangers.show_autochanger_window', [false]);
+			$this->setAutochangerList(null, null);
+			$this->setDeviceList(null, null);
+		}
+	}
+
+	public function deleteAutochanger($sender, $param) {
+		$ach = $param->getCallbackParameter();
+		if (!key_exists($ach, $this->config)) {
+			return;
+		}
+		unset($this->config[$ach]);
+		$result = $this->getModule('device_config')->setConfig($this->config);
+		if ($result) {
+			$this->setAutochangerList(null, null);
+			$this->setDeviceList(null, null);
+		}
+	}
+
+	public function testChangerCommand($sender, $param) {
+		$emsg = '';
+		$use_sudo = $this->ChangerCommandUseSudo->Checked;
+		$changer_command = $this->ChangerCommand->Text;
+		$changer_device = $this->ChangerDevice->Text;
+		$command = 'listall';
+		// slot, archive device and index are not used in listall cmd
+		$slot = 0;
+		$archive_device = '/dev/null';
+		$drive_index = 0;
+		$is_validate = false;
+		if (!empty($changer_command) && !empty($changer_device)) {
+			$result = $this->getModule('changer_command')->testChangerCommand(
+				$use_sudo,
+				$changer_command,
+				$changer_device,
+				$command,
+				$slot,
+				$archive_device,
+				$drive_index
+			);
+			$is_validate = ($result->error === 0);
+			if (!$is_validate) {
+				$this->ChangerCommandTestResultErr->Text = implode(PHP_EOL, $result->output);
+			}
+		}
+		if ($is_validate === true) {
+			$this->getCallbackClient()->show('changer_command_test_result_ok');
+			$this->getCallbackClient()->hide('changer_command_test_result_err');
+			$this->getCallbackClient()->hide($this->ChangerCommandTestResultErr);
+		} else {
+			$this->getCallbackClient()->hide('changer_command_test_result_ok');
+			$this->getCallbackClient()->show('changer_command_test_result_err');
+			$this->getCallbackClient()->show($this->ChangerCommandTestResultErr);
+		}
+	}
+
+	public function setDeviceList($sender, $param) {
+		$devices = [];
+		$ach_devices = $this->getAutochangerDrives();
+		$dev_names = [];
+		foreach ($this->config as $name => $device) {
+			if ($device['type'] !== DeviceConfig::DEV_TYPE_DEVICE) {
+				continue;
+			}
+			$device['name'] = $name;
+			$device['autochanger'] = (key_exists($name, $ach_devices)) ? $ach_devices[$name] : '';
+			$dev_names[] = $name;
+			$devices[] = $device;
+		}
+
+		// Set changer device select list
+		$this->ChangerDevices->DataSource = array_combine($dev_names, $dev_names);
+		$this->ChangerDevices->dataBind();
+
+		$this->getCallbackClient()->callClientFunction(
+			'oAPIDevices.load_device_list_cb',
+			[$devices]
+		);
+
+		if (is_object($sender)) {
+			$this->setConfigDevices();
+		}
+	}
+
+	private function getAutochangerDrives() {
+		$ach_devices = [];
+		foreach ($this->config as $name => $device) {
+			if ($device['type'] !== DeviceConfig::DEV_TYPE_AUTOCHANGER) {
+				continue;
+			}
+			$drives = explode(',', $device['drives']);
+			for ($i = 0; $i < count($drives); $i++) {
+				$ach_devices[$drives[$i]] = $name;
+			}
+		}
+		return $ach_devices;
+	}
+
+	public function loadDevice($sender, $param) {
+		$dev_name = $param->getCallbackParameter();
+		$dev = [];
+		foreach ($this->config as $name => $device) {
+			if ($device['type'] !== DeviceConfig::DEV_TYPE_DEVICE) {
+				continue;
+			}
+			if ($name == $dev_name) {
+				$dev = $device;
+				break;
+			}
+		}
+		if (count($dev) > 0) {
+			$this->DeviceName->Text = $name;
+			$this->DeviceDevice->Text = $dev['device'];
+			$this->DeviceIndex->Text = $dev['index'];
+		}
+	}
+
+	public function saveDevice($sender, $param) {
+		if ($this->DeviceWindowType->Value == self::WINDOW_TYPE_ADD && key_exists($this->DeviceName->Text, $this->config)) {
+			$this->getCallbackClient()->show('device_exists');
+			return;
+		}
+		$device = [
+			'type' => DeviceConfig::DEV_TYPE_DEVICE,
+			'device' => $this->DeviceDevice->Text,
+			'index' => intval($this->DeviceIndex->Text)
+		];
+		$this->config[$this->DeviceName->Text] = $device;
+		$result = $this->getModule('device_config')->setConfig($this->config);
+		if ($result) {
+			$this->getCallbackClient()->callClientFunction(
+				'oAPIDevices.show_device_window',
+				[false]
+			);
+			$this->setDeviceList(null, null);
+		}
+	}
+
+	public function deleteDevice($sender, $param) {
+		$device = $param->getCallbackParameter();
+		if (!key_exists($device, $this->config)) {
+			return;
+		}
+		unset($this->config[$device]);
+		$result = $this->getModule('device_config')->setConfig($this->config);
+		if ($result) {
+			$this->setDeviceList(null, null);
+		}
+	}
+
+	private function setConfigAutochangers() {
+		$achs = [];
+		try {
+			$achs = $this->getModule('bacula_setting')->getConfig('sd', 'Autochanger');
+		} catch (BConfigException $e) {
+			// do nothing
+		}
+		$this->getCallbackClient()->callClientFunction(
+			'oAPIAutochangers.set_config_autochangers',
+			[$achs]
+		);
+	}
+
+	private function setConfigDevices() {
+		$devs = [];
+		try {
+			$devs = $this->getModule('bacula_setting')->getConfig('sd', 'Device');
+		} catch (BConfigException $e) {
+			// do nothing
+		}
+		$this->getCallbackClient()->callClientFunction(
+			'oAPIDevices.set_config_devices',
+			[$devs]
+		);
+	}
+}
+?>
diff --git a/gui/baculum/protected/API/Pages/Panel/APIInstallWizard.page b/gui/baculum/protected/API/Pages/Panel/APIInstallWizard.page
index 8ef6fc3d4..0c49cd0fa 100644
--- a/gui/baculum/protected/API/Pages/Panel/APIInstallWizard.page
+++ b/gui/baculum/protected/API/Pages/Panel/APIInstallWizard.page
@@ -401,7 +401,7 @@
 						<com:TCheckBox
 							ID="UseSudo"
 							CssClass="w3-check"
-						/> &nbsp;<a href="javascript:void(0)" onclick="get_sudo_config('bconsole');"><%[ Get sudo configuration ]%></a>
+						/> &nbsp;<a href="javascript:void(0)" onclick="oSudoConfig.get_config('bconsole');"><%[ Get sudo configuration ]%></a>
 
 					</div>
 				</div>
@@ -534,7 +534,7 @@
 							<com:TCheckBox
 								ID="BJSONUseSudo"
 								CssClass="w3-check"
-							/> &nbsp;<a href="javascript:void(0)" onclick="get_sudo_config('config');"><%[ Get sudo configuration ]%></a>
+							/> &nbsp;<a href="javascript:void(0)" onclick="oSudoConfig.get_config('config');"><%[ Get sudo configuration ]%></a>
 						</div>
 					</div>
 				</fieldset>
@@ -1248,22 +1248,7 @@
 			</fieldset>
 		</com:TWizardStep>
 	</com:TWizard>
-<com:TJuiDialog
-	ID="SudoConfigPopup"
-	Options.title="<%[ Sudo configuration ]%>"
-	Options.autoOpen="false",
-	Options.minWidth="820"
-	Options.minHeight="200"
->
-	<p><%[ Please copy appropriate sudo configuration and put it to a new sudoers.d file for example /etc/sudoers.d/baculum-api ]%></p>
-	<p><strong><%[ Note ]%></strong> <%[ Please use visudo to add this configuration, otherwise please do remember to add empty line at the end of file. ]%>
-	<p><%[ Example sudo configuration for Apache web server user (RHEL, CentOS and others): ]%></p>
-	<pre id="sudo_config_apache"></pre>
-	<p><%[ Example sudo configuration for Lighttpd web server user (RHEL, CentOS and others): ]%></p>
-	<pre id="sudo_config_lighttpd"></pre>
-	<p><%[ Example sudo configuration for Apache and Lighttpd web servers user (Debian, Ubuntu and others): ]%></p>
-	<pre id="sudo_config_www_data"></pre>
-</com:TJuiDialog>
+	<com:Application.API.Portlets.SudoConfig ID="SudoConfig" />
 <script type="text/javascript">
 var bjsontools_fields = {
 	General: {
@@ -1371,33 +1356,17 @@ var actions_hide_test_results = function(action) {
 	result.textContent = '';
 };
 
-function get_sudo_config(type) {
-	var bin_fields = {
-		bconsole: [
-			'<%=$this->BconsolePath->ClientID%>'
-		],
-		config: [
-			'<%=$this->BDirJSONPath->ClientID%>',
-			'<%=$this->BSdJSONPath->ClientID%>',
-			'<%=$this->BFdJSONPath->ClientID%>',
-			'<%=$this->BBconsJSONPath->ClientID%>',
-		]
-	}
-	var val, pre;
-	var cfg = '';
-	var users = ['apache', 'lighttpd', 'www-data'];
-	var fields = bin_fields.hasOwnProperty(type) ? bin_fields[type] : [];
-	for (var i = 0; i < users.length; i++) {
-		var pre = document.getElementById('sudo_config_' + users[i].replace(/-/g, '_'));
-		pre.textContent = 'Defaults:' + users[i] + ' !requiretty' + "\n";
-		for (var j = 0; j < fields.length; j++) {
-			val = document.getElementById(fields[j]).value.trim();
-			if (val) {
-				pre.textContent += users[i] + ' ALL = (root) NOPASSWD: ' + val + "\n";
-			}
-		}
-	}
-	$('#<%=$this->SudoConfigPopup->ClientID%>').dialog('open');
-}
+var bin_fields = {
+	bconsole: [
+		'<%=$this->BconsolePath->ClientID%>'
+	],
+	config: [
+		'<%=$this->BDirJSONPath->ClientID%>',
+		'<%=$this->BSdJSONPath->ClientID%>',
+		'<%=$this->BFdJSONPath->ClientID%>',
+		'<%=$this->BBconsJSONPath->ClientID%>',
+	]
+};
+oSudoConfig.set_bin_fields(bin_fields);
 </script>
 </com:TContent>
diff --git a/gui/baculum/protected/API/Pages/Panel/APISettings.page b/gui/baculum/protected/API/Pages/Panel/APISettings.page
index e4dc9cfdb..5c9380b2e 100644
--- a/gui/baculum/protected/API/Pages/Panel/APISettings.page
+++ b/gui/baculum/protected/API/Pages/Panel/APISettings.page
@@ -312,7 +312,7 @@
 					<com:TCheckBox
 						ID="BconsoleUseSudo"
 						CssClass="w3-check"
-					/> &nbsp;<a href="javascript:void(0)" onclick="get_sudo_config('bconsole');"><%[ Get sudo configuration ]%></a>
+					/> &nbsp;<a href="javascript:void(0)" onclick="oSudoConfig.get_config('bconsole');"><%[ Get sudo configuration ]%></a>
 				</div>
 			</div>
 			<div class="w3-row w3-section">
@@ -447,7 +447,7 @@
 						<com:TCheckBox
 							ID="BJSONUseSudo"
 							CssClass="w3-check"
-						/> &nbsp;<a href="javascript:void(0)" onclick="get_sudo_config('config');"><%[ Get sudo configuration ]%></a>
+						/> &nbsp;<a href="javascript:void(0)" onclick="oSudoConfig.get_config('config');"><%[ Get sudo configuration ]%></a>
 					</div>
 				</div>
 			</fieldset>
@@ -772,7 +772,7 @@
 						<com:TCheckBox
 							ID="ActionsUseSudo"
 							CssClass="w3-check"
-						/> &nbsp;<a href="javascript:void(0)" onclick="get_sudo_config('actions');"><%[ Get sudo configuration ]%></a>
+						/> &nbsp;<a href="javascript:void(0)" onclick="oSudoConfig.get_config('actions');"><%[ Get sudo configuration ]%></a>
 					</div>
 				</div>
 			</fieldset>
@@ -1232,62 +1232,31 @@
 			</div>
 		</div>
 	</div>
-<com:TJuiDialog
-	ID="SudoConfigPopup"
-	Options.title="<%[ Sudo configuration ]%>"
-	Options.autoOpen="false",
-	Options.minWidth="820"
-	Options.minHeight="200"
->
-	<p><%[ Please copy appropriate sudo configuration and put it to a new sudoers.d file for example /etc/sudoers.d/baculum-api ]%></p>
-	<p><strong><%[ Note ]%></strong> <%[ Please use visudo to add this configuration, otherwise please do remember to add empty line at the end of file. ]%>
-	<p><%[ Example sudo configuration for Apache web server user (RHEL, CentOS and others): ]%></p>
-	<pre id="sudo_config_apache"></pre>
-	<p><%[ Example sudo configuration for Lighttpd web server user (RHEL, CentOS and others): ]%></p>
-	<pre id="sudo_config_lighttpd"></pre>
-	<p><%[ Example sudo configuration for Apache and Lighttpd web servers user (Debian, Ubuntu and others): ]%></p>
-	<pre id="sudo_config_www_data"></pre>
-</com:TJuiDialog>
+	<com:Application.API.Portlets.SudoConfig ID="SudoConfig" />
 <script>
-function get_sudo_config(type) {
-	var bin_fields = {
-		bconsole: [
-			'<%=$this->BconsolePath->ClientID%>'
-		],
-		config: [
-			'<%=$this->BDirJSONPath->ClientID%>',
-			'<%=$this->BSdJSONPath->ClientID%>',
-			'<%=$this->BFdJSONPath->ClientID%>',
-			'<%=$this->BBconsJSONPath->ClientID%>',
-		],
-		actions: [
-			'<%=$this->DirStartAction->ClientID%>',
-			'<%=$this->DirStopAction->ClientID%>',
-			'<%=$this->DirRestartAction->ClientID%>',
-			'<%=$this->SdStartAction->ClientID%>',
-			'<%=$this->SdStopAction->ClientID%>',
-			'<%=$this->SdRestartAction->ClientID%>',
-			'<%=$this->FdStartAction->ClientID%>',
-			'<%=$this->FdStopAction->ClientID%>',
-			'<%=$this->FdRestartAction->ClientID%>'
-		]
-	}
-	var val, pre;
-	var cfg = '';
-	var users = ['apache', 'lighttpd', 'www-data'];
-	var fields = bin_fields.hasOwnProperty(type) ? bin_fields[type] : [];
-	for (var i = 0; i < users.length; i++) {
-		var pre = document.getElementById('sudo_config_' + users[i].replace(/-/g, '_'));
-		pre.textContent = 'Defaults:' + users[i] + ' !requiretty' + "\n";
-		for (var j = 0; j < fields.length; j++) {
-			val = document.getElementById(fields[j]).value.trim();
-			if (val) {
-				pre.textContent += users[i] + ' ALL = (root) NOPASSWD: ' + val + "\n";
-			}
-		}
-	}
-	$('#<%=$this->SudoConfigPopup->ClientID%>').dialog('open');
-}
+var bin_fields = {
+	bconsole: [
+		'<%=$this->BconsolePath->ClientID%>'
+	],
+	config: [
+		'<%=$this->BDirJSONPath->ClientID%>',
+		'<%=$this->BSdJSONPath->ClientID%>',
+		'<%=$this->BFdJSONPath->ClientID%>',
+		'<%=$this->BBconsJSONPath->ClientID%>',
+	],
+	actions: [
+		'<%=$this->DirStartAction->ClientID%>',
+		'<%=$this->DirStopAction->ClientID%>',
+		'<%=$this->DirRestartAction->ClientID%>',
+		'<%=$this->SdStartAction->ClientID%>',
+		'<%=$this->SdStopAction->ClientID%>',
+		'<%=$this->SdRestartAction->ClientID%>',
+		'<%=$this->FdStartAction->ClientID%>',
+		'<%=$this->FdStopAction->ClientID%>',
+		'<%=$this->FdRestartAction->ClientID%>'
+	]
+};
+oSudoConfig.set_bin_fields(bin_fields);
 
 var bjsontools_fields = {
 	General: {
diff --git a/gui/baculum/protected/API/Pages/Panel/config.xml b/gui/baculum/protected/API/Pages/Panel/config.xml
index 399a78e79..dfc9b44e7 100644
--- a/gui/baculum/protected/API/Pages/Panel/config.xml
+++ b/gui/baculum/protected/API/Pages/Panel/config.xml
@@ -10,6 +10,8 @@
 		<module id="json_tools" class="Application.API.Class.JSONTools" />
 		<!-- config modules -->
 		<module id="api_config" class="Application.API.Class.APIConfig" />
+		<module id="device_config" class="Application.API.Class.DeviceConfig" />
+		<module id="bacula_setting" class="Application.API.Class.BaculaSetting" />
 		<!-- internalization modules -->
 		<module id="globalization" class="TGlobalization">
 			<translation type="gettext" source="Application.API.Lang" marker="@@" autosave="false" cache="false" DefaultCulture="en" />
@@ -23,5 +25,7 @@
 		<module id="oauth2_config" class="Application.API.Class.OAuth2.OAuth2Config" />
 		<!-- component actions modules -->
 		<module id="comp_actions" class="Application.API.Class.ComponentActions" />
+		<!-- changer command modules -->
+		<module id="changer_command" class="Application.API.Class.ChangerCommand" />
 	</modules>
 </configuration>
diff --git a/gui/baculum/protected/API/Pages/Panel/endpoints.xml b/gui/baculum/protected/API/Pages/Panel/endpoints.xml
index 81e24edbe..8988b8a3a 100644
--- a/gui/baculum/protected/API/Pages/Panel/endpoints.xml
+++ b/gui/baculum/protected/API/Pages/Panel/endpoints.xml
@@ -4,5 +4,6 @@
 	<url ServiceParameter="APIInstallWizard" pattern="panel/config/" />
 	<url ServiceParameter="APIBasicUsers" pattern="panel/basic/" />
 	<url ServiceParameter="APIOAuth2Clients" pattern="panel/oauth2/" />
+	<url ServiceParameter="APIDevices" pattern="panel/devices/" />
 	<url ServiceParameter="APISettings" pattern="panel/settings/" />
 </urls>
diff --git a/gui/baculum/protected/API/Portlets/APISideBar.tpl b/gui/baculum/protected/API/Portlets/APISideBar.tpl
index ff2934380..5c1e93f87 100644
--- a/gui/baculum/protected/API/Portlets/APISideBar.tpl
+++ b/gui/baculum/protected/API/Portlets/APISideBar.tpl
@@ -33,6 +33,7 @@
 		<a href="<%=$this->Service->constructUrl('APIHome')%>" class="w3-bar-item w3-button w3-padding<%=$this->Service->getRequestedPagePath() == 'APIHome' ? ' w3-blue': ''%>"><i class="fas fa-tachometer-alt fa-fw"></i> &nbsp;<%[ Dashboard ]%></a>
 		<a href="<%=$this->Service->constructUrl('APIBasicUsers')%>" class="w3-bar-item w3-button w3-padding<%=$this->Service->getRequestedPagePath() == 'APIBasicUsers' ? ' w3-blue': ''%>"><i class="fa fa-users fa-fw"></i> &nbsp;<%[ Basic users ]%></a>
 		<a href="<%=$this->Service->constructUrl('APIOAuth2Clients')%>" class="w3-bar-item w3-button w3-padding<%=$this->Service->getRequestedPagePath() == 'APIOAuth2Clients' ? ' w3-blue': ''%>"><i class="fa fa-user-shield fa-fw"></i> &nbsp;<%[ OAuth2 clients ]%></a>
+		<a href="<%=$this->Service->constructUrl('APIDevices')%>" class="w3-bar-item w3-button w3-padding<%=$this->Service->getRequestedPagePath() == 'APIDevices' ? ' w3-blue': ''%>"><i class="fa fa-server fa-fw"></i> &nbsp;<%[ Devices ]%></a>
 		<a href="<%=$this->Service->constructUrl('APISettings')%>" class="w3-bar-item w3-button w3-padding<%=$this->Service->getRequestedPagePath() == 'APISettings' ? ' w3-blue': ''%>"><i class="fa fa-wrench fa-fw"></i> &nbsp;<%[ Settings ]%></a>
 		<a href="<%=$this->Service->constructUrl('APIInstallWizard')%>" class="w3-bar-item w3-button w3-padding<%=$this->Service->getRequestedPagePath() == 'APIInstallWizard' ? ' w3-blue': ''%>"><i class="fa fa-hat-wizard fa-fw"></i> &nbsp;<%[ Configuration wizard ]%></a>
 	</div>
diff --git a/gui/baculum/protected/API/Portlets/SudoConfig.php b/gui/baculum/protected/API/Portlets/SudoConfig.php
new file mode 100644
index 000000000..2cb287d97
--- /dev/null
+++ b/gui/baculum/protected/API/Portlets/SudoConfig.php
@@ -0,0 +1,36 @@
+<?php
+/*
+ * Bacula(R) - The Network Backup Solution
+ * Baculum   - Bacula web interface
+ *
+ * Copyright (C) 2013-2021 Kern Sibbald
+ *
+ * The main author of Baculum is Marcin Haba.
+ * The original author of Bacula is Kern Sibbald, with contributions
+ * from many others, a complete list can be found in the file AUTHORS.
+ *
+ * You may use this file and others of this release according to the
+ * license defined in the LICENSE file, which includes the Affero General
+ * Public License, v3.0 ("AGPLv3") and some additional permissions and
+ * terms pursuant to its AGPLv3 Section 7.
+ *
+ * This notice must be preserved when any source code is
+ * conveyed and/or propagated.
+ *
+ * Bacula(R) is a registered trademark of Kern Sibbald.
+ */
+
+Prado::using('System.Web.UI.JuiControls.TJuiDialog');
+Prado::using('Application.Common.Portlets.PortletTemplate');
+
+/**
+ * Sudo config control.
+ * It displays dialog window with sudo config for specific operating systems.
+ *
+ * @author Marcin Haba <marcin.haba@bacula.pl>
+ * @category Control
+ * @package Baculum API
+ */
+class SudoConfig extends PortletTemplate {
+}
+?>
diff --git a/gui/baculum/protected/API/Portlets/SudoConfig.tpl b/gui/baculum/protected/API/Portlets/SudoConfig.tpl
new file mode 100644
index 000000000..1ea10ce3c
--- /dev/null
+++ b/gui/baculum/protected/API/Portlets/SudoConfig.tpl
@@ -0,0 +1,53 @@
+<script>
+var oSudoConfig = {
+	bin_fields: {},
+	bin_opts: {},
+	ids: {
+		dialog: '<%=$this->SudoConfigPopup->ClientID%>'
+	},
+	set_bin_fields: function(bin_fields) {
+		this.bin_fields = bin_fields;
+	},
+	set_bin_opts: function(bin_opts) {
+		this.bin_opts = bin_opts;
+	},
+	get_config: function(type) {
+		var val, pre;
+		var cfg = '';
+		var users = ['apache', 'lighttpd', 'www-data'];
+		var fields = this.bin_fields.hasOwnProperty(type) ? this.bin_fields[type] : [];
+		for (var i = 0; i < users.length; i++) {
+			var pre = document.getElementById('sudo_config_' + users[i].replace(/-/g, '_'));
+			pre.textContent = 'Defaults:' + users[i] + ' !requiretty' + "\n";
+			for (var j = 0; j < fields.length; j++) {
+				val = document.getElementById(fields[j]).value.trim();
+				if (this.bin_opts.hasOwnProperty(type)) {
+					if (this.bin_opts[type].hasOwnProperty('base_path') && this.bin_opts[type].base_path) {
+						val = val.split(' ').shift(); // NOTE: It will not work with paths containing spaces
+					}
+				}
+				if (val) {
+					pre.textContent += users[i] + ' ALL = (root) NOPASSWD: ' + val + "\n";
+				}
+			}
+		}
+		$('#' + this.ids.dialog).dialog('open');
+	}
+};
+</script>
+<com:TJuiDialog
+	ID="SudoConfigPopup"
+	Options.title="<%[ Sudo configuration ]%>"
+	Options.autoOpen="false",
+	Options.minWidth="820"
+	Options.minHeight="200"
+>
+	<p><%[ Please copy appropriate sudo configuration and put it to a new sudoers.d file for example /etc/sudoers.d/baculum-api ]%></p>
+	<p><strong><%[ Note ]%></strong> <%[ Please use visudo to add this configuration, otherwise please do remember to add empty line at the end of file. ]%>
+	<p><%[ Example sudo configuration for Apache web server user (RHEL, CentOS and others): ]%></p>
+	<pre id="sudo_config_apache"></pre>
+	<p><%[ Example sudo configuration for Lighttpd web server user (RHEL, CentOS and others): ]%></p>
+	<pre id="sudo_config_lighttpd"></pre>
+	<p><%[ Example sudo configuration for Apache and Lighttpd web servers user (Debian, Ubuntu and others): ]%></p>
+	<pre id="sudo_config_www_data"></pre>
+</com:TJuiDialog>
diff --git a/gui/baculum/protected/Common/Class/BClientScript.php b/gui/baculum/protected/Common/Class/BClientScript.php
index dc667c763..ce92ed0d5 100644
--- a/gui/baculum/protected/Common/Class/BClientScript.php
+++ b/gui/baculum/protected/Common/Class/BClientScript.php
@@ -31,7 +31,7 @@ Prado::using('System.Web.UI.WebControls.TClientScript');
  */
 class BClientScript extends TClientScript {
 
-	const SCRIPTS_VERSION = 17;
+	const SCRIPTS_VERSION = 18;
 
 	public function getScriptUrl()
 	{
diff --git a/gui/baculum/protected/Common/Class/Errors.php b/gui/baculum/protected/Common/Class/Errors.php
index 828daa6c9..2ac2c2bf2 100644
--- a/gui/baculum/protected/Common/Class/Errors.php
+++ b/gui/baculum/protected/Common/Class/Errors.php
@@ -230,4 +230,21 @@ class OAuth2Error extends GenericError {
 	const MSG_ERROR_OAUTH2_CLIENT_INVALID_CONSOLE = 'Invalid Console name.';
 	const MSG_ERROR_OAUTH2_CLIENT_INVALID_DIRECTOR = 'Invalid Director name.';
 }
+class DeviceError extends GenericError {
+
+	const ERROR_DEVICE_DEVICE_CONFIG_DOES_NOT_EXIST = 130;
+	const ERROR_DEVICE_INVALID_COMMAND = 131;
+	const ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST = 132;
+	const ERROR_DEVICE_AUTOCHANGER_DRIVE_DOES_NOT_EXIST = 132;
+	const ERROR_DEVICE_WRONG_SLOT_NUMBER = 133;
+	const ERROR_DEVICE_DRIVE_DOES_NOT_BELONG_TO_AUTOCHANGER = 134;
+
+	const MSG_ERROR_DEVICE_DEVICE_CONFIG_DOES_NOT_EXIST = 'Device config does not exist.';
+	const MSG_ERROR_DEVICE_INVALID_COMMAND = 'Invalid changer command.';
+	const MSG_ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST = 'Autochanger does not exist.';
+	const MSG_ERROR_DEVICE_AUTOCHANGER_DRIVE_DOES_NOT_EXIST = 'Autochanger drive does not exist.';
+	const MSG_ERROR_DEVICE_WRONG_SLOT_NUMBER = 'Wrong slot number.';
+	const MSG_ERROR_DEVICE_DRIVE_DOES_NOT_BELONG_TO_AUTOCHANGER = 'Drive does not belong to selected autochanger.';
+}
+
 ?>
diff --git a/gui/baculum/protected/Common/Class/OAuth2.php b/gui/baculum/protected/Common/Class/OAuth2.php
index 364c9cefc..485b39403 100644
--- a/gui/baculum/protected/Common/Class/OAuth2.php
+++ b/gui/baculum/protected/Common/Class/OAuth2.php
@@ -84,10 +84,10 @@ abstract class OAuth2 extends CommonModule {
 	/**
 	 * Expiration time in seconds for access token.
 	 * 
-	 * Temportary set to 60 seconds for testst purposes.
+	 * Temportary set to 15 minutes for testst purposes.
 	 * In production the value SHOULD BE changed.
 	 */
-	const ACCESS_TOKEN_EXPIRES_TIME = 60;
+	const ACCESS_TOKEN_EXPIRES_TIME = 90000;
 
 	/**
 	 * Scope pattern.
diff --git a/gui/baculum/protected/Common/JavaScript/misc.js b/gui/baculum/protected/Common/JavaScript/misc.js
index 73f9ae38d..252443cfb 100644
--- a/gui/baculum/protected/Common/JavaScript/misc.js
+++ b/gui/baculum/protected/Common/JavaScript/misc.js
@@ -206,6 +206,7 @@ var OAuth2Scopes = [
 	'directors',
 	'clients',
 	'storages',
+	'devices',
 	'volumes',
 	'pools',
 	'bvfs',
@@ -230,6 +231,17 @@ function copy_to_clipboard(text) {
 	document.body.removeChild(input);
 }
 
+/**
+ * Used to escape values before putting them into regular expression.
+ * Dedicated to use in table values.
+ */
+dtEscapeRegex = function(value) {
+	if (typeof(value) != 'string' && typeof(value.toString) == 'function') {
+		value = value.toString();
+	}
+	return $.fn.dataTable.util.escapeRegex(value);
+};
+
 $(function() {
 	W3SideBar.init();
 	set_global_listeners();
diff --git a/gui/baculum/protected/Web/JavaScript/misc.js b/gui/baculum/protected/Web/JavaScript/misc.js
index 1cb04d4b3..907b866d8 100644
--- a/gui/baculum/protected/Web/JavaScript/misc.js
+++ b/gui/baculum/protected/Web/JavaScript/misc.js
@@ -343,7 +343,11 @@ function render_jobstatus(data, type, row) {
 function render_bytes(data, type, row) {
 	var s;
 	if (type == 'display') {
-		s = Units.get_formatted_size(data)
+		if (/^\d+$/.test(data)) {
+			s = Units.get_formatted_size(data);
+		} else {
+			s = '';
+		}
 	} else {
 		s = data;
 	}
@@ -1105,17 +1109,6 @@ function update_job_table(table_obj, new_data) {
 	table_obj.page(current_page).draw(false);
 }
 
-/**
- * Used to escape values before putting them into regular expression.
- * Dedicated to use in table values.
- */
-dtEscapeRegex = function(value) {
-	if (typeof(value) != 'string' && typeof(value.toString) == 'function') {
-		value = value.toString();
-	}
-	return $.fn.dataTable.util.escapeRegex(value);
-};
-
 /**
  * Do validation comma separated list basing on regular expression
  * for particular values.
@@ -1184,9 +1177,11 @@ function get_table_toolbar(table, actions, txt) {
 			acts[select.value].before();
 		}
 		selected = selected.join('|');
-		acts[select.value].callback.options.RequestTimeOut = 60000; // Timeout set to 1 minute
-		acts[select.value].callback.setCallbackParameter(selected);
-		acts[select.value].callback.dispatch();
+		if (acts[select.value].hasOwnProperty('callback')) {
+			acts[select.value].callback.options.RequestTimeOut = 60000; // Timeout set to 1 minute
+			acts[select.value].callback.setCallbackParameter(selected);
+			acts[select.value].callback.dispatch();
+		}
 	});
 	table_toolbar.appendChild(title);
 	table_toolbar.appendChild(select);
diff --git a/gui/baculum/protected/Web/Lang/en/messages.mo b/gui/baculum/protected/Web/Lang/en/messages.mo
index cd34cb87e..44a01c253 100644
Binary files a/gui/baculum/protected/Web/Lang/en/messages.mo and b/gui/baculum/protected/Web/Lang/en/messages.mo differ
diff --git a/gui/baculum/protected/Web/Lang/en/messages.po b/gui/baculum/protected/Web/Lang/en/messages.po
index ad856d8de..71883eadb 100644
--- a/gui/baculum/protected/Web/Lang/en/messages.po
+++ b/gui/baculum/protected/Web/Lang/en/messages.po
@@ -3208,3 +3208,96 @@ msgstr "Last %errors/%count jobs finished with error."
 
 msgid "All last %count jobs finished successfully."
 msgstr "All last %count jobs finished successfully."
+
+msgid "Drive index"
+msgstr "Drive index"
+
+msgid "Drive name"
+msgstr "Drive name"
+
+msgid "Unload"
+msgstr "Unload"
+
+msgid "Manage autochanger"
+msgstr "Manage autochanger"
+
+msgid "Slot in device"
+msgstr "Slot in device"
+
+msgid "Slot in catalog"
+msgstr "Slot in catalog"
+
+msgid "Load"
+msgstr "Load"
+
+msgid "Load drive"
+msgstr "Load drive"
+
+msgid "index"
+msgstr "index"
+
+msgid "device"
+msgstr "device"
+
+msgid "Drive"
+msgstr "Drive"
+
+msgid "Empty"
+msgstr "Empty"
+
+msgid "In drive %index (%drive)"
+msgstr "In drive %index (%drive)"
+
+msgid "Import/Export"
+msgstr "Import/Export"
+
+msgid "Label using barcodes"
+msgstr "Label using barcodes"
+
+msgid "Move to import/export slot"
+msgstr "Move to import/export slot"
+
+msgid "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+msgstr  "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+
+msgid "Drive index:"
+msgstr "Drive index:"
+
+msgid "Slots"
+msgstr "Slots"
+
+msgid "Release I/E"
+msgstr "Release I/E"
+
+msgid "Move to import/export slots"
+msgstr "Move to import/export slots"
+
+msgid "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+msgstr "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+
+msgid "Import/export slot"
+msgstr "Import/export slot"
+
+msgid "Destination slot"
+msgstr "Destination slot"
+
+msgid "Release import/export slot"
+msgstr "Release import/export slot"
+
+msgid "Tape drives"
+msgstr "Tape drives"
+
+msgid "Changer slots"
+msgstr "Changer slots"
+
+msgid "Release all I/E slots"
+msgstr "Release all I/E slots"
+
+msgid "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+msgstr "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+
+msgid "Tip: To use bulk autochanger actions, please select table rows."
+msgstr "Tip: To use bulk autochanger actions, please select table rows."
+
+msgid "Mount volume"
+msgstr "Mount volume"
diff --git a/gui/baculum/protected/Web/Lang/ja/messages.mo b/gui/baculum/protected/Web/Lang/ja/messages.mo
index fa72c70d8..a039df50c 100644
Binary files a/gui/baculum/protected/Web/Lang/ja/messages.mo and b/gui/baculum/protected/Web/Lang/ja/messages.mo differ
diff --git a/gui/baculum/protected/Web/Lang/ja/messages.po b/gui/baculum/protected/Web/Lang/ja/messages.po
index f69f6561e..3893d5868 100644
--- a/gui/baculum/protected/Web/Lang/ja/messages.po
+++ b/gui/baculum/protected/Web/Lang/ja/messages.po
@@ -3294,3 +3294,96 @@ msgstr "Last %errors/%count jobs finished with error."
 
 msgid "All last %count jobs finished successfully."
 msgstr "All last %count jobs finished successfully."
+
+msgid "Drive index"
+msgstr "Drive index"
+
+msgid "Drive name"
+msgstr "Drive name"
+
+msgid "Unload"
+msgstr "Unload"
+
+msgid "Manage autochanger"
+msgstr "Manage autochanger"
+
+msgid "Slot in device"
+msgstr "Slot in device"
+
+msgid "Slot in catalog"
+msgstr "Slot in catalog"
+
+msgid "Load"
+msgstr "Load"
+
+msgid "Load drive"
+msgstr "Load drive"
+
+msgid "index"
+msgstr "index"
+
+msgid "device"
+msgstr "device"
+
+msgid "Drive"
+msgstr "Drive"
+
+msgid "Empty"
+msgstr "Empty"
+
+msgid "In drive %index (%drive)"
+msgstr "In drive %index (%drive)"
+
+msgid "Import/Export"
+msgstr "Import/Export"
+
+msgid "Label using barcodes"
+msgstr "Label using barcodes"
+
+msgid "Move to import/export slot"
+msgstr "Move to import/export slot"
+
+msgid "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+msgstr  "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+
+msgid "Drive index:"
+msgstr "Drive index:"
+
+msgid "Slots"
+msgstr "Slots"
+
+msgid "Release I/E"
+msgstr "Release I/E"
+
+msgid "Move to import/export slots"
+msgstr "Move to import/export slots"
+
+msgid "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+msgstr "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+
+msgid "Import/export slot"
+msgstr "Import/export slot"
+
+msgid "Destination slot"
+msgstr "Destination slot"
+
+msgid "Release import/export slot"
+msgstr "Release import/export slot"
+
+msgid "Tape drives"
+msgstr "Tape drives"
+
+msgid "Changer slots"
+msgstr "Changer slots"
+
+msgid "Release all I/E slots"
+msgstr "Release all I/E slots"
+
+msgid "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+msgstr "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+
+msgid "Tip: To use bulk autochanger actions, please select table rows."
+msgstr "Tip: To use bulk autochanger actions, please select table rows."
+
+msgid "Mount volume"
+msgstr "Mount volume"
diff --git a/gui/baculum/protected/Web/Lang/pl/messages.mo b/gui/baculum/protected/Web/Lang/pl/messages.mo
index 3ff773a62..3ae9096ce 100644
Binary files a/gui/baculum/protected/Web/Lang/pl/messages.mo and b/gui/baculum/protected/Web/Lang/pl/messages.mo differ
diff --git a/gui/baculum/protected/Web/Lang/pl/messages.po b/gui/baculum/protected/Web/Lang/pl/messages.po
index 4553201b0..64735fd31 100644
--- a/gui/baculum/protected/Web/Lang/pl/messages.po
+++ b/gui/baculum/protected/Web/Lang/pl/messages.po
@@ -3219,3 +3219,95 @@ msgstr "Ostatnie %errors/%count zadań zakończyło się błędem."
 msgid "All last %count jobs finished successfully."
 msgstr "Wszystkie ostatnie %count zadań zakończyło się pomyślnie."
 
+msgid "Drive index"
+msgstr "Indeks napędu"
+
+msgid "Drive name"
+msgstr "Nazwa napędu"
+
+msgid "Unload"
+msgstr "Wyładuj"
+
+msgid "Manage autochanger"
+msgstr "Zarządzaj zmieniarką taśm"
+
+msgid "Slot in device"
+msgstr "Slot w urządzeniu"
+
+msgid "Slot in catalog"
+msgstr "Slot w bazie danych"
+
+msgid "Load"
+msgstr "Załaduj"
+
+msgid "Load drive"
+msgstr "Załaduj napęd"
+
+msgid "index"
+msgstr "indeks"
+
+msgid "device"
+msgstr "urządzenie"
+
+msgid "Drive"
+msgstr "Napęd"
+
+msgid "Empty"
+msgstr "Pusty"
+
+msgid "In drive %index (%drive)"
+msgstr "W napędzie %index (%drive)"
+
+msgid "Import/Export"
+msgstr "Import/Eksport"
+
+msgid "Label using barcodes"
+msgstr "Etykietuj używając kodów kreskowych"
+
+msgid "Move to import/export slot"
+msgstr "Przenieś do slotu import/eksport"
+
+msgid "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+msgstr  "Zarządzanie zmieniarką taśm jest niedostępne. W celu zarządzania zmieniarką taśm z tego miejsce, dodaj ją do urządzeń hosta API po stronie hosta API."
+
+msgid "Drive index:"
+msgstr "Indeks napędu:"
+
+msgid "Slots"
+msgstr "Sloty"
+
+msgid "Release I/E"
+msgstr "Zwolnij I/E"
+
+msgid "Move to import/export slots"
+msgstr "Przenieś do slotów import/eksport"
+
+msgid "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+msgstr "Jest za mało slotów import/eksport do przetrasferowania wybranych wolumenów. Ilość wolnych slotów import/eksport: %slots_count, ilość wybranych wolumenów: %vols_count."
+
+msgid "Import/export slot"
+msgstr "Sloty import/eksport"
+
+msgid "Destination slot"
+msgstr "Docelowy slot"
+
+msgid "Release import/export slot"
+msgstr "Zwolnij slot import/eksport"
+
+msgid "Tape drives"
+msgstr "Napędy taśmowe"
+
+msgid "Changer slots"
+msgstr "Sloty zmieniarki"
+
+msgid "Release all I/E slots"
+msgstr "Zwolnij wszystkie sloty I/E"
+
+msgid "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+msgstr "Jest za mało regularnych slotów do przetrasferowania wybranych wolumenów ze slotów import/eksport. Ilość pełnych slotów import/eksport: %ie_slot_count, ilość wolnych regularnych slotów: %slot_count."
+
+msgid "Tip: To use bulk autochanger actions, please select table rows."
+msgstr "Wskazówka: W celu użycia akcji zbiorczych zmieniarki taśm, proszę zaznaczyć wiersze tabeli."
+
+msgid "Mount volume"
+msgstr "Montuj wolumen"
diff --git a/gui/baculum/protected/Web/Lang/pt/messages.mo b/gui/baculum/protected/Web/Lang/pt/messages.mo
index f5894b7f7..aacd488f7 100644
Binary files a/gui/baculum/protected/Web/Lang/pt/messages.mo and b/gui/baculum/protected/Web/Lang/pt/messages.mo differ
diff --git a/gui/baculum/protected/Web/Lang/pt/messages.po b/gui/baculum/protected/Web/Lang/pt/messages.po
index 057f5c787..f9948d796 100644
--- a/gui/baculum/protected/Web/Lang/pt/messages.po
+++ b/gui/baculum/protected/Web/Lang/pt/messages.po
@@ -3219,3 +3219,95 @@ msgstr "Últimos %errors/%count jobs concluídos com erro."
 msgid "All last %count jobs finished successfully."
 msgstr "Todos os últimos %count jobs foram concluídos com sucesso."
 
+msgid "Drive index"
+msgstr "Drive index"
+
+msgid "Drive name"
+msgstr "Drive name"
+
+msgid "Unload"
+msgstr "Unload"
+
+msgid "Manage autochanger"
+msgstr "Manage autochanger"
+
+msgid "Slot in device"
+msgstr "Slot in device"
+
+msgid "Slot in catalog"
+msgstr "Slot in catalog"
+
+msgid "Load"
+msgstr "Load"
+
+msgid "Load drive"
+msgstr "Load drive"
+
+msgid "index"
+msgstr "index"
+
+msgid "device"
+msgstr "device"
+
+msgid "Drive"
+msgstr "Drive"
+
+msgid "Empty"
+msgstr "Empty"
+
+msgid "In drive %index (%drive)"
+msgstr "In drive %index (%drive)"
+
+msgid "Import/Export"
+msgstr "Import/Export"
+
+msgid "Label using barcodes"
+msgstr "Label using barcodes"
+
+msgid "Move to import/export slot"
+msgstr "Move to import/export slot"
+
+msgid "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+msgstr  "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+
+msgid "Drive index:"
+msgstr "Drive index:"
+
+msgid "Slots"
+msgstr "Slots"
+
+msgid "Release I/E"
+msgstr "Release I/E"
+
+msgid "Move to import/export slots"
+msgstr "Move to import/export slots"
+
+msgid "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+msgstr "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+
+msgid "Import/export slot"
+msgstr "Import/export slot"
+
+msgid "Destination slot"
+msgstr "Destination slot"
+
+msgid "Release import/export slot"
+msgstr "Release import/export slot"
+
+msgid "Tape drives"
+msgstr "Tape drives"
+
+msgid "Changer slots"
+msgstr "Changer slots"
+
+msgid "Release all I/E slots"
+msgstr "Release all I/E slots"
+
+msgid "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+msgstr "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+
+msgid "Tip: To use bulk autochanger actions, please select table rows."
+msgstr "Tip: To use bulk autochanger actions, please select table rows."
+
+msgid "Mount volume"
+msgstr "Mount volume"
diff --git a/gui/baculum/protected/Web/Lang/ru/messages.mo b/gui/baculum/protected/Web/Lang/ru/messages.mo
index ae003a817..7f7d5d2ef 100644
Binary files a/gui/baculum/protected/Web/Lang/ru/messages.mo and b/gui/baculum/protected/Web/Lang/ru/messages.mo differ
diff --git a/gui/baculum/protected/Web/Lang/ru/messages.po b/gui/baculum/protected/Web/Lang/ru/messages.po
index 5006c0da8..0b6922409 100644
--- a/gui/baculum/protected/Web/Lang/ru/messages.po
+++ b/gui/baculum/protected/Web/Lang/ru/messages.po
@@ -3219,3 +3219,95 @@ msgstr "Последнее %errors/%count заданий закончились
 msgid "All last %count jobs finished successfully."
 msgstr "Все последние %count задания успешно завершены."
 
+msgid "Drive index"
+msgstr "Drive index"
+
+msgid "Drive name"
+msgstr "Drive name"
+
+msgid "Unload"
+msgstr "Unload"
+
+msgid "Manage autochanger"
+msgstr "Manage autochanger"
+
+msgid "Slot in device"
+msgstr "Slot in device"
+
+msgid "Slot in catalog"
+msgstr "Slot in catalog"
+
+msgid "Load"
+msgstr "Load"
+
+msgid "Load drive"
+msgstr "Load drive"
+
+msgid "index"
+msgstr "index"
+
+msgid "device"
+msgstr "device"
+
+msgid "Drive"
+msgstr "Drive"
+
+msgid "Empty"
+msgstr "Empty"
+
+msgid "In drive %index (%drive)"
+msgstr "In drive %index (%drive)"
+
+msgid "Import/Export"
+msgstr "Import/Export"
+
+msgid "Label using barcodes"
+msgstr "Label using barcodes"
+
+msgid "Move to import/export slot"
+msgstr "Move to import/export slot"
+
+msgid "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+msgstr  "Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side."
+
+msgid "Drive index:"
+msgstr "Drive index:"
+
+msgid "Slots"
+msgstr "Slots"
+
+msgid "Release I/E"
+msgstr "Release I/E"
+
+msgid "Move to import/export slots"
+msgstr "Move to import/export slots"
+
+msgid "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+msgstr "There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count."
+
+msgid "Import/export slot"
+msgstr "Import/export slot"
+
+msgid "Destination slot"
+msgstr "Destination slot"
+
+msgid "Release import/export slot"
+msgstr "Release import/export slot"
+
+msgid "Tape drives"
+msgstr "Tape drives"
+
+msgid "Changer slots"
+msgstr "Changer slots"
+
+msgid "Release all I/E slots"
+msgstr "Release all I/E slots"
+
+msgid "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+msgstr "There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count."
+
+msgid "Tip: To use bulk autochanger actions, please select table rows."
+msgstr "Tip: To use bulk autochanger actions, please select table rows."
+
+msgid "Mount volume"
+msgstr "Mount volume"
diff --git a/gui/baculum/protected/Web/Pages/StorageView.page b/gui/baculum/protected/Web/Pages/StorageView.page
index ce24a2a4b..b29b26a33 100644
--- a/gui/baculum/protected/Web/Pages/StorageView.page
+++ b/gui/baculum/protected/Web/Pages/StorageView.page
@@ -31,6 +31,13 @@
 			Visible="<%=!empty($_SESSION['sd']) && $this->getIsAutochanger()%>"
 			OnClick="setAutochanger"
 		/>
+		<com:TActiveLinkButton
+			CssClass="w3-bar-item w3-button tab_btn"
+			Attributes.onclick="W3Tabs.open(this.id, 'manage_autochanger');"
+			Text="<%[ Manage autochanger ]%>"
+			Visible="<%=!empty($_SESSION['sd']) && $this->getIsAutochanger()%>"
+			OnCallback="loadAutochanger"
+		/>
 	</div>
 	<div class="w3-container tab_item" id="storage_actions">
 		<com:TValidationSummary
@@ -59,8 +66,7 @@
 			CssClass="w3-button w3-green w3-margin-bottom"
 			ValidationGroup="AutoChangerGroup"
 			CausesValidation="true"
-			ClientSide.OnLoading="$('#status_storage_loading').show();"
-			ClientSide.OnSuccess="$('#status_storage_loading').hide();$('#storage_action_text_output').slideDown();"
+			ClientSide.OnLoading="oStorageActions.show_loader(true);"
 		>
 			<prop:Text><%=Prado::localize('Mount')%> &nbsp;<i class="fa fa-caret-down"></i></prop:Text>
 		</com:TActiveLinkButton>
@@ -70,8 +76,7 @@
 			CssClass="w3-button w3-green w3-margin-bottom"
 			ValidationGroup="AutoChangerGroup"
 			CausesValidation="true"
-			ClientSide.OnLoading="$('#status_storage_loading').show();"
-			ClientSide.OnSuccess="$('#status_storage_loading').hide();$('#storage_action_text_output').slideDown();"
+			ClientSide.OnLoading="oStorageActions.show_loader(true);"
 		>
 			<prop:Text><%=Prado::localize('Release')%> &nbsp;<i class="fa fa-caret-right"></i></prop:Text>
 		</com:TActiveLinkButton>
@@ -81,26 +86,102 @@
 			CssClass="w3-button w3-green w3-margin-bottom"
 			ValidationGroup="AutoChangerGroup"
 			CausesValidation="true"
-			ClientSide.OnLoading="$('#status_storage_loading').show();"
-			ClientSide.OnSuccess="$('#status_storage_loading').hide();$('#storage_action_text_output').slideDown();"
+			ClientSide.OnLoading="oStorageActions.show_loader(true);"
 		>
 			<prop:Text><%=Prado::localize('Umount')%> &nbsp;<i class="fa fa-caret-up"></i></prop:Text>
 		</com:TActiveLinkButton>
+		<com:TCallback ID="MountLoading" OnCallback="mountLoading" />
+		<com:TCallback ID="ReleaseLoading" OnCallback="releaseLoading" />
+		<com:TCallback ID="UmountLoading" OnCallback="umountLoading" />
+		<script>
+var oStorageActions = {
+	ids: {
+		log: 'storage_action_log',
+		log_container: 'storage_action_text_output',
+		loader: 'status_storage_loading'
+	},
+	refresh_mount: function(out_id) {
+		setTimeout(function() {
+			var cb = <%=$this->MountLoading->ActiveControl->Javascript%>;
+			cb.setCallbackParameter(out_id);
+			cb.dispatch();
+		}, 2000);
+	},
+	refresh_release: function(out_id) {
+		setTimeout(function() {
+			var cb = <%=$this->ReleaseLoading->ActiveControl->Javascript%>;
+			cb.setCallbackParameter(out_id);
+			cb.dispatch();
+		}, 2000);
+	},
+	refresh_umount: function(out_id) {
+		setTimeout(function() {
+			var cb = <%=$this->UmountLoading->ActiveControl->Javascript%>;
+			cb.setCallbackParameter(out_id);
+			cb.dispatch();
+		}, 2000);
+	},
+	log: function(output) {
+		var log = document.getElementById(oStorageActions.ids.log);
+		log.textContent = output;
+	},
+	clear_log: function() {
+		document.getElementById(oStorageActions.ids.log_container).style.display = 'none';
+		oStorageActions.log('');
+	},
+	show_loader: function(show) {
+		var loader = document.getElementById(oStorageActions.ids.loader);
+		if (show) {
+			oStorageActions.clear_log();
+			$('#' + oStorageActions.ids.log_container).slideDown();
+			loader.style.display = '';
+		} else {
+			loader.style.display = 'none';
+		}
+	}
+};
+		</script>
 		<i id="status_storage_loading" class="fa fa-sync w3-spin" style="display: none; vertical-align: super;"></i> <span id="status_storage_error" class="w3-text-red" style="display: none"></span>
 		<com:TActivePanel ID="Autochanger" Display="None" Height="61px">
 				<div class="w3-left w3-margin-right">
-						<label><%[ Drive number: ]%></label>
-						<com:TActiveTextBox ID="Drive" AutoPostBack="false" Text="0" MaxLength="3" CssClass="w3-input smallbox" />
-						<com:TDataTypeValidator ID="DriveValidator" ValidationGroup="AutoChangerGroup" ControlToValidate="Drive" ErrorMessage="<%[ Drive number must be integer. ]%>" Display="None" DataType="Integer" />
+					<label><%[ Drive number: ]%></label>
+					<com:TActiveTextBox
+						ID="Drive"
+						AutoPostBack="false"
+						Text="0"
+						MaxLength="3"
+						CssClass="w3-input smallbox"
+					/>
+					<com:TDataTypeValidator
+						ID="DriveValidator"
+						ValidationGroup="AutoChangerGroup"
+						ControlToValidate="Drive"
+						ErrorMessage="<%[ Drive number must be integer. ]%>"
+						Display="None"
+						DataType="Integer"
+					/>
 				</div>
 				<div class="w3-left">
 					<%[ Slot number: ]%>
-					<com:TActiveTextBox ID="Slot" AutoPostBack="false" Text="0" MaxLength="3" CssClass="w3-input smallbox" />
-					<com:TDataTypeValidator ID="SlotValidator" ValidationGroup="AutoChangerGroup" ControlToValidate="Slot" ErrorMessage="<%[ Slot number must be integer. ]%>" Display="None" DataType="Integer" />
+					<com:TActiveTextBox
+						ID="Slot"
+						AutoPostBack="false"
+						Text="0"
+						MaxLength="3"
+						CssClass="w3-input smallbox"
+					/>
+					<com:TDataTypeValidator
+						ID="SlotValidator"
+						ValidationGroup="AutoChangerGroup"
+						ControlToValidate="Slot"
+						ErrorMessage="<%[ Slot number must be integer. ]%>"
+						Display="None"
+						DataType="Integer"
+					/>
 				</div>
 		</com:TActivePanel>
 		<div id="storage_action_text_output" class="w3-code" style="display: none; clear: both;">
-			<pre><com:TActiveLabel ID="StorageActionLog" /></pre>
+			<pre id="storage_action_log"></pre>
 		</div>
 		<div id="status_storage_container" class="w3-clear w3-margin-top" style="display: none">
 			<div class="w3-right w3-margin-top w3-margin-right" title="<%[ To disable refreshing please type 0. ]%>">
@@ -1559,4 +1640,920 @@ MonitorParams = {
 			ShowCancelButton="false"
 		/>
 	</div>
+	<div class="w3-container tab_item" id="manage_autochanger" style="display: none">
+		<div id="manage_autochanger_not_available">
+			<strong><%[ Autochanger management is unavailable. To manage autochanger from here, add it to the API host devices on the API host side. ]%></strong>
+		</div>
+		<div id="drive_list_container">
+			<h5><%[ Tape drives ]%></h5>
+			<table id="drive_list" class="w3-table w3-striped w3-hoverable w3-white w3-margin-bottom" style="width: 100%">
+				<thead>
+					<tr>
+						<th></th>
+						<th><%[ Drive index ]%></th>
+						<th><%[ Drive name ]%></th>
+						<th><%[ Device ]%></th>
+						<th><%[ Volume ]%></th>
+						<th><%[ Slot ]%></th>
+						<th><%[ Actions ]%></th>
+					</tr>
+				</thead>
+				<tbody id="drive_list_body"></tbody>
+				<tfoot>
+					<tr>
+						<th></th>
+						<th><%[ Drive index ]%></th>
+						<th><%[ Drive name ]%></th>
+						<th><%[ Device ]%></th>
+						<th><%[ Volume ]%></th>
+						<th><%[ Slot ]%></th>
+						<th><%[ Actions ]%></th>
+					</tr>
+				</tfoot>
+			</table>
+		</div>
+		<com:TCallback ID="UnloadDrive" OnCallback="unloadDrive" />
+		<com:TCallback ID="UnloadedDrive" OnCallback="unloadedDrive" />
+		<script>
+var oDriveList = {
+	ids: {
+		drive_list: 'drive_list',
+		drive_list_body: 'drive_list_body'
+	},
+	table: null,
+	data: [],
+	init: function() {
+		if (!this.table) {
+			this.set_table();
+		} else {
+			var page = this.table.page();
+			this.table.clear().rows.add(this.data).draw();
+			this.table.page(page).draw(false);
+		}
+	},
+	set_table: function() {
+		this.table = $('#' + this.ids.drive_list).DataTable({
+			data: this.data,
+			deferRender: true,
+			dom: 'lBfrtip',
+			stateSave: true,
+			buttons: [
+				'copy', 'csv', 'colvis'
+			],
+			columns: [
+				{
+					className: 'details-control',
+					orderable: false,
+					data: null,
+					defaultContent: '<button type="button" class="w3-button w3-blue"><i class="fa fa-angle-down"></i></button>'
+				},
+				{data: 'index'},
+				{data: 'drive'},
+				{data: 'device'},
+				{
+					data: 'volume',
+					render: function(data, type, row) {
+						var v = data;
+						if (type == 'display' && row.mediaid > 0) {
+							var a = document.createElement('A');
+							a.href = '/web/volume/' + row.mediaid + '/';
+							var icon = document.createElement('I');
+							icon.className  = 'fa fa-external-link-alt fa-xs';
+							a.appendChild(icon);
+							v += ' ' + a.outerHTML;
+						}
+						return v;
+					}
+				},
+				{data: 'slot_ach'},
+				{
+					data: 'slot_ach',
+					render: function(data, type, row) {
+						var btn = document.createElement('BUTTON');
+						btn.className = 'w3-button w3-green';
+						btn.type = 'button';
+						var i = document.createElement('I');
+						i.className = 'fa fa-upload';
+						var label = document.createTextNode(' <%[ Unload ]%>');
+						btn.appendChild(i);
+						btn.innerHTML += '&nbsp';
+						btn.appendChild(label);
+						btn.setAttribute('onclick', 'oDrives.unload_drive("' + row.drive + '", ' + data + ')');
+						if (data === '')  {
+							btn.style.visibility = 'hidden';
+						}
+						return btn.outerHTML;
+					}
+				}
+			],
+			responsive: {
+				details: {
+					type: 'column'
+				}
+			},
+			columnDefs: [{
+				className: 'control',
+				orderable: false,
+				targets: 0
+			},
+			{
+				className: "dt-center",
+				targets: [ 1, 5, 6 ]
+			}],
+			order: [1, 'asc']
+		});
+	}
+};
+
+var oDrives = {
+	unload_drive_timeout: 300000, // 5 minutes
+	load_drives_cb: function(data) {
+		oDriveList.data = data;
+		oDriveList.init();
+	},
+	unload_drive: function(drive, slot) {
+		var cb = <%=$this->UnloadDrive->ActiveControl->Javascript%>;
+		var param = {
+			drive: drive,
+			slot: slot
+		};
+		cb.setCallbackParameter(param);
+		cb.setRequestTimeOut(this.unload_drive_timeout);
+		cb.dispatch();
+		oSlots.show_changer_loader(true);
+	},
+	set_drive_unloading_output: function(out_id) {
+		var cb = <%=$this->UnloadedDrive->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(out_id);
+		cb.dispatch();
+	},
+	refresh_drive_unloading: function(out_id) {
+		setTimeout(function() {
+			oDrives.set_drive_unloading_output(out_id);
+		}, 2000)
+	}
+};
+		</script>
+		<div id="slot_list_container">
+			<h5 class="w3-show-inline-block"><%[ Changer slots ]%> &nbsp;<i id="changer_loader" class="fas fa-sync-alt w3-spin" style="display: none"></i></h5>
+			<p class="info w3-right"><%[ Tip: To use bulk autochanger actions, please select table rows. ]%></p>
+			<button type="button" id="release_all_ie_btn" class="w3-button w3-green" style="display: none" onclick="oSlots.release_all_ie();">
+				<i class="fas fa-share-square"></i> &nbsp;<%[ Release all I/E slots ]%>
+			</button>
+			<table id="slot_list" class="w3-table w3-striped w3-hoverable w3-white w3-margin-bottom" style="width: 100%">
+				<thead>
+					<tr>
+						<th></th>
+						<th><%[ Slot in device ]%></th>
+						<th><%[ Slot in catalog ]%></th>
+						<th><%[ Volume ]%></th>
+						<th><%[ Vol. status ]%></th>
+						<th><%[ Vol. bytes ]%></th>
+						<th><%[ Pool ]%></th>
+						<th>MediaType</th>
+						<th><%[ Last written ]%></th>
+						<th><%[ When expire ]%></th>
+						<th><%[ Actions ]%></th>
+					</tr>
+				</thead>
+				<tbody id="slot_list_body"></tbody>
+				<tfoot>
+					<tr>
+						<th></th>
+						<th><%[ Slot in device ]%></th>
+						<th><%[ Slot in catalog ]%></th>
+						<th><%[ Volume ]%></th>
+						<th><%[ Vol. status ]%></th>
+						<th><%[ Vol. bytes ]%></th>
+						<th><%[ Pool ]%></th>
+						<th>MediaType</th>
+						<th><%[ Last written ]%></th>
+						<th><%[ When expire ]%></th>
+						<th><%[ Actions ]%></th>
+					</tr>
+				</tfoot>
+			</table>
+			<p class="info w3-hide-medium w3-hide-small"><%[ Tip: Use left-click to select table row. Use CTRL + left-click to multiple row selection. Use SHIFT + left-click to add a range of rows to selection. ]%></p>
+		</div>
+		<com:TCallback ID="LabelUsingBarcodesAction" OnCallback="labelBarcodes" />
+		<com:TCallback ID="UpdateSlotsBarcodesAction" OnCallback="updateSlotsBarcodes" />
+		<com:TCallback ID="UpdateSlotsAction" OnCallback="updateSlots" />
+		<com:TCallback ID="MoveToImportExportSlot" OnCallback="moveToIE" />
+		<com:TCallback ID="MovingToImportExportSlot" OnCallback="movingToIE" />
+		<com:TCallback ID="MoveFromImportExportSlot" OnCallback="moveFromIE" />
+		<com:TCallback ID="MovingFromImportExportSlot" OnCallback="movingFromIE" />
+		<com:TCallback ID="ReleaseImportExportSlot" OnCallback="releaseIE" />
+		<com:TCallback ID="ReleasingImportExportSlot" OnCallback="releasingIE" />
+		<com:Application.Web.Portlets.LabelVolume
+			ID="LabelBarcodes"
+			ShowButton="false"
+			BarcodeLabel="true"
+			Storage="<%=$this->StorageName%>"
+			OnLabelStart="showChangerLoading"
+			OnLabelComplete="loadAutochanger"
+			OnLabelSuccess="hideChangerLoading"
+			OnLabelFail="hideChangerLoading"
+		/>
+		<com:Application.Web.Portlets.UpdateSlots
+			ID="UpdateSlots"
+			ShowButton="false"
+			Storage="<%=$this->StorageName%>"
+			OnUpdateStart="showChangerLoading"
+			OnUpdateComplete="loadAutochanger"
+			OnUpdateSuccess="hideChangerLoading"
+			OnUpdateFail="hideChangerLoading"
+		/>
+		<com:TActiveHiddenField ID="IESlots" />
+		<script>
+var oSlotList = {
+	table_toolbar: null,
+	actions: [
+		{
+			action: 'label',
+			label: '<%[ Label using barcodes ]%>',
+			value: 'slot_ach',
+			callback: <%=$this->LabelUsingBarcodesAction->ActiveControl->Javascript%>,
+			before: function() {
+				show_label_volume_window(true);
+			}
+		},
+		{
+			action: 'move_to_ie',
+			label: '<%[ Move to import/export slot ]%>',
+			value: 'slot_ach',
+			before: function() {
+				oSlots.show_move_to_ie_window(true);
+			},
+			validate: function(selected) {
+				oSlots.set_move_to_ie_slots();
+				var ie_slots = oSlots.get_slots(['ie_slot'], ['E']);
+				var ie_slots_count = ie_slots.length;
+				var vols_count =  oSlots.move_to_ie_slots.length;
+				if (vols_count > ie_slots_count) {
+					var emsg = '<%[ There are to few import/export slots to transfer selected volumes. Free import/export slots count: %slots_count, selected volumes count: %vols_count. ]%>';
+					emsg = emsg.replace('%slots_count', ie_slots_count);
+					emsg = emsg.replace('%vols_count', vols_count);
+					oBulkActionsModal.set_error(emsg);
+					return false;
+				}
+				return true;
+			}
+		},
+		{
+			action: 'update_barcodes',
+			label: '<%[ Update slots using barcodes ]%>',
+			value: 'slot_ach',
+			callback: <%=$this->UpdateSlotsBarcodesAction->ActiveControl->Javascript%>,
+			before: function() {
+				set_update_slots_barcodes(true);
+				show_update_slots_window(true);
+			}
+		},
+		{
+			action: 'update',
+			label: '<%[ Update slots ]%>',
+			value: 'slot_ach',
+			callback: <%=$this->UpdateSlotsAction->ActiveControl->Javascript%>,
+			before: function() {
+				set_update_slots(true);
+				show_update_slots_window(true);
+			}
+		}
+	],
+	ids: {
+		slot_list: 'slot_list',
+		slot_list_body: 'slot_list_body',
+		release_all_ie_btn: 'release_all_ie_btn'
+	},
+	table: null,
+	data: [],
+	init: function() {
+		if (!this.table) {
+			this.set_table();
+			this.set_bulk_actions();
+			this.init_release_all_ie_btn();
+			this.set_events();
+		} else {
+			var page = this.table.page();
+			this.table.clear().rows.add(this.data).draw();
+			this.table.page(page).draw(false);
+		}
+		oSlots.init();
+		this.set_release_all_ie_btn();
+	},
+	set_events: function() {
+		document.getElementById(this.ids.slot_list).addEventListener('click', function(e) {
+			$(function() {
+				this.table_toolbar.style.display = this.table.rows({selected: true}).data().length > 0 ? '' : 'none';
+			}.bind(this));
+		}.bind(this));
+	},
+	set_table: function() {
+		this.table = $('#' + this.ids.slot_list).DataTable({
+			data: this.data,
+			pageLength: 100,
+			deferRender: true,
+			dom: 'lB<"table_toolbar">frtip',
+			stateSave: true,
+			buttons: [
+				'copy', 'csv', 'colvis'
+			],
+			columns: [
+				{
+					className: 'details-control',
+					orderable: false,
+					data: null,
+					defaultContent: '<button type="button" class="w3-button w3-blue"><i class="fa fa-angle-down"></i></button>'
+				},
+				{data: 'slot_ach'},
+				{data: 'slot_cat'},
+				{
+					data: 'volume',
+					render: function(data, type, row) {
+						var v = data;
+						var link = '';
+						if (!row.slot_cat) {
+							for (var i = 0; i < oDriveList.data.length; i++) {
+								if (row.slot_ach === oDriveList.data[i].slot_ach) {
+									v = '<%[ In drive %index (%drive) ]%>';
+									v = v.replace('%index', oDriveList.data[i].index);
+									v = v.replace('%drive', oDriveList.data[i].drive);
+									break;
+								}
+							}
+						}
+						if (type == 'display' && row.mediaid > 0) {
+							var a = document.createElement('A');
+							a.href = '/web/volume/' + row.mediaid + '/';
+							var icon = document.createElement('I');
+							icon.className  = 'fa fa-external-link-alt fa-xs';
+							a.appendChild(icon);
+							link = ' ' + a.outerHTML;
+						}
+						if (!data && !v) {
+							if (row.state == 'F') {
+								v = '<%[ Full ]%>';
+							} else if (row.state == 'E') {
+								v = '<%[ Empty ]%>';
+							}
+						}
+						return (v + link);
+					}
+				},
+				{data: 'volstatus'},
+				{
+					data: 'volbytes',
+					render: render_bytes
+				},
+				{data: 'pool'},
+				{data: 'mediatype'},
+				{
+					data: 'lastwritten',
+					render: render_date
+				},
+				{
+					data: 'whenexpire',
+					render: render_date_ex
+				},
+				{
+					data: 'slot_ach',
+					render: function(data, type, row) {
+						var ret = '';
+						if (row.type == 'ie_slot')  {
+							if (row.state === 'F') {
+								var clear_io = document.createElement('BUTTON');
+								clear_io.className = 'w3-button w3-green';
+								clear_io.type = 'button';
+								var i = document.createElement('I');
+								i.className = 'fa fa-sign-out-alt';
+								var label = document.createTextNode(' <%[ Release I/E ]%>');
+								clear_io.appendChild(i);
+								clear_io.innerHTML += '&nbsp';
+								clear_io.appendChild(label);
+								clear_io.setAttribute('onclick', 'oSlots.release_ie_window(' + data + ');');
+								ret = clear_io.outerHTML;
+							} else {
+								ret = '<%[ Import/Export ]%>';
+							}
+						} else {
+							var load_btn = document.createElement('BUTTON');
+							load_btn.className = 'w3-button w3-green';
+							load_btn.type = 'button';
+							var i = document.createElement('I');
+							i.className = 'fa fa-download';
+							var label = document.createTextNode(' <%[ Load ]%>');
+							load_btn.appendChild(i);
+							load_btn.innerHTML += '&nbsp';
+							load_btn.appendChild(label);
+							load_btn.setAttribute('onclick', 'oSlots.load_drive_window(' + data + ');');
+							if (row.state === 'E')  {
+								load_btn.style.visibility = 'hidden';
+							}
+							ret = load_btn.outerHTML;
+						}
+						return ret;
+					}
+				}
+			],
+			responsive: {
+				details: {
+					type: 'column'
+				}
+			},
+			columnDefs: [{
+				className: 'control',
+				orderable: false,
+				targets: 0
+			},
+			{
+				className: "dt-right",
+				targets: [ 5 ]
+			},
+			{
+				className: "dt-center",
+				targets: [ 1, 2, 4 ]
+			}],
+			select: {
+				style:    'os',
+				selector: 'td:not(:last-child):not(:first-child)',
+				blurable: false
+			},
+			order: [1, 'asc']
+		});
+	},
+	set_bulk_actions: function() {
+		this.table_toolbar = get_table_toolbar(this.table, this.actions, {
+			actions: '<%[ Actions ]%>',
+			ok: '<%[ OK ]%>'
+		});
+	},
+	init_release_all_ie_btn: function() {
+		var btn = document.getElementById(this.ids.release_all_ie_btn);
+		var toolbar = document.querySelector('#' + this.ids.slot_list + '_wrapper div.dt-buttons');
+		toolbar.appendChild(btn);
+	},
+	show_release_all_ie_btn: function(show) {
+		var btn = document.getElementById(this.ids.release_all_ie_btn);
+		if (show) {
+			btn.style.display = '';
+		}  else {
+			btn.style.display = 'none';
+		}
+	},
+	set_release_all_ie_btn: function() {
+		var full = oSlots.get_slots(['ie_slot'], ['F']);
+		if (full.length > 0) {
+			this.show_release_all_ie_btn(true);
+		} else {
+			this.show_release_all_ie_btn(false);
+		}
+	}
+};
+
+var oSlots = {
+	ids: {
+		load_drive_window: 'load_drive_window',
+		load_drive_drives: 'load_drive_drives',
+		load_drive_out: 'load_drive_out',
+		load_drive_loading: 'load_drive_loading',
+		load_drive_slot: 'load_drive_slot',
+		move_to_ie_window: 'move_to_ie_window',
+		move_to_ie_slots: 'move_to_ie_slots',
+		move_to_ie_window_log: 'move_to_ie_window_log',
+		move_to_ie_loading: 'move_to_ie_loading',
+		release_ie_window: 'release_ie_window',
+		release_ie_slot: 'release_ie_slot',
+		release_ie_loading: 'release_ie_loading',
+		release_ie_window_log: 'release_ie_window_log',
+		release_ie_dest_slot: 'release_ie_dest_slot',
+		changer_loader: 'changer_loader'
+	},
+	load_drive_timeout: 300000, // 5 minutes
+	move_to_ie_timeout: 300000, // 5 minutes
+	move_from_ie_timeout: 300000, // 5 minutes
+	release_ie_timeout: 300000, // 5 minutes
+	slot: null,
+	ie_slot: null,
+	empty_slots: [],
+	full_slots: [],
+	empty_ie_slots: [],
+	full_ie_slots: [],
+	move_to_ie_slots: [],
+	free_ie_slots: [],
+	init: function() {
+		this.set_slots();
+	},
+	set_slots: function() {
+		this.empty_slots = this.get_slots(['slot'], ['E']);
+		this.full_slots = this.get_slots(['slot'], ['F']);
+		this.empty_ie_slots = this.get_slots(['ie_slot'], ['F']);
+		this.full_ie_slots = this.get_slots(['ie_slot'], ['F']);
+	},
+	load_slots_cb: function(data) {
+		oSlotList.data = data;
+		oSlotList.init();
+	},
+	load_drive_window: function(slot) {
+		this.slot = slot;
+		this.prepare_drive_list();
+		this.show_load_drive_window(true);
+	},
+	prepare_drive_list: function() {
+		var sel = document.getElementById(this.ids.load_drive_drives);
+		while(sel.firstChild) {
+			sel.removeChild(sel.firstChild);
+		}
+		var opt, text, label, state;
+		for (var i = 0; i < oDriveList.data.length; i++) {
+			opt = document.createElement('OPTION');
+			opt.value = oDriveList.data[i].drive;
+			if (oDriveList.data[i].state === 'F') {
+				opt.setAttribute('disabled', 'disabled');
+				state = '[<%[ Full ]%>] ';
+			} else if (oDriveList.data[i].state === 'E') {
+				state = '[<%[ Empty ]%>] ';
+			}
+			text = state + oDriveList.data[i].drive + ' (<%[ index ]%>: ' + oDriveList.data[i].index + ', <%[ device ]%>: ' + oDriveList.data[i].device + ')';
+			label = document.createTextNode(text);
+			opt.appendChild(label);
+			sel.appendChild(opt);
+		}
+	},
+	show_load_drive_window: function(show) {
+		this.set_load_drive_window_slot();
+		var win = document.getElementById(oSlots.ids.load_drive_window);
+		if (show) {
+			win.style.display = 'block';
+		} else {
+			win.style.display = 'none';
+		}
+	},
+	set_load_drive_window_slot: function() {
+		document.getElementById(this.ids.load_drive_slot).textContent  = this.slot;
+	},
+	load_drive_loading: function(show) {
+		var loader = document.getElementById(oSlots.ids.load_drive_loading);
+		if (show) {
+			loader.style.visibility = 'visible';
+		} else {
+			loader.style.visibility = 'hidden';
+		}
+	},
+	set_drive_window_ok: function() {
+		oSlots.load_drive_loading(false);
+		oSlots.show_load_drive_window(false);
+	},
+	load_drive: function() {
+		var sel = document.getElementById(this.ids.load_drive_drives);
+		var cb = <%=$this->LoadDrive->ActiveControl->Javascript%>;
+		if (!sel.value) {
+			// no free tape drive available
+			return false;
+		}
+		var param = {
+			drive: sel.value,
+			slot: this.slot
+		};
+		cb.setCallbackParameter(param);
+		cb.setRequestTimeOut(this.load_drive_timeout);
+		cb.dispatch();
+		this.show_changer_loader(true);
+		this.load_drive_loading(true);
+	},
+	set_drive_with_mount_loading_output: function(out_id) {
+		var cb = <%=$this->LoadedDriveWithMount->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(out_id);
+		cb.dispatch();
+	},
+	refresh_drive_with_mount_loading: function(out_id) {
+		setTimeout(function() {
+			oSlots.set_drive_with_mount_loading_output(out_id);
+		}, 2000)
+	},
+	set_drive_without_mount_loading_output: function(out_id) {
+		var cb = <%=$this->LoadedDriveWithoutMount->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(out_id);
+		cb.dispatch();
+	},
+	refresh_drive_without_mount_loading: function(out_id) {
+		setTimeout(function() {
+			oSlots.set_drive_without_mount_loading_output(out_id);
+		}, 2000)
+	},
+	get_slots: function(types, states) {
+		if (!states) {
+			states = ['E', 'F'];
+		}
+		if (!types) {
+			types = ['slot', 'ie_slot']
+		}
+		var ie_slots = [];
+		for (var i = 0; i < oSlotList.data.length; i++) {
+			if (types.indexOf(oSlotList.data[i].type) != -1 && states.indexOf(oSlotList.data[i].state) != -1) {
+				ie_slots.push(oSlotList.data[i].slot_ach);
+			}
+		}
+		return ie_slots;
+	},
+	set_ie_slots: function() {
+		this.free_ie_slots = oSlots.get_slots(['ie_slot'], ['E']);
+	},
+	show_move_to_ie_window: function(show) {
+		this.set_ie_slots();
+		this.set_move_to_ie_slots();
+		this.move_to_ie_loading(false);
+		var win = document.getElementById(oSlots.ids.move_to_ie_window);
+		if (show) {
+			win.style.display = 'block';
+		} else {
+			win.style.display = 'none';
+		}
+	},
+	set_move_to_ie_slots: function() {
+		var slots = [];
+		var selected = oSlotList.table.rows({selected: true}).data();
+		for (var i = 0; i < selected.length; i++) {
+			if (selected[i].state == 'F') {
+				slots.push(selected[i].slot_ach);
+			}
+		}
+		this.move_to_ie_slots = slots;
+		document.getElementById(this.ids.move_to_ie_slots).textContent = slots.join(',');
+	},
+	move_to_ie_loading: function(show) {
+		var loader = document.getElementById(oSlots.ids.move_to_ie_loading);
+		if (show) {
+			loader.style.visibility = 'visible';
+		} else {
+			loader.style.visibility = 'hidden';
+		}
+	},
+	move_to_ie: function() {
+		var slot = oSlots.move_to_ie_slots.shift();
+		var ie_slot = oSlots.free_ie_slots.shift();
+		if (slot && ie_slot) {
+			oSlots.move_to_ie_loading(true);
+			var param = [slot, ie_slot].join(',');
+			var cb = <%=$this->MoveToImportExportSlot->ActiveControl->Javascript%>;
+			cb.setCallbackParameter(param);
+			cb.RequestTimeOut = oSlots.move_to_ie_timeout;
+			cb.dispatch();
+			oSlots.show_changer_loader(true);
+		} else if (!slot) {
+			oSlots.show_move_to_ie_window(false);
+			oSlotList.set_release_all_ie_btn();
+		} else if (!ie_slot) {
+			// There is not enough import/export slots to transfer all selected tapes.
+			// It shouldn't happen.
+		}
+	},
+	set_move_to_ie_log: function(log) {
+		var logbox = document.getElementById(oSlots.ids.move_to_ie_window_log);
+		if (log && logbox.style.display == 'none') {
+			logbox.style.display = 'block';
+		}
+		logbox.getElementsByTagName('PRE')[0].textContent = log;
+	},
+	set_move_to_ie_output: function(out_id) {
+		var cb = <%=$this->MovingToImportExportSlot->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(out_id);
+		cb.dispatch();
+	},
+	refresh_move_to_ie_loading: function(out_id) {
+		setTimeout(function() {
+			oSlots.set_move_to_ie_output(out_id);
+		}, 2000)
+	},
+	show_release_ie_window: function(show) {
+		var win = document.getElementById(oSlots.ids.release_ie_window);
+		if (show) {
+			oSlots.release_ie_loading(false);
+			oSlots.set_release_ie_log('');
+			win.style.display = 'block';
+		} else {
+			win.style.display = 'none';
+		}
+	},
+	set_release_ie_window_slot: function() {
+		document.getElementById(this.ids.release_ie_slot).textContent  = this.ie_slot;
+	},
+	release_ie_loading: function(show) {
+		var loader = document.getElementById(oSlots.ids.release_ie_loading);
+		if (show) {
+			loader.style.visibility = 'visible';
+		} else {
+			loader.style.visibility = 'hidden';
+		}
+	},
+	release_ie_window: function(slot) {
+		this.ie_slot = slot;
+		this.prepare_release_ie();
+		this.set_release_ie_window_slot();
+		this.show_release_ie_window(true);
+	},
+	prepare_release_ie: function() {
+		var sel = document.getElementById(this.ids.release_ie_dest_slot);
+		while(sel.firstChild) {
+			sel.removeChild(sel.firstChild);
+		}
+		var opt, text, label, state;
+		for (var i = 0; i < oSlotList.data.length; i++) {
+			opt = document.createElement('OPTION');
+			opt.value = oSlotList.data[i].slot_ach;
+			if (oSlotList.data[i].state === 'F') {
+				opt.setAttribute('disabled', 'disabled');
+				state = '[<%[ Full ]%>] ';
+			} else if (oSlotList.data[i].state === 'E') {
+				state = '[<%[ Empty ]%>] ';
+			}
+			text = state + '<%[ Slot ]%>: ' + oSlotList.data[i].slot_ach;
+			label = document.createTextNode(text);
+			opt.appendChild(label);
+			sel.appendChild(opt);
+		}
+	},
+	release_ie: function(finish) {
+		var sel = document.getElementById(oSlots.ids.release_ie_dest_slot);
+		if (oSlots.ie_slot && sel.value && !finish) {
+			oSlots.release_ie_loading(true);
+			var param = [oSlots.ie_slot, sel.value].join(',');
+			var cb = <%=$this->ReleaseImportExportSlot->ActiveControl->Javascript%>;
+			cb.setCallbackParameter(param);
+			cb.RequestTimeOut = oSlots.release_ie_timeout;
+			cb.dispatch();
+			oSlots.show_changer_loader(true);
+		} else if (finish) {
+			oSlots.show_release_ie_window(false);
+			oSlotList.set_release_all_ie_btn();
+		}
+	},
+	set_release_ie_log: function(log) {
+		var logbox = document.getElementById(oSlots.ids.release_ie_window_log);
+		if (log && logbox.style.display == 'none') {
+			logbox.style.display = 'block';
+		}
+		logbox.getElementsByTagName('PRE')[0].textContent = log;
+	},
+	set_release_ie_output: function(out_id) {
+		var cb = <%=$this->ReleasingImportExportSlot->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(out_id);
+		cb.dispatch();
+	},
+	refresh_release_ie_loading: function(out_id) {
+		setTimeout(function() {
+			oSlots.set_release_ie_output(out_id);
+		}, 2000)
+	},
+	release_all_ie: function() {
+		var fie_len = oSlots.full_ie_slots.length;
+		var es_len = oSlots.empty_slots.length;
+		if  (fie_len > es_len) {
+			var emsg = '<%[ There are to few regular slots to transfer selected volumes from import/export slots. Full import/export slot count: %ie_slot_count, free regular slot count: %slot_count. ]%>';
+			emsg = emsg.replace('%ie_slot_count', fie_len);
+			emsg = emsg.replace('%slot_count', es_len);
+			oBulkActionsModal.set_error(emsg);
+			return false;
+		}
+		var ie_slot = oSlots.full_ie_slots.shift()
+		var slot = oSlots.empty_slots.shift();
+
+		if (slot && ie_slot) {
+			var param = [ie_slot, slot].join(',');
+			var cb = <%=$this->MoveFromImportExportSlot->ActiveControl->Javascript%>;
+			cb.setCallbackParameter(param);
+			cb.RequestTimeOut = oSlots.move_from_ie_timeout;
+			cb.dispatch();
+			oSlots.show_changer_loader(true);
+		} else if (!slot) {
+			oSlotList.set_release_all_ie_btn();
+		}
+	},
+	set_release_all_ie_output: function(out_id) {
+		var cb = <%=$this->MovingFromImportExportSlot->ActiveControl->Javascript%>;
+		cb.setCallbackParameter(out_id);
+		cb.dispatch();
+	},
+	refresh_release_all_ie_loading: function(out_id) {
+		setTimeout(function() {
+			oSlots.set_release_all_ie_output(out_id);
+		}, 2000)
+	},
+	show_changer_loader: function(show) {
+		var loader = document.getElementById(oSlots.ids.changer_loader);
+		if (show) {
+			loader.style.display = '';
+		} else {
+			loader.style.display = 'none';
+		}
+	}
+};
+		</script>
+		<com:TCallback ID="LoadDrive" OnCallback="loadDrive" />
+		<com:TCallback ID="LoadedDriveWithoutMount" OnCallback="loadedDriveWithoutMount" />
+		<com:TCallback ID="LoadedDriveWithMount" OnCallback="loadedDriveWithMount" />
+		<div id="load_drive_window" class="w3-modal">
+			<div class="w3-modal-content w3-animate-top w3-card-4">
+				<header class="w3-container w3-teal">
+					<span onclick="oSlots.show_load_drive_window(false);" class="w3-button w3-display-topright">&times;</span>
+					<h2><%[ Load drive ]%></h2>
+				</header>
+				<div class="w3-container w3-margin-left w3-margin-right w3-margin-top w3-text-teal">
+					<div class="w3-row w3-section">
+						<div class="w3-col w3-third">
+							<%[ Slot ]%>:
+						</div>
+						<div class="w3-col w3-half">
+							<strong id="load_drive_slot"></strong>
+						</div>
+					</div>
+					<div class="w3-row w3-section">
+						<div class="w3-col w3-third">
+							<label for="load_drive_drives"><%[ Drive ]%>:</label>
+						</div>
+						<div class="w3-col w3-half">
+							<select id="load_drive_drives" class="w3-select w3-border"></select>
+						</div>
+					</div>
+					<div class="w3-row w3-section">
+						<div class="w3-col w3-third">
+							<label for="load_drive_mount"><%[ Mount volume ]%>:</label>
+						</div>
+						<div class="w3-col w3-half">
+							<com:TActiveCheckBox ID="LoadDriveMount" CssClass="w3-check" Checked="true" />
+						</div>
+					</div>
+				</div>
+				<footer class="w3-container w3-center w3-padding">
+					<button type="button" class="w3-button w3-red" onclick="oSlots.show_load_drive_window(false);"><i class="fas fa-times"></i> &nbsp;<%[ Cancel ]%></button>
+					<button type="button" class="w3-button w3-green w3-show-inline-block" onclick="oSlots.load_drive();"><i class="fas fa-download"></i> &nbsp;<%[ Load drive ]%></button>
+					<i id="load_drive_loading" class="fas fa-sync-alt fa-spin" style="visibility: hidden"></i>
+				</footer>
+			</div>
+		</div>
+		<div id="move_to_ie_window" class="w3-modal">
+			<div class="w3-modal-content w3-animate-top w3-card-4">
+				<header class="w3-container w3-teal">
+					<span onclick="oSlots.show_move_to_ie_window(false);" class="w3-button w3-display-topright">&times;</span>
+					<h2><%[ Move to import/export slot ]%></h2>
+				</header>
+				<div class="w3-container w3-margin-left w3-margin-right w3-margin-top w3-text-teal">
+					<div class="w3-row w3-section">
+						<div class="w3-col w3-third">
+							<%[ Slots ]%>:
+						</div>
+						<div class="w3-col w3-half">
+							<strong id="move_to_ie_slots"></strong>
+						</div>
+					</div>
+				</div>
+				<footer class="w3-container w3-center w3-padding">
+					<button type="button" class="w3-button w3-red" onclick="oSlots.show_move_to_ie_window(false);"><i class="fas fa-times"></i> &nbsp;<%[ Cancel ]%></button>
+					<button type="button" class="w3-button w3-green w3-show-inline-block" onclick="oSlots.move_to_ie();"><i class="fas fa-download"></i> &nbsp;<%[ Move to import/export slots ]%></button>
+					<i id="move_to_ie_loading" class="fas fa-sync-alt fa-spin" style="visibility: hidden"></i>
+				</footer>
+				<div class="w3-margin-left w3-margin-right" style="max-height: 400px; overflow-x: auto;">
+					<div id="move_to_ie_window_log" class="w3-code" style="display: none">
+						<pre></pre>
+					</div>
+				</div>
+			</div>
+		</div>
+		<div id="release_ie_window" class="w3-modal">
+			<div class="w3-modal-content w3-animate-top w3-card-4">
+				<header class="w3-container w3-teal">
+					<span onclick="oSlots.show_release_ie_window(false);" class="w3-button w3-display-topright">&times;</span>
+					<h2><%[ Release import/export slot ]%></h2>
+				</header>
+				<div class="w3-container w3-margin-left w3-margin-right w3-margin-top w3-text-teal">
+					<div class="w3-row w3-section">
+						<div class="w3-col w3-third">
+							<%[ Import/export slot ]%>:
+						</div>
+						<div class="w3-col w3-half">
+							<strong id="release_ie_slot"></strong>
+						</div>
+					</div>
+					<div class="w3-row w3-section">
+						<div class="w3-col w3-third">
+							<label for="release_ie_dest_slot"><%[ Destination slot ]%>:</label>
+						</div>
+						<div class="w3-col w3-half">
+							<select id="release_ie_dest_slot" class="w3-select w3-border"></select>
+						</div>
+					</div>
+				</div>
+				<footer class="w3-container w3-center w3-padding">
+					<button type="button" class="w3-button w3-red" onclick="oSlots.show_release_ie_window(false);"><i class="fas fa-times"></i> &nbsp;<%[ Cancel ]%></button>
+					<button type="button" class="w3-button w3-green w3-show-inline-block" onclick="oSlots.release_ie();"><i class="fas fa-download"></i> &nbsp;<%[ Release I/E ]%></button>
+					<i id="release_ie_loading" class="fas fa-sync-alt fa-spin" style="visibility: hidden"></i>
+				</footer>
+				<div class="w3-margin-left w3-margin-right" style="max-height: 400px; overflow-x: auto;">
+					<div id="release_ie_window_log" class="w3-code" style="display: none">
+						<pre></pre>
+					</div>
+				</div>
+			</div>
+		</div>
+	</div>
+	<com:Application.Web.Portlets.BulkActionsModal ID="BulkActions" />
 </com:TContent>
diff --git a/gui/baculum/protected/Web/Pages/StorageView.php b/gui/baculum/protected/Web/Pages/StorageView.php
index 084eed46f..cc3a96b89 100644
--- a/gui/baculum/protected/Web/Pages/StorageView.php
+++ b/gui/baculum/protected/Web/Pages/StorageView.php
@@ -26,6 +26,7 @@ Prado::using('System.Web.UI.ActiveControls.TActiveTextBox');
 Prado::using('System.Web.UI.ActiveControls.TActiveRepeater');
 Prado::using('System.Web.UI.ActiveControls.TActiveLinkButton');
 Prado::using('Application.Common.Class.Params');
+Prado::using('Application.Common.Class.Errors');
 Prado::using('Application.Web.Class.BaculumWebPage'); 
 
 /**
@@ -77,7 +78,6 @@ class StorageView extends BaculumWebPage {
 		$storageshow = $this->Application->getModule('api')->get(
 			array('storages', $storage->storageid, 'show')
 		)->output;
-		$this->StorageActionLog->Text = implode(PHP_EOL, $storageshow);
 		$this->setStorageDevice($storageshow);
 		$this->setDevices();
 	}
@@ -257,57 +257,211 @@ class StorageView extends BaculumWebPage {
 		$this->getCallbackClient()->callClientFunction('init_graphical_storage_status', [$storage_status]);
 	}
 
+	private function actionLoading($result, $out_id, $refresh_func) {
+		$messages_log = $this->getModule('messages_log');
+		if ($result->error === 0) {
+			$rlen = count($result->output);
+			$last = $rlen > 0 ? trim($result->output[$rlen-1]) : '';
+			if ($last === 'quit') {
+				array_pop($result->output);
+			}
+			$messages_log->append($result->output);
+			if (count($result->output) > 0) {
+				// log messages
+				$output = implode('', $result->output);
+				$this->getCallbackClient()->callClientFunction(
+					'oStorageActions.log',
+					[$output]
+				);
+				// refresh output periodically
+				$this->getCallbackClient()->callClientFunction(
+					$refresh_func,
+					[$out_id]
+				);
+			} else {
+				$this->getCallbackClient()->callClientFunction(
+					'oStorageActions.show_loader',
+					[false]
+				);
+			}
+		} else {
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$messages_log->append($result->output);
+			$this->getCallbackClient()->callClientFunction(
+				'oStorageActions.log',
+				[$emsg]
+			);
+		}
+	}
+
+	private function logActionError($result) {
+		$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+		$messages_log->append($result->output);
+		$this->getCallbackClient()->callClientFunction(
+			'oStorageActions.log',
+			[$emsg]
+		);
+	}
+
 	public function mount($sender, $param) {
 		$drive = $this->getIsAutochanger() ? intval($this->Drive->Text) : 0;
 		$slot = $this->getIsAutochanger() ? intval($this->Slot->Text) : 0;
+		$result = $this->mountAction($drive, $slot);
+		if ($result->error === 0 && count($result->output) == 1) {
+			$out = json_decode($result->output[0]);
+			if (is_object($out) && property_exists($out, 'out_id')) {
+				$this->getCallbackClient()->callClientFunction(
+					'oStorageActions.refresh_mount',
+					[$out->out_id]
+				);
+			}
+		} else {
+		}
+	}
+
+	private function mountAction($drive, $slot) {
 		$params = [
 			'drive' => $drive,
 			'slot' => $slot
 		];
 		$query = '?' . http_build_query($params);
-		$mount = $this->getModule('api')->get(
-			array('storages', $this->getStorageId(), 'mount', $query)
+		$result = $this->getModule('api')->set(
+			[
+				'storages',
+				$this->getStorageId(),
+				'mount',
+				$query
+			]
+		);
+		return $result;
+	}
+
+	public function mountLoading($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$parameters = [
+			'out_id' => $out_id
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->get([
+			'storages',
+			$this->getStorageId(),
+			'mount',
+			$query
+		]);
+		$this->actionLoading(
+			$result,
+			$out_id,
+			'oStorageActions.refresh_mount'
 		);
-		if ($mount->error === 0) {
-			$this->StorageActionLog->Text = implode(PHP_EOL, $mount->output);
-		} else {
-			$this->StorageActionLog->Text = $mount->output;
-		}
 	}
 
 	public function umount($sender, $param) {
 		$drive = $this->getIsAutochanger() ? intval($this->Drive->Text) : 0;
+		$result = $this->umountAction($drive);
+		if ($result->error === 0) {
+			if (count($result->output) == 1) {
+				$out = json_decode($result->output[0]);
+				if (is_object($out) && property_exists($out, 'out_id')) {
+					$this->getCallbackClient()->callClientFunction(
+						'oStorageActions.refresh_umount',
+						[$out->out_id]
+					);
+				}
+			}
+		} else {
+			$this->logActionError($result);
+		}
+	}
+
+	private function umountAction($drive) {
 		$params = [
 			'drive' => $drive
 		];
 		$query = '?' . http_build_query($params);
-		$umount = $this->getModule('api')->get(
-			array('storages', $this->getStorageId(), 'umount', $query)
+		$result = $this->getModule('api')->set(
+			[
+				'storages',
+				$this->getStorageId(),
+				'umount',
+				$query
+			]
 		);
-		if ($umount->error === 0) {
-			$this->StorageActionLog->Text = implode(PHP_EOL, $umount->output);
-		} else {
-			$this->StorageActionLog->Text = $umount->output;
-		}
+		return $result;
+	}
 
+	public function umountLoading($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$parameters = [
+			'out_id' => $out_id
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->get([
+			'storages',
+			$this->getStorageId(),
+			'umount',
+			$query
+		]);
+		$this->actionLoading(
+			$result,
+			$out_id,
+			'oStorageActions.refresh_umount'
+		);
 	}
 
 	public function release($sender, $param) {
 		$drive = $this->getIsAutochanger() ? intval($this->Drive->Text) : 0;
+		$result = $this->releaseAction($drive);
+		if ($result->error === 0) {
+			if (count($result->output) == 1) {
+				$out = json_decode($result->output[0]);
+				if (is_object($out) && property_exists($out, 'out_id')) {
+					$this->getCallbackClient()->callClientFunction(
+						'oStorageActions.refresh_release',
+						[$out->out_id]
+					);
+				}
+			}
+		} else {
+			$this->logActionError($result);
+		}
+	}
+
+	private function releaseAction($drive) {
 		$params = [
 			'drive' => $drive
 		];
 		$query = '?' . http_build_query($params);
-		$release = $this->getModule('api')->get(
-			array('storages', $this->getStorageId(), 'release', $query)
+		$result = $this->getModule('api')->set(
+			[
+				'storages',
+				$this->getStorageId(),
+				'release',
+				$query
+			]
 		);
-		if ($release->error === 0) {
-			$this->StorageActionLog->Text = implode(PHP_EOL, $release->output);
-		} else {
-			$this->StorageActionLog->Text = $release->output;
-		}
+		return $result;
 	}
 
+	public function releaseLoading($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$parameters = [
+			'out_id' => $out_id
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->get([
+			'storages',
+			$this->getStorageId(),
+			'release',
+			$query
+		]);
+		$this->actionLoading(
+			$result,
+			$out_id,
+			'oStorageActions.refresh_release'
+		);
+	}
+
+
 	public function setAutochanger($sender, $param) {
 		if ($this->getIsAutochanger()) {
 			$this->AutochangerConfig->setComponentName($_SESSION['sd']);
@@ -323,5 +477,512 @@ class StorageView extends BaculumWebPage {
 		$this->StorageConfig->setLoadValues(true);
 		$this->StorageConfig->raiseEvent('OnDirectiveListLoad', $this, null);
 	}
+
+	public function loadAutochanger($sender, $param) {
+		$result = $this->getModule('api')->get([
+			'devices',
+			$this->getDeviceName(),
+			'listall'
+		]);
+		$cb = $this->getCallbackClient();
+		if ($result->error === 0) {
+			$cb->show('drive_list_container');
+			$cb->show('slot_list_container');
+			$cb->hide('manage_autochanger_not_available');
+			$cb->callClientFunction(
+				'oDrives.load_drives_cb',
+				[$result->output->drives]
+			);
+			$slots = array_merge(
+				$result->output->slots,
+				$result->output->ie_slots
+			);
+			$cb->callClientFunction(
+				'oSlots.load_slots_cb',
+				[$slots]
+			);
+		} elseif ($result->error === DeviceError::ERROR_DEVICE_DEVICE_CONFIG_DOES_NOT_EXIST || $result->error === DeviceError::ERROR_DEVICE_AUTOCHANGER_DOES_NOT_EXIST) {
+			$cb->hide('drive_list_container');
+			$cb->hide('slot_list_container');
+			$cb->show('manage_autochanger_not_available');
+		}
+	}
+
+	public function loadDrive($sender, $param) {
+		$data = $param->getCallbackParameter();
+		if (!is_object($data)) {
+			return;
+		}
+		$result = [];
+		if ($this->LoadDriveMount->Checked) {
+			$parameters = [
+				'device' => $data->drive,
+				'slot' => $data->slot
+			];
+			$query = '?' . http_build_query($parameters);
+			$result = $this->getModule('api')->set([
+				'storages',
+				$this->getStorageId(),
+				'mount',
+				$query
+			]);
+		} else {
+			$parameters = [
+				'drive' => $data->drive,
+				'slot' => $data->slot
+			];
+			$query = '?' . http_build_query($parameters);
+			$result = $this->getModule('api')->set([
+				'devices',
+				$this->getDeviceName(),
+				'load',
+				$query
+			]);
+		}
+		if ($result->error === 0) {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.set_drive_window_ok'
+			);
+			$out_id = '';
+			if ($this->LoadDriveMount->Checked) {
+				if (count($result->output) == 1) {
+					$out = json_decode($result->output[0]);
+					if (is_object($out) && property_exists($out, 'out_id')) {
+						$out_id = $out->out_id;
+					}
+				}
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.refresh_drive_with_mount_loading',
+					[$out_id]
+				);
+			} else {
+				$out_id = $result->output->out_id;
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.refresh_drive_without_mount_loading',
+					[$out_id]
+				);
+			}
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$this->getModule('messages_log')->append([$emsg]);
+		}
+	}
+
+	public function loadedDriveWithMount($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$parameters = [
+			'out_id' => $out_id
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->get([
+			'storages',
+			$this->getStorageId(),
+			'mount',
+			$query
+		]);
+		$this->loadedDrive(
+			'oSlots.refresh_drive_with_mount_loading',
+			$out_id,
+			$result
+		);
+	}
+
+	public function loadedDriveWithoutMount($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$parameters = [
+			'out_id' => $out_id
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->get([
+			'devices',
+			$this->getDeviceName(),
+			'load',
+			$query
+		]);
+		$this->loadedDrive(
+			'oSlots.refresh_drive_without_mount_loading',
+			$out_id,
+			$result
+		);
+	}
+
+	public function loadedDrive($refresh_func, $out_id, $result) {
+		$messages_log = $this->getModule('messages_log');
+		if ($result->error === 0) {
+			$rlen = count($result->output);
+			$last = $rlen > 0 ? trim($result->output[$rlen-1]) : '';
+			if ($last === 'quit') {
+				array_pop($result->output);
+			}
+			$messages_log->append($result->output);
+		} else {
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$messages_log->append($result->output);
+		}
+		if ($result->error === 0) {
+			if (count($result->output) > 0) {
+				// refresh output periodically
+				$this->getCallbackClient()->callClientFunction(
+					$refresh_func,
+					[$out_id]
+				);
+			} else {
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.show_changer_loader',
+					[false]
+				);
+				// finish refreshing output
+				$this->loadAutochanger(null, null);
+			}
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$this->getModule('messages_log')->append([$emsg]);
+		}
+	}
+
+	public function unloadDrive($sender, $param) {
+		$data = $param->getCallbackParameter();
+		if (!is_object($data)) {
+			return;
+		}
+		$parameters = [
+			'device' => $data->drive,
+			'slot' => $data->slot
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->set([
+			'storages',
+			$this->getStorageId(),
+			'release',
+			$query
+		]);
+		if ($result->error === 0) {
+			$out_id = '';
+			if (count($result->output) == 1) {
+				$out = json_decode($result->output[0]);
+				if (is_object($out) && property_exists($out, 'out_id')) {
+					$out_id = $out->out_id;
+				}
+			}
+			$this->getCallbackClient()->callClientFunction(
+				'oDrives.refresh_drive_unloading',
+				[$out_id]
+			);
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$this->getModule('messages_log')->append([$emsg]);
+		}
+	}
+
+	public function unloadedDrive($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$parameters = [
+			'out_id' => $out_id
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->get([
+			'storages',
+			$this->getStorageId(),
+			'release',
+			$query
+		]);
+		$messages_log = $this->getModule('messages_log');
+		if ($result->error === 0) {
+			$rlen = count($result->output);
+			$last = $rlen > 0 ? trim($result->output[$rlen-1]) : '';
+			if ($last === 'quit') {
+				array_pop($result->output);
+			}
+			$messages_log->append($result->output);
+			if (count($result->output) > 0) {
+				// refresh output periodically
+				$this->getCallbackClient()->callClientFunction(
+					'oDrives.refresh_drive_unloading',
+					[$out_id]
+				);
+			} else {
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.show_changer_loader',
+					[false]
+				);
+				// finish refreshing output
+				$this->loadAutochanger(null, null);
+			}
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$messages_log->append($result->output);
+		}
+	}
+
+	public function labelBarcodes($sender, $param) {
+		$slots_ach = explode('|', $param->getCallbackParameter());
+		$this->LabelBarcodes->setSlots($slots_ach);
+		$this->LabelBarcodes->loadValues();
+	}
+
+	public function labelComplete($sender, $param) {
+		$this->getCallbackClient()->callClientFunction(
+			'show_label_volume_window',
+			[false]
+		);
+		$this->getCallbackClient()->callClientFunction(
+			'oSlots.show_changer_loader',
+			[false]
+		);
+		$this->loadAutochanger(null, null);
+	}
+
+	private function transferSlots($slotsrc, $slotdest) {
+		$parameters = [
+			'slotsrc' => $slotsrc,
+			'slotdest' => $slotdest
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->set([
+			'devices',
+			$this->getDeviceName(),
+			'transfer',
+			$query
+		]);
+		return $result;
+	}
+
+	private function getTransferOutput($out_id) {
+		$parameters = [
+			'out_id' => $out_id
+		];
+		$query = '?' . http_build_query($parameters);
+		$result = $this->getModule('api')->get([
+			'devices',
+			$this->getDeviceName(),
+			'transfer',
+			$query
+		]);
+		return $result;
+	}
+
+	public function moveToIE($sender, $param) {
+		list($slot_ach, $ie_slot) = explode(',', $param->getCallbackParameter(), 2);
+		$result = $this->transferSlots($slot_ach, $ie_slot);
+		if ($result->error === 0) {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.refresh_move_to_ie_loading',
+				[$result->output->out_id]
+			);
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$this->getModule('messages_log')->append([$emsg]);
+		}
+	}
+
+	public function movingToIE($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$result = $this->getTransferOutput($out_id);
+		$messages_log = $this->getModule('messages_log');
+		if ($result->error === 0) {
+			if (count($result->output) > 0) {
+				// refresh output periodically
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.refresh_move_to_ie_loading',
+					[$out_id]
+				);
+				$rlen = count($result->output);
+				$last = $rlen > 0 ? trim($result->output[$rlen-1]) : '';
+				if ($last === 'quit') {
+					array_pop($result->output);
+				}
+				$messages_log->append($result->output);
+				$out = implode(PHP_EOL, $result->output);
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.set_move_to_ie_log',
+					[$out]
+				);
+			} else {
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.show_changer_loader',
+					[false]
+				);
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.move_to_ie'
+				);
+				// finish refreshing output
+				$this->loadAutochanger(null, null);
+			}
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$messages_log->append($result->output);
+		}
+	}
+
+	public function releaseIE($sender, $param) {
+		list($ie_slot, $slot_ach) = explode(',', $param->getCallbackParameter(), 2);
+		$result = $this->transferSlots($ie_slot, $slot_ach);
+		if ($result->error === 0) {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.refresh_release_ie_loading',
+				[$result->output->out_id]
+			);
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$this->getModule('messages_log')->append([$emsg]);
+		}
+	}
+
+	public function releasingIE($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$result = $this->getTransferOutput($out_id);
+		$messages_log = $this->getModule('messages_log');
+		if ($result->error === 0) {
+			if (count($result->output) > 0) {
+				// refresh output periodically
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.refresh_release_ie_loading',
+					[$out_id]
+				);
+				$rlen = count($result->output);
+				$last = $rlen > 0 ? trim($result->output[$rlen-1]) : '';
+				if ($last === 'quit') {
+					array_pop($result->output);
+				}
+				$messages_log->append($result->output);
+				$out = implode(PHP_EOL, $result->output);
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.set_release_ie_log',
+					[$out]
+				);
+			} else {
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.show_changer_loader',
+					[false]
+				);
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.release_ie',
+					[true]
+				);
+
+				// finish refreshing output
+				$this->loadAutochanger(null, null);
+			}
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$messages_log->append($result->output);
+		}
+	}
+
+	public function updateSlotsBarcodes($sender, $param) {
+		$slots_ach = explode('|', $param->getCallbackParameter());
+		$this->UpdateSlots->BarcodeUpdate = true;
+		$this->UpdateSlots->setSlots($slots_ach);
+		$this->UpdateSlots->loadValues();
+	}
+
+	public function updateSlots($sender, $param) {
+		$slots_ach = explode('|', $param->getCallbackParameter());
+		$this->UpdateSlots->BarcodeUpdate = false;
+		$this->UpdateSlots->setSlots($slots_ach);
+		$this->UpdateSlots->loadValues();
+	}
+
+	public function moveFromIE($sender, $param) {
+		list($ie_slot, $slot_ach) = explode(',', $param->getCallbackParameter(), 2);
+		$result = $this->transferSlots($ie_slot, $slot_ach);
+		if ($result->error === 0) {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.refresh_release_all_ie_loading',
+				[$result->output->out_id]
+			);
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$this->getModule('messages_log')->append([$emsg]);
+		}
+	}
+
+	public function movingFromIE($sender, $param) {
+		$out_id = $param->getCallbackParameter();
+		$result = $this->getTransferOutput($out_id);
+		$messages_log = $this->getModule('messages_log');
+		if ($result->error === 0) {
+			if (count($result->output) > 0) {
+				// refresh output periodically
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.refresh_release_all_ie_loading',
+					[$out_id]
+				);
+				$rlen = count($result->output);
+				$last = $rlen > 0 ? trim($result->output[$rlen-1]) : '';
+				if ($last === 'quit') {
+					array_pop($result->output);
+				}
+				$messages_log->append($result->output);
+			} else {
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.show_changer_loader',
+					[false]
+				);
+				$this->getCallbackClient()->callClientFunction(
+					'oSlots.release_all_ie'
+				);
+				// finish refreshing output
+				$this->loadAutochanger(null, null);
+			}
+		} else {
+			$this->getCallbackClient()->callClientFunction(
+				'oSlots.show_changer_loader',
+				[false]
+			);
+			$emsg = sprintf('Error %s: %s', $result->error, $result->output);
+			$messages_log->append($result->output);
+		}
+	}
+
+	public function showChangerLoading($sender, $param) {
+		$this->getCallbackClient()->callClientFunction(
+			'oSlots.show_changer_loader',
+			[true]
+		);
+	}
+
+	public function hideChangerLoading($sender, $param) {
+		$this->getCallbackClient()->callClientFunction(
+			'oSlots.show_changer_loader',
+			[false]
+		);
+	}
 }
 ?>
diff --git a/gui/baculum/protected/Web/Portlets/LabelVolume.php b/gui/baculum/protected/Web/Portlets/LabelVolume.php
index 21c7e98fb..27f3d3320 100644
--- a/gui/baculum/protected/Web/Portlets/LabelVolume.php
+++ b/gui/baculum/protected/Web/Portlets/LabelVolume.php
@@ -3,7 +3,7 @@
  * Bacula(R) - The Network Backup Solution
  * Baculum   - Bacula web interface
  *
- * Copyright (C) 2013-2019 Kern Sibbald
+ * Copyright (C) 2013-2021 Kern Sibbald
  *
  * The main author of Baculum is Marcin Haba.
  * The original author of Bacula is Kern Sibbald, with contributions
@@ -36,6 +36,10 @@ Prado::using('Application.Web.Portlets.Portlets');
  */
 class LabelVolume extends Portlets {
 
+	const SHOW_BUTTON = 'ShowButton';
+	const BARCODE_LABEL = 'BarcodeLabel';
+	const STORAGE = 'Storage';
+
 	public function loadValues() {
 		$storages = $this->getModule('api')->get(array('storages'));
 		$storage_list = array();
@@ -44,7 +48,11 @@ class LabelVolume extends Portlets {
 				$storage_list[$storage->storageid] = $storage->name;
 			}
 		}
-		$this->StorageLabel->dataSource = $storage_list;
+		$this->StorageLabel->DataSource = $storage_list;
+		if ($this->Storage) {
+			$storage_list_flip =array_flip($storage_list);
+			$this->StorageLabel->SelectedValue = $storage_list_flip[$this->Storage];
+		}
 		$this->StorageLabel->dataBind();
 
 		$pools = $this->Application->getModule('api')->get(array('pools'));
@@ -60,7 +68,7 @@ class LabelVolume extends Portlets {
 
 	public function labelVolumes($sender, $param) {
 		$result = null;
-		if ($this->Barcodes->Checked == true) {
+		if ($this->Barcodes->Checked || $this->BarcodeLabel) {
 			$params = array(
 				'slots' => $this->SlotsLabel->Text,
 				'drive' => $this->DriveLabel->Text,
@@ -95,8 +103,10 @@ class LabelVolume extends Portlets {
 		if ($result->error === 0) {
 			$this->getPage()->getCallbackClient()->callClientFunction('set_labeling_status', array('loading'));
 			$this->LabelVolumeLog->Text = implode('', $result->output);
+			$this->onLabelStart($param);
 		} else {
 			$this->LabelVolumeLog->Text = $result->output;
+			$this->onLabelFail($param);
 		}
 	}
 
@@ -129,10 +139,60 @@ class LabelVolume extends Portlets {
 				$this->getPage()->getCallbackClient()->callClientFunction('label_volume_output_refresh', array($out_id));
 			} else {
 				$this->getPage()->getCallbackClient()->callClientFunction('set_labeling_status', array('finish'));
+				$this->onLabelSuccess($param);
+				$this->onLabelComplete($param);
 			}
 		} else {
 			$this->LabelVolumeLog->Text = $result->output;
+			$this->onLabelFail($param);
+			$this->onLabelComplete($param);
 		}
 	}
+
+	public function onLabelStart($param) {
+		$this->raiseEvent('OnLabelStart', $this, $param);
+	}
+
+	public function onLabelComplete($param) {
+		$this->raiseEvent('OnLabelComplete', $this, $param);
+	}
+
+	public function onLabelSuccess($param) {
+		$this->raiseEvent('OnLabelSuccess', $this, $param);
+	}
+
+	public function onLabelFail($param) {
+		$this->raiseEvent('OnLabelFail', $this, $param);
+	}
+
+	public function setSlots(array $slots) {
+		$this->SlotsLabel->Text = implode(',', $slots);
+	}
+
+	public function setShowButton($show) {
+		$show = TPropertyValue::ensureBoolean($show);
+		$this->setViewState(self::SHOW_BUTTON, $show);
+	}
+
+	public function getShowButton() {
+		return $this->getViewState(self::SHOW_BUTTON, true);
+	}
+
+	public function setBarcodeLabel($barcode_label) {
+		$barcode_label = TPropertyValue::ensureBoolean($barcode_label);
+		$this->setViewState(self::BARCODE_LABEL, $barcode_label);
+	}
+
+	public function getBarcodeLabel() {
+		return $this->getViewState(self::BARCODE_LABEL);
+	}
+
+	public function setStorage($storage) {
+		$this->setViewState(self::STORAGE, $storage);
+	}
+
+	public function getStorage() {
+		return $this->getViewState(self::STORAGE);
+	}
 }
 ?>
diff --git a/gui/baculum/protected/Web/Portlets/LabelVolume.tpl b/gui/baculum/protected/Web/Portlets/LabelVolume.tpl
index 0c5e78d29..c8ecd2ff9 100644
--- a/gui/baculum/protected/Web/Portlets/LabelVolume.tpl
+++ b/gui/baculum/protected/Web/Portlets/LabelVolume.tpl
@@ -1,14 +1,10 @@
 <com:TActiveLinkButton
 	CssClass="w3-button w3-green"
 	OnClick="loadValues"
+	Visible="<%=$this->ShowButton%>"
 >
 	<prop:Attributes.onclick>
-		var logbox = document.getElementById('<%=$this->LabelVolumeLog->ClientID%>');
-		logbox.innerHTML = '';
-		var logbox_container = document.getElementById('label_volume_log');
-		logbox_container.style.display = 'none';
-		set_labeling_status('start');
-		document.getElementById('label_volume').style.display = 'block';
+		show_label_volume_window(true);
 	</prop:Attributes.onclick>
 	<i class="fa fa-tag"></i> &nbsp;<%[ Label volume(s) ]%>
 </com:TActiveLinkButton>
@@ -16,7 +12,7 @@
 <div id="label_volume" class="w3-modal">
 	<div class="w3-modal-content w3-animate-top w3-card-4">
 		<header class="w3-container w3-teal"> 
-			<span onclick="document.getElementById('label_volume').style.display='none'" class="w3-button w3-display-topright">&times;</span>
+			<span onclick="show_label_volume_window(false);" class="w3-button w3-display-topright">&times;</span>
 			<h2><%[ Label volume(s) ]%></h2>
 		</header>
 		<div class="w3-padding">
@@ -56,7 +52,7 @@
 			/>
 			<div class="w3-row-padding w3-section-padding w3-section">
 				<div class="w3-col w3-half"><com:TLabel ForControl="Barcodes" Text="<%[ Use barcodes as label: ]%>" /></div>
-				<div class="w3-col w3-half"><com:TActiveCheckBox ID="Barcodes" CssClass="w3-check" Attributes.onclick="set_barcodes();"/></div>
+				<div class="w3-col w3-half"><com:TActiveCheckBox ID="Barcodes" CssClass="w3-check" Attributes.onclick="set_label_volume_barcodes();"/></div>
 			</div>
 			<div id="label_with_name" class="w3-row-padding w3-section">
 				<div class="w3-col w3-half"><com:TLabel ForControl="LabelName" Text="<%[ Label name: ]%>" /></div>
@@ -94,12 +90,12 @@
 				<div class="w3-col w3-half"><com:TLabel ForControl="PoolLabel" Text="<%[ Pool: ]%>" /></div>
 				<div class="w3-col w3-half"><com:TActiveDropDownList ID="PoolLabel" CssClass="w3-select w3-border" /></div>
 			</div>
-			<div class="w3-row-padding w3-section">
+			<div class="w3-row-padding w3-section"<%=$this->Storage ? ' style="display: none"' : ''%>>
 				<div class="w3-col w3-half"><com:TLabel ForControl="StorageLabel" Text="<%[ Storage: ]%>" /></div>
 				<div class="w3-col w3-half"><com:TActiveDropDownList ID="StorageLabel" CssClass="w3-select w3-border" /></div>
 			</div>
 			<div class="w3-row-padding w3-section">
-				<div class="w3-col w3-half"><com:TLabel ForControl="DriveLabel" Text="<%[ Drive number: ]%>" /></div>
+				<div class="w3-col w3-half"><com:TLabel ForControl="DriveLabel" Text="<%[ Drive index: ]%>" /></div>
 				<div class="w3-col w3-half">
 					<com:TActiveTextBox ID="DriveLabel" CssClass="w3-input w3-border" Text="0" />
 					<com:TRequiredFieldValidator
@@ -140,7 +136,7 @@
 				</div>
 			</div>
 			<div class="w3-container w3-center w3-section">
-				<button type="button" class="w3-button w3-red" onclick="document.getElementById('label_volume').style.display='none';"><i class="fa fa-times"></i> &nbsp;<%[ Close ]%></button>
+				<button type="button" class="w3-button w3-red" onclick="show_label_volume_window(false);"><i class="fa fa-times"></i> &nbsp;<%[ Close ]%></button>
 				<com:TActiveLinkButton
 					ID="LabelButton"
 					CausesValidation="true"
@@ -184,8 +180,12 @@
 </com:TCallback>
 <script type="text/javascript">
 var label_volume_logbox_scroll = false;
-function set_barcodes() {
+function set_label_volume_barcodes(force_barcodes) {
 	var chkb = document.getElementById('<%=$this->Barcodes->ClientID%>');
+	if (force_barcodes) {
+		chkb.checked = true;
+		chkb.setAttribute('disabled', 'disabled');
+	}
 	var name_el = document.getElementById('label_with_name');
 	var with_barcodes_el = document.getElementById('label_with_barcodes');
 	var without_barcodes_el = document.getElementById('label_without_barcodes');
@@ -230,4 +230,15 @@ function set_label_volume_output(out_id) {
 	cb.setCallbackParameter(out_id);
 	cb.dispatch();
 }
+
+function show_label_volume_window(show) {
+	var logbox = document.getElementById('<%=$this->LabelVolumeLog->ClientID%>');
+	logbox.innerHTML = '';
+	var logbox_container = document.getElementById('label_volume_log');
+	logbox_container.style.display = 'none';
+	set_labeling_status('start');
+	document.getElementById('label_volume').style.display = show ? 'block' : 'none';
+}
+
+<%=$this->getBarcodeLabel() ? 'set_label_volume_barcodes(true);' : ''%>
 </script>
diff --git a/gui/baculum/protected/Web/Portlets/UpdateSlots.php b/gui/baculum/protected/Web/Portlets/UpdateSlots.php
index 4a9b0b7bf..0247415df 100644
--- a/gui/baculum/protected/Web/Portlets/UpdateSlots.php
+++ b/gui/baculum/protected/Web/Portlets/UpdateSlots.php
@@ -3,7 +3,7 @@
  * Bacula(R) - The Network Backup Solution
  * Baculum   - Bacula web interface
  *
- * Copyright (C) 2013-2019 Kern Sibbald
+ * Copyright (C) 2013-2021 Kern Sibbald
  *
  * The main author of Baculum is Marcin Haba.
  * The original author of Bacula is Kern Sibbald, with contributions
@@ -35,6 +35,10 @@ Prado::using('Application.Web.Portlets.Portlets');
  */
 class UpdateSlots extends Portlets {
 
+	const SHOW_BUTTON = 'ShowButton';
+	const BARCODE_UPDATE = 'BarcodeUpdate';
+	const STORAGE = 'Storage';
+
 	public function loadValues() {
 		$storages = $this->getModule('api')->get(array('storages'));
 		$storage_list = array();
@@ -43,13 +47,17 @@ class UpdateSlots extends Portlets {
 				$storage_list[$storage->storageid] = $storage->name;
 			}
 		}
-		$this->StorageUpdate->dataSource = $storage_list;
+		$this->StorageUpdate->DataSource = $storage_list;
+		if ($this->Storage) {
+			$storage_list_flip =array_flip($storage_list);
+			$this->StorageUpdate->SelectedValue = $storage_list_flip[$this->Storage];
+		}
 		$this->StorageUpdate->dataBind();
 	}
 
 	public function update($sender, $param) {
 		$url_params = array();
-		if($this->Barcodes->Checked == true) {
+		if($this->Barcodes->Checked == true || $this->BarcodeUpdate) {
 			$url_params = array('volumes', 'update', 'barcodes');
 		} else {
 			$url_params = array('volumes', 'update');
@@ -69,11 +77,14 @@ class UpdateSlots extends Portlets {
 				$this->getPage()->getCallbackClient()->callClientFunction('update_slots_output_refresh', array($out->out_id));
 			}
 		}
+
 		if ($result->error === 0) {
 			$this->getPage()->getCallbackClient()->callClientFunction('set_updating_status', array('loading'));
 			$this->UpdateSlotsLog->Text = implode('', $result->output);
+			$this->onUpdateStart($param);
 		} else {
 			$this->UpdateSlotsLog->Text = $result->output;
+			$this->onUpdateFail($param);
 		}
 	}
 
@@ -106,10 +117,59 @@ class UpdateSlots extends Portlets {
 				$this->getPage()->getCallbackClient()->callClientFunction('update_slots_output_refresh', array($out_id));
 			} else {
 				$this->getPage()->getCallbackClient()->callClientFunction('set_updating_status', array('finish'));
+				$this->onUpdateSuccess($param);
+				$this->onUpdateComplete($param);
 			}
 		} else {
 			$this->UpdateSlotsLog->Text = $result->output;
+			$this->onUpdateFail($param);
+			$this->onUpdateComplete($param);
 		}
 	}
+	public function onUpdateStart($param) {
+		$this->raiseEvent('OnUpdateStart', $this, $param);
+	}
+
+	public function onUpdateComplete($param) {
+		$this->raiseEvent('OnUpdateComplete', $this, $param);
+	}
+
+	public function onUpdateSuccess($param) {
+		$this->raiseEvent('OnUpdateSuccess', $this, $param);
+	}
+
+	public function onUpdateFail($param) {
+		$this->raiseEvent('OnUpdateFail', $this, $param);
+	}
+
+	public function setSlots(array $slots) {
+		$this->SlotsUpdate->Text = implode(',', $slots);
+	}
+
+	public function setShowButton($show) {
+		$show = TPropertyValue::ensureBoolean($show);
+		$this->setViewState(self::SHOW_BUTTON, $show);
+	}
+
+	public function getShowButton() {
+		return $this->getViewState(self::SHOW_BUTTON, true);
+	}
+
+	public function setBarcodeUpdate($barcode_update) {
+		$barcode_update = TPropertyValue::ensureBoolean($barcode_update);
+		$this->setViewState(self::BARCODE_UPDATE, $barcode_update);
+	}
+
+	public function getBarcodeUpdate() {
+		return $this->getViewState(self::BARCODE_UPDATE);
+	}
+
+	public function setStorage($storage) {
+		$this->setViewState(self::STORAGE, $storage);
+	}
+
+	public function getStorage() {
+		return $this->getViewState(self::STORAGE);
+	}
 }
 ?>
diff --git a/gui/baculum/protected/Web/Portlets/UpdateSlots.tpl b/gui/baculum/protected/Web/Portlets/UpdateSlots.tpl
index aaca9d07a..36d5c9000 100644
--- a/gui/baculum/protected/Web/Portlets/UpdateSlots.tpl
+++ b/gui/baculum/protected/Web/Portlets/UpdateSlots.tpl
@@ -1,14 +1,9 @@
 <com:TActiveLinkButton
 	CssClass="w3-button w3-green"
 	OnClick="loadValues"
+	Visible="<%=$this->ShowButton%>"
 >
 	<prop:Attributes.onclick>
-		var logbox = document.getElementById('<%=$this->UpdateSlotsLog->ClientID%>');
-		logbox.innerHTML = '';
-		var logbox_container = document.getElementById('update_slots_log');
-		logbox_container.style.display = 'none';
-		set_updating_status('start');
-		document.getElementById('update_slots').style.display = 'block';
 	</prop:Attributes.onclick>
 	<i class="fa fa-retweet"></i> &nbsp;<%[ Update slots ]%>
 </com:TActiveLinkButton>
@@ -48,9 +43,9 @@
 			/>
 			<div class="w3-row-padding w3-section-padding w3-section">
 				<div class="w3-col w3-half"><com:TLabel ForControl="Barcodes" Text="<%[ Update slots using barcodes ]%>" /></div>
-				<div class="w3-col w3-half"><com:TActiveCheckBox ID="Barcodes" CssClass="w3-check" Checked="true" /></div>
+				<div class="w3-col w3-half"><com:TActiveCheckBox ID="Barcodes" CssClass="w3-check" Checked="true" Attributes.onclick="set_update_slots_barcodes();" /></div>
 			</div>
-			<div class="w3-row-padding w3-section">
+			<div class="w3-row-padding w3-section"<%=$this->Storage ? ' style="display: none"' : ''%>>
 				<div class="w3-col w3-half"><com:TLabel ForControl="StorageUpdate" Text="<%[ Storage: ]%>" /></div>
 				<div class="w3-col w3-half"><com:TActiveDropDownList ID="StorageUpdate" CssClass="w3-select w3-border" /></div>
 			</div>
@@ -135,6 +130,20 @@
 </com:TCallback>
 <script type="text/javascript">
 var update_slots_logbox_scroll = false;
+function set_update_slots_barcodes(force_barcodes) {
+	var chkb = document.getElementById('<%=$this->Barcodes->ClientID%>');
+	if (force_barcodes) {
+		chkb.checked = true;
+		chkb.setAttribute('disabled', 'disabled');
+	}
+}
+function set_update_slots(force) {
+	var chkb = document.getElementById('<%=$this->Barcodes->ClientID%>');
+	if (force) {
+		chkb.checked = false;
+		chkb.setAttribute('disabled', 'disabled');
+	}
+}
 function set_updating_status(status) {
 	var start = document.getElementById('update_slots_status_start');
 	var loading = document.getElementById('update_slots_status_loading');
@@ -165,4 +174,13 @@ function set_update_slots_output(out_id) {
 	cb.setCallbackParameter(out_id);
 	cb.dispatch();
 }
+function show_update_slots_window() {
+	var logbox = document.getElementById('<%=$this->UpdateSlotsLog->ClientID%>');
+	logbox.innerHTML = '';
+	var logbox_container = document.getElementById('update_slots_log');
+	logbox_container.style.display = 'none';
+	set_updating_status('start');
+	document.getElementById('update_slots').style.display = 'block';
+}
+<%=$this->getBarcodeUpdate() ? 'set_update_slots_barcodes(true);' : ''%>
 </script>