[thirdparty/mdadm.git] / Detail.c

/*
 * mdadm - manage Linux "md" devices aka RAID arrays.
 *
 * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
 *
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *    Author: Neil Brown
 *    Email: <neilb@cse.unsw.edu.au>
 *    Paper: Neil Brown
 *           School of Computer Science and Engineering
 *           The University of New South Wales
 *           Sydney, 2052
 *           Australia
 */

#include	"mdadm.h"
#include	"md_p.h"
#include	"md_u.h"
#include	<dirent.h>

int Detail(char *dev, int brief, int export, int test, char *homehost)
{
	/*
	 * Print out details for an md array by using
	 * GET_ARRAY_INFO and GET_DISK_INFO ioctl calls
	 */

	int fd = open(dev, O_RDONLY);
	int vers;
	mdu_array_info_t array;
	mdu_disk_info_t *disks;
	int next;
	int d;
	time_t atime;
	char *c;
	char *devices = NULL;
	int spares = 0;
	struct stat stb;
	int is_26 = get_linux_version() >= 2006000;
	int is_rebuilding = 0;
	int failed = 0;
	struct supertype *st = NULL;
	int max_disks = MD_SB_DISKS; /* just a default */
	struct mdinfo info;
	struct mdinfo *sra;
	char *member = NULL;
	char *container = NULL;

	int rv = test ? 4 : 1;
	int avail_disks = 0;
	char *avail;

	if (fd < 0) {
		fprintf(stderr, Name ": cannot open %s: %s\n",
			dev, strerror(errno));
		return rv;
	}
	vers = md_get_version(fd);
	if (vers < 0) {
		fprintf(stderr, Name ": %s does not appear to be an md device\n",
			dev);
		close(fd);
		return rv;
	}
	if (vers < 9000) {
		fprintf(stderr, Name ": cannot get detail for md device %s: driver version too old.\n",
			dev);
		close(fd);
		return rv;
	}
	if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
		if (errno == ENODEV)
			fprintf(stderr, Name ": md device %s does not appear to be active.\n",
				dev);
		else
			fprintf(stderr, Name ": cannot get array detail for %s: %s\n",
				dev, strerror(errno));
		close(fd);
		return rv;
	}
	sra = sysfs_read(fd, 0, GET_VERSION);
	st = super_by_fd(fd);

	if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
		stb.st_rdev = 0;
	rv = 0;

	if (st)
		max_disks = st->max_devs;

	if (sra && is_subarray(sra->text_version) &&
		strchr(sra->text_version+1, '/')) {
		/* This is a subarray of some container.
		 * We want the name of the container, and the member
		 */
		char *s = strchr(sra->text_version+1, '/');
		int dn;
		*s++ = '\0';
		member = s;
		dn = devname2devnum(sra->text_version+1);
		container = map_dev(dev2major(dn), dev2minor(dn), 1);
	}

	/* try to load a superblock */
	for (d= 0; d<max_disks; d++) {
		mdu_disk_info_t disk;
		char *dv;
		disk.number = d;
		if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
			continue;
		if (d >= array.raid_disks &&
		    disk.major == 0 &&
		    disk.minor == 0)
			continue;
		if ((dv=map_dev(disk.major, disk.minor, 1))) {
			if ((!st || !st->sb) &&
			    (array.raid_disks == 0 || 
			     (disk.state & (1<<MD_DISK_ACTIVE)))) {
				/* try to read the superblock from this device
				 * to get more info
				 */
				int fd2 = dev_open(dv, O_RDONLY);
				if (fd2 >=0 && st &&
				    st->ss->load_super(st, fd2, NULL) == 0) {
					st->ss->getinfo_super(st, &info);
					if (array.raid_disks != 0 && /* container */
					    (info.array.ctime != array.ctime ||
					     info.array.level != array.level))
						st->ss->free_super(st);
				}
				if (fd2 >= 0) close(fd2);
			}
		}
	}

	/* Ok, we have some info to print... */
	c = map_num(pers, array.level);

	if (export) {
		if (array.raid_disks) {
			if (c)
				printf("MD_LEVEL=%s\n", c);
			printf("MD_DEVICES=%d\n", array.raid_disks);
		} else {
			printf("MD_LEVEL=container\n");
			printf("MD_DEVICES=%d\n", array.nr_disks);
		}
		if (container) {
			printf("MD_CONTAINER=%s\n", container);
			printf("MD_MEMBER=%s\n", member);
		} else {
			if (sra && sra->array.major_version < 0)
				printf("MD_METADATA=%s\n", sra->text_version);
			else
				printf("MD_METADATA=%d.%02d\n",
				       array.major_version, array.minor_version);
		}
		
		if (st && st->sb) {
			struct mdinfo info;
			char nbuf[64];
			st->ss->getinfo_super(st, &info);
			fname_from_uuid(st, &info, nbuf, ':');
			printf("MD_UUID=%s\n", nbuf+5);

			if (st->ss->export_detail_super)
				st->ss->export_detail_super(st);
		}
		goto out;
	}

	if (brief) {
		mdu_bitmap_file_t bmf;
		if (array.raid_disks)
			printf("ARRAY %s level=%s num-devices=%d", dev,
			       c?c:"-unknown-",
			       array.raid_disks );
		else
			printf("ARRAY %s level=container num-devices=%d",
			       dev, array.nr_disks);

		if (container) {
			printf(" container=%s", container);
			printf(" member=%s", member);
		} else {
			if (sra && sra->array.major_version < 0)
				printf(" metadata=%s", sra->text_version);
			else
				printf(" metadata=%d.%02d",
				       array.major_version, array.minor_version);
		}

		/* Only try GET_BITMAP_FILE for 0.90.01 and later */
		if (vers >= 9001 &&
		    ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
		    bmf.pathname[0]) {
			printf(" bitmap=%s", bmf.pathname);
		}
	} else {
		mdu_bitmap_file_t bmf;
		unsigned long long larray_size;
		struct mdstat_ent *ms = mdstat_read(0, 0);
		struct mdstat_ent *e;
		int devnum = array.md_minor;
		if (major(stb.st_rdev) == get_mdp_major())
			devnum = -1 - devnum;

		for (e=ms; e; e=e->next)
			if (e->devnum == devnum)
				break;
		if (!get_dev_size(fd, NULL, &larray_size))
			larray_size = 0;

		printf("%s:\n", dev);

		if (container)
			printf("      Container : %s, member %s\n", container, member);
		else {
		if (sra && sra->array.major_version < 0)
			printf("        Version : %s\n", sra->text_version);
		else
			printf("        Version : %d.%02d\n",
			       array.major_version, array.minor_version);
		}

		atime = array.ctime;
		if (atime)
			printf("  Creation Time : %.24s\n", ctime(&atime));
		if (array.raid_disks == 0) c = "container";
		printf("     Raid Level : %s\n", c?c:"-unknown-");
		if (larray_size)
			printf("     Array Size : %llu%s\n", (larray_size>>10), human_size(larray_size));
		if (array.level >= 1) {
			if (array.major_version != 0 &&
			    (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
				unsigned long long dsize = get_component_size(fd);
				if (dsize > 0)
					printf("  Used Dev Size : %llu%s\n",
					       dsize,
					 human_size((long long)dsize<<10));
				else
					printf("  Used Dev Size : unknown\n");
			} else
				printf("  Used Dev Size : %d%s\n", array.size,
				       human_size((long long)array.size<<10));
		}
		if (array.raid_disks)
			printf("   Raid Devices : %d\n", array.raid_disks);
		printf("  Total Devices : %d\n", array.nr_disks);
		if (!container && 
		    ((sra == NULL && array.major_version == 0) ||
		     (sra && sra->array.major_version == 0)))
			printf("Preferred Minor : %d\n", array.md_minor);
		if (sra == NULL || sra->array.major_version >= 0)
			printf("    Persistence : Superblock is %spersistent\n",
			       array.not_persistent?"not ":"");
		printf("\n");
		/* Only try GET_BITMAP_FILE for 0.90.01 and later */
		if (vers >= 9001 &&
		    ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
		    bmf.pathname[0]) {
			printf("  Intent Bitmap : %s\n", bmf.pathname);
			printf("\n");
		} else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
			printf("  Intent Bitmap : Internal\n\n");
		atime = array.utime;
		if (atime)
			printf("    Update Time : %.24s\n", ctime(&atime));
		if (array.raid_disks)
			printf("          State : %s%s%s%s\n",
			       (array.state&(1<<MD_SB_CLEAN))?"clean":"active",
			       array.active_disks < array.raid_disks? ", degraded":"",
			       (!e || e->percent < 0) ? "" :
			       (e->resync) ? ", resyncing": ", recovering",
			       larray_size ? "": ", Not Started");
		if (array.raid_disks)
			printf(" Active Devices : %d\n", array.active_disks);
		printf("Working Devices : %d\n", array.working_disks);
		if (array.raid_disks) {
			printf(" Failed Devices : %d\n", array.failed_disks);
			printf("  Spare Devices : %d\n", array.spare_disks);
		}
		printf("\n");
		if (array.level == 5) {
			c = map_num(r5layout, array.layout);
			printf("         Layout : %s\n", c?c:"-unknown-");
		}
		if (array.level == 10) {
			printf("         Layout :");
			print_r10_layout(array.layout);
			printf("\n");
		}
		switch (array.level) {
		case 0:
		case 4:
		case 5:
		case 10:
		case 6:
			if (array.chunk_size)
				printf("     Chunk Size : %dK\n\n",
				       array.chunk_size/1024);
			break;
		case -1:
			printf("       Rounding : %dK\n\n", array.chunk_size/1024);
			break;
		default: break;
		}

		if (e && e->percent >= 0) {
			printf(" Re%s Status : %d%% complete\n",
			       (st && st->sb && info.reshape_active)?
			          "shape":"build",
			       e->percent);
			is_rebuilding = 1;
		}
		free_mdstat(ms);

		if (st->sb && info.reshape_active) {
#if 0
This is pretty boring
			printf("  Reshape pos'n : %llu%s\n", (unsigned long long) info.reshape_progress<<9,
			       human_size(info.reshape_progress<<9));
#endif
			if (info.delta_disks > 0)
				printf("  Delta Devices : %d, (%d->%d)\n",
				       info.delta_disks, array.raid_disks - info.delta_disks, array.raid_disks);
			if (info.delta_disks < 0)
				printf("  Delta Devices : %d, (%d->%d)\n",
				       info.delta_disks, array.raid_disks, array.raid_disks + info.delta_disks);
			if (info.new_level != array.level) {
				char *c = map_num(pers, info.new_level);
				printf("      New Level : %s\n", c?c:"-unknown-");
			}
			if (info.new_level != array.level ||
			    info.new_layout != array.layout) {
				if (info.new_level == 5) {
					char *c = map_num(r5layout, info.new_layout);
					printf("     New Layout : %s\n",
					       c?c:"-unknown-");
				}
				if (info.new_level == 10) {
					printf("     New Layout : near=%d, %s=%d\n",
					       info.new_layout&255,
					       (info.new_layout&0x10000)?"offset":"far",
					       (info.new_layout>>8)&255);
				}
			}
			if (info.new_chunk != array.chunk_size)
				printf("  New Chunksize : %dK\n", info.new_chunk/1024);
			printf("\n");
		} else if (e && e->percent >= 0)
			printf("\n");
		if (st && st->sb)
			st->ss->detail_super(st, homehost);

		if (array.raid_disks == 0 && sra && sra->array.major_version == -1
		    && sra->array.minor_version == -2 && sra->text_version[0] != '/') {
			/* This looks like a container.  Find any active arrays
			 * That claim to be a member.
			 */
			DIR *dir = opendir("/sys/block");
			struct dirent *de;

			printf("  Member Arrays :");

			while (dir && (de = readdir(dir)) != NULL) {
				char path[200];
				char vbuf[1024];
				int nlen = strlen(sra->sys_name);
				int dn;
				if (de->d_name[0] == '.')
					continue;
				sprintf(path, "/sys/block/%s/md/metadata_version",
					de->d_name);
				if (load_sys(path, vbuf) < 0)
					continue;
				if (strncmp(vbuf, "external:", 9) != 0 ||
				    !is_subarray(sra->sys_name+9) ||
				    strncmp(vbuf+10, sra->sys_name, nlen) != 0 ||
				    vbuf[10+nlen] != '/')
					continue;
				dn = devname2devnum(de->d_name);
				printf(" %s", map_dev(dev2major(dn),
						      dev2minor(dn), 1));
			}
			if (dir)
				closedir(dir);
			printf("\n\n");
		}

		if (array.raid_disks)
			printf("    Number   Major   Minor   RaidDevice State\n");
		else
			printf("    Number   Major   Minor   RaidDevice\n");
	}
	disks = malloc(max_disks * sizeof(mdu_disk_info_t));
	for (d=0; d<max_disks; d++) {
		disks[d].state = (1<<MD_DISK_REMOVED);
		disks[d].major = disks[d].minor = 0;
		disks[d].number = disks[d].raid_disk = d;
	}

	next = array.raid_disks;
	for (d=0; d < max_disks; d++) {
		mdu_disk_info_t disk;
		disk.number = d;
		if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
			if (d < array.raid_disks)
				fprintf(stderr, Name ": cannot get device detail for device %d: %s\n",
					d, strerror(errno));
			continue;
		}
		if (disk.major == 0 && disk.minor == 0)
			continue;
		if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks)
			disks[disk.raid_disk] = disk;
		else if (next < max_disks)
			disks[next++] = disk;
	}

	avail = calloc(array.raid_disks, 1);
	for (d= 0; d < max_disks; d++) {
		char *dv;
		mdu_disk_info_t disk = disks[d];

		if (d >= array.raid_disks &&
		    disk.major == 0 &&
		    disk.minor == 0)
			continue;
		if (!brief) {
			if (d == array.raid_disks) printf("\n");
			if (disk.raid_disk < 0)
				printf("   %5d   %5d    %5d        -     ",
				       disk.number, disk.major, disk.minor);
			else
				printf("   %5d   %5d    %5d    %5d     ",
				       disk.number, disk.major, disk.minor, disk.raid_disk);
		}
		if (!brief && array.raid_disks) {

			if (disk.state & (1<<MD_DISK_FAULTY)) {
				printf(" faulty");
				if (disk.raid_disk < array.raid_disks &&
				    disk.raid_disk >= 0)
					failed++;
			}
			if (disk.state & (1<<MD_DISK_ACTIVE)) printf(" active");
			if (disk.state & (1<<MD_DISK_SYNC)) printf(" sync");
			if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed");
			if (disk.state & (1<<MD_DISK_WRITEMOSTLY)) printf(" writemostly");
			if ((disk.state &
			     ((1<<MD_DISK_ACTIVE)|(1<<MD_DISK_SYNC)|(1<<MD_DISK_REMOVED)))
			    == 0) {
				printf(" spare");
				if (is_26) {
					if (disk.raid_disk < array.raid_disks && disk.raid_disk >= 0)
						printf(" rebuilding");
				} else if (is_rebuilding && failed) {
					/* Taking a bit of a risk here, we remove the
					 * device from the array, and then put it back.
					 * If this fails, we are rebuilding
					 */
					int err = ioctl(fd, HOT_REMOVE_DISK, makedev(disk.major, disk.minor));
					if (err == 0) ioctl(fd, HOT_ADD_DISK, makedev(disk.major, disk.minor));
					if (err && errno ==  EBUSY)
						printf(" rebuilding");
				}
			}
		}
		if (disk.state == 0) spares++;
		if (test && d < array.raid_disks
		    && !(disk.state & (1<<MD_DISK_SYNC)))
			rv |= 1;
		if (d < array.raid_disks
		    && (disk.state & (1<<MD_DISK_SYNC))) {
			avail_disks ++;
			avail[d] = 1;
		}
		if ((dv=map_dev(disk.major, disk.minor, 0))) {
			if (brief) {
				if (devices) {
					devices = realloc(devices,
							  strlen(devices)+1+strlen(dv)+1);
					strcat(strcat(devices,","),dv);
				} else
					devices = strdup(dv);
			} else
				printf("   %s", dv);
		}
		if (!brief) printf("\n");
	}
	if (spares && brief && array.raid_disks) printf(" spares=%d", spares);
	if (brief && st && st->sb)
		st->ss->brief_detail_super(st);
	st->ss->free_super(st);

	if (brief > 1 && devices) printf("\n   devices=%s", devices);
	if (brief) printf("\n");
	if (test &&
	    !enough(array.level, array.raid_disks, array.layout,
		    1, avail, avail_disks))
		rv = 2;

out:
	close(fd);
	return rv;
}
Commit	Line	Data
64c4757e	1	/*
9a9dab36	2	* mdadm - manage Linux "md" devices aka RAID arrays.
64c4757e	3	*
4f589ad0	4	* Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
64c4757e NB	5	*
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
	21	* Author: Neil Brown
	22	* Email: <neilb@cse.unsw.edu.au>
	23	* Paper: Neil Brown
	24	* School of Computer Science and Engineering
	25	* The University of New South Wales
	26	* Sydney, 2052
	27	* Australia
	28	*/
	29
9a9dab36	30	#include "mdadm.h"
64c4757e NB	31	#include "md_p.h"
64c4757e NB	32	#include "md_u.h"
c69b251b	33	#include <dirent.h>
64c4757e	34
54bad364	35	int Detail(char dev, int brief, int export, int test, char homehost)
64c4757e NB	36	{
	37	/*
	38	* Print out details for an md array by using
	39	* GET_ARRAY_INFO and GET_DISK_INFO ioctl calls
	40	*/
	41
fb97b4d6	42	int fd = open(dev, O_RDONLY);
64c4757e NB	43	int vers;
64c4757e NB	44	mdu_array_info_t array;
b0c63f32 NB	45	mdu_disk_info_t *disks;
b0c63f32 NB	46	int next;
64c4757e NB	47	int d;
64c4757e NB	48	time_t atime;
682c7051	49	char *c;
d013a55e	50	char *devices = NULL;
feb716e9	51	int spares = 0;
dd0781e5	52	struct stat stb;
e5329c37 NB	53	int is_26 = get_linux_version() >= 2006000;
	54	int is_rebuilding = 0;
	55	int failed = 0;
82d9eba6	56	struct supertype *st = NULL;
e27d562b	57	int max_disks = MD_SB_DISKS; /* just a default */
bed256c2	58	struct mdinfo info;
142cb9e1	59	struct mdinfo *sra;
c69b251b N	60	char *member = NULL;
c69b251b N	61	char *container = NULL;
64c4757e	62
feb716e9	63	int rv = test ? 4 : 1;
a77be586 NB	64	int avail_disks = 0;
a77be586 NB	65	char *avail;
82b27616	66
64c4757e	67	if (fd < 0) {
682c7051	68	fprintf(stderr, Name ": cannot open %s: %s\n",
64c4757e	69	dev, strerror(errno));
feb716e9	70	return rv;
64c4757e NB	71	}
	72	vers = md_get_version(fd);
	73	if (vers < 0) {
682c7051	74	fprintf(stderr, Name ": %s does not appear to be an md device\n",
64c4757e NB	75	dev);
64c4757e NB	76	close(fd);
feb716e9	77	return rv;
64c4757e	78	}
682c7051 NB	79	if (vers < 9000) {
682c7051 NB	80	fprintf(stderr, Name ": cannot get detail for md device %s: driver version too old.\n",
64c4757e NB	81	dev);
64c4757e NB	82	close(fd);
feb716e9	83	return rv;
64c4757e NB	84	}
	85	if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
	86	if (errno == ENODEV)
682c7051	87	fprintf(stderr, Name ": md device %s does not appear to be active.\n",
64c4757e NB	88	dev);
64c4757e NB	89	else
682c7051	90	fprintf(stderr, Name ": cannot get array detail for %s: %s\n",
64c4757e NB	91	dev, strerror(errno));
64c4757e NB	92	close(fd);
feb716e9	93	return rv;
64c4757e	94	}
142cb9e1	95	sra = sysfs_read(fd, 0, GET_VERSION);
1686dc25	96	st = super_by_fd(fd);
f9ce90ba	97
dd0781e5 NB	98	if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
dd0781e5 NB	99	stb.st_rdev = 0;
feb716e9	100	rv = 0;
e5329c37	101
c69b251b N	102	if (st)
	103	max_disks = st->max_devs;
	104
	105	if (sra && is_subarray(sra->text_version) &&
	106	strchr(sra->text_version+1, '/')) {
	107	/* This is a subarray of some container.
	108	* We want the name of the container, and the member
	109	*/
	110	char *s = strchr(sra->text_version+1, '/');
	111	int dn;
	112	*s++ = '\0';
	113	member = s;
	114	dn = devname2devnum(sra->text_version+1);
	115	container = map_dev(dev2major(dn), dev2minor(dn), 1);
	116	}
ea329559	117
e5329c37	118	/* try to load a superblock */
ea329559	119	for (d= 0; d<max_disks; d++) {
e5329c37 NB	120	mdu_disk_info_t disk;
	121	char *dv;
	122	disk.number = d;
	123	if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
	124	continue;
	125	if (d >= array.raid_disks &&
	126	disk.major == 0 &&
	127	disk.minor == 0)
	128	continue;
16c6fa80	129	if ((dv=map_dev(disk.major, disk.minor, 1))) {
3da92f27	130	if ((!st \|\| !st->sb) &&
ff54de6e N	131	(array.raid_disks == 0 \|\|
ff54de6e N	132	(disk.state & (1<<MD_DISK_ACTIVE)))) {
e5329c37 NB	133	/* try to read the superblock from this device
	134	* to get more info
	135	*/
16c6fa80	136	int fd2 = dev_open(dv, O_RDONLY);
82d9eba6	137	if (fd2 >=0 && st &&
3da92f27 NB	138	st->ss->load_super(st, fd2, NULL) == 0) {
3da92f27 NB	139	st->ss->getinfo_super(st, &info);
ff54de6e N	140	if (array.raid_disks != 0 && /* container */
	141	(info.array.ctime != array.ctime \|\|
	142	info.array.level != array.level))
3da92f27	143	st->ss->free_super(st);
4b1ac34b	144	}
e5329c37 NB	145	if (fd2 >= 0) close(fd2);
	146	}
	147	}
	148	}
	149
64c4757e	150	/* Ok, we have some info to print... */
682c7051	151	c = map_num(pers, array.level);
54bad364 KS	152
54bad364 KS	153	if (export) {
c69b251b N	154	if (array.raid_disks) {
	155	if (c)
	156	printf("MD_LEVEL=%s\n", c);
	157	printf("MD_DEVICES=%d\n", array.raid_disks);
	158	} else {
	159	printf("MD_LEVEL=container\n");
	160	printf("MD_DEVICES=%d\n", array.nr_disks);
	161	}
	162	if (container) {
	163	printf("MD_CONTAINER=%s\n", container);
	164	printf("MD_MEMBER=%s\n", member);
	165	} else {
	166	if (sra && sra->array.major_version < 0)
	167	printf("MD_METADATA=%s\n", sra->text_version);
	168	else
6c766cf1	169	printf("MD_METADATA=%d.%02d\n",
c69b251b N	170	array.major_version, array.minor_version);
c69b251b N	171	}
35ddc76d N	172
	173	if (st && st->sb) {
	174	struct mdinfo info;
	175	char nbuf[64];
	176	st->ss->getinfo_super(st, &info);
	177	fname_from_uuid(st, &info, nbuf, ':');
	178	printf("MD_UUID=%s\n", nbuf+5);
142cb9e1	179
35ddc76d N	180	if (st->ss->export_detail_super)
	181	st->ss->export_detail_super(st);
	182	}
54bad364 KS	183	goto out;
	184	}
	185
142cb9e1	186	if (brief) {
e8eb8763	187	mdu_bitmap_file_t bmf;
c69b251b N	188	if (array.raid_disks)
	189	printf("ARRAY %s level=%s num-devices=%d", dev,
	190	c?c:"-unknown-",
	191	array.raid_disks );
142cb9e1	192	else
c69b251b N	193	printf("ARRAY %s level=container num-devices=%d",
	194	dev, array.nr_disks);
	195
	196	if (container) {
	197	printf(" container=%s", container);
	198	printf(" member=%s", member);
	199	} else {
	200	if (sra && sra->array.major_version < 0)
	201	printf(" metadata=%s", sra->text_version);
	202	else
6c766cf1	203	printf(" metadata=%d.%02d",
c69b251b N	204	array.major_version, array.minor_version);
c69b251b N	205	}
e8eb8763 NB	206
	207	/* Only try GET_BITMAP_FILE for 0.90.01 and later */
	208	if (vers >= 9001 &&
	209	ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
	210	bmf.pathname[0]) {
	211	printf(" bitmap=%s", bmf.pathname);
	212	}
142cb9e1	213	} else {
8fac0577	214	mdu_bitmap_file_t bmf;
e0d19036	215	unsigned long long larray_size;
22a88995	216	struct mdstat_ent *ms = mdstat_read(0, 0);
dd0781e5 NB	217	struct mdstat_ent *e;
dd0781e5 NB	218	int devnum = array.md_minor;
4ebd3237	219	if (major(stb.st_rdev) == get_mdp_major())
dd0781e5 NB	220	devnum = -1 - devnum;
	221
	222	for (e=ms; e; e=e->next)
	223	if (e->devnum == devnum)
	224	break;
beae1dfe NB	225	if (!get_dev_size(fd, NULL, &larray_size))
beae1dfe NB	226	larray_size = 0;
56eb10c0	227
cd29a5c8	228	printf("%s:\n", dev);
142cb9e1	229
c69b251b N	230	if (container)
	231	printf(" Container : %s, member %s\n", container, member);
	232	else {
142cb9e1 NB	233	if (sra && sra->array.major_version < 0)
	234	printf(" Version : %s\n", sra->text_version);
	235	else
d7ee65c9	236	printf(" Version : %d.%02d\n",
142cb9e1	237	array.major_version, array.minor_version);
c69b251b	238	}
142cb9e1	239
cd29a5c8	240	atime = array.ctime;
c69b251b N	241	if (atime)
c69b251b N	242	printf(" Creation Time : %.24s\n", ctime(&atime));
142cb9e1	243	if (array.raid_disks == 0) c = "container";
cd29a5c8	244	printf(" Raid Level : %s\n", c?c:"-unknown-");
56eb10c0	245	if (larray_size)
dd0781e5	246	printf(" Array Size : %llu%s\n", (larray_size>>10), human_size(larray_size));
3d4064cc NB	247	if (array.level >= 1) {
3d4064cc NB	248	if (array.major_version != 0 &&
6ee5c05a NB	249	(larray_size >= 0xFFFFFFFFULL\|\| array.size == 0)) {
	250	unsigned long long dsize = get_component_size(fd);
	251	if (dsize > 0)
e3362544 NB	252	printf(" Used Dev Size : %llu%s\n",
e3362544 NB	253	dsize,
7a3be72f	254	human_size((long long)dsize<<10));
6ee5c05a	255	else
e3362544	256	printf(" Used Dev Size : unknown\n");
6ee5c05a	257	} else
e3362544 NB	258	printf(" Used Dev Size : %d%s\n", array.size,
e3362544 NB	259	human_size((long long)array.size<<10));
3d4064cc	260	}
c69b251b N	261	if (array.raid_disks)
c69b251b N	262	printf(" Raid Devices : %d\n", array.raid_disks);
b83d95f3	263	printf(" Total Devices : %d\n", array.nr_disks);
c69b251b N	264	if (!container &&
	265	((sra == NULL && array.major_version == 0) \|\|
	266	(sra && sra->array.major_version == 0)))
	267	printf("Preferred Minor : %d\n", array.md_minor);
142cb9e1 NB	268	if (sra == NULL \|\| sra->array.major_version >= 0)
	269	printf(" Persistence : Superblock is %spersistent\n",
	270	array.not_persistent?"not ":"");
cd29a5c8	271	printf("\n");
4027ddca NB	272	/* Only try GET_BITMAP_FILE for 0.90.01 and later */
	273	if (vers >= 9001 &&
	274	ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
	275	bmf.pathname[0]) {
8fac0577 NB	276	printf(" Intent Bitmap : %s\n", bmf.pathname);
	277	printf("\n");
	278	} else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
	279	printf(" Intent Bitmap : Internal\n\n");
cd29a5c8	280	atime = array.utime;
c69b251b N	281	if (atime)
	282	printf(" Update Time : %.24s\n", ctime(&atime));
	283	if (array.raid_disks)
	284	printf(" State : %s%s%s%s\n",
	285	(array.state&(1<<MD_SB_CLEAN))?"clean":"active",
	286	array.active_disks < array.raid_disks? ", degraded":"",
	287	(!e \|\| e->percent < 0) ? "" :
	288	(e->resync) ? ", resyncing": ", recovering",
	289	larray_size ? "": ", Not Started");
	290	if (array.raid_disks)
	291	printf(" Active Devices : %d\n", array.active_disks);
b83d95f3	292	printf("Working Devices : %d\n", array.working_disks);
c69b251b N	293	if (array.raid_disks) {
	294	printf(" Failed Devices : %d\n", array.failed_disks);
	295	printf(" Spare Devices : %d\n", array.spare_disks);
	296	}
cd29a5c8 NB	297	printf("\n");
	298	if (array.level == 5) {
	299	c = map_num(r5layout, array.layout);
	300	printf(" Layout : %s\n", c?c:"-unknown-");
	301	}
e5329c37	302	if (array.level == 10) {
e4965ef8 N	303	printf(" Layout :");
	304	print_r10_layout(array.layout);
	305	printf("\n");
e5329c37	306	}
cd29a5c8 NB	307	switch (array.level) {
	308	case 0:
	309	case 4:
	310	case 5:
e5329c37 NB	311	case 10:
e5329c37 NB	312	case 6:
142cb9e1 NB	313	if (array.chunk_size)
	314	printf(" Chunk Size : %dK\n\n",
	315	array.chunk_size/1024);
cd29a5c8 NB	316	break;
cd29a5c8 NB	317	case -1:
e5329c37	318	printf(" Rounding : %dK\n\n", array.chunk_size/1024);
cd29a5c8 NB	319	break;
	320	default: break;
	321	}
aba69144	322
e5329c37	323	if (e && e->percent >= 0) {
bed256c2	324	printf(" Re%s Status : %d%% complete\n",
3da92f27 NB	325	(st && st->sb && info.reshape_active)?
3da92f27 NB	326	"shape":"build",
bed256c2	327	e->percent);
e5329c37 NB	328	is_rebuilding = 1;
e5329c37 NB	329	}
dd0781e5 NB	330	free_mdstat(ms);
dd0781e5 NB	331
3da92f27	332	if (st->sb && info.reshape_active) {
bed256c2 NB	333	#if 0
	334	This is pretty boring
	335	printf(" Reshape pos'n : %llu%s\n", (unsigned long long) info.reshape_progress<<9,
	336	human_size(info.reshape_progress<<9));
	337	#endif
	338	if (info.delta_disks > 0)
	339	printf(" Delta Devices : %d, (%d->%d)\n",
	340	info.delta_disks, array.raid_disks - info.delta_disks, array.raid_disks);
	341	if (info.delta_disks < 0)
	342	printf(" Delta Devices : %d, (%d->%d)\n",
	343	info.delta_disks, array.raid_disks, array.raid_disks + info.delta_disks);
	344	if (info.new_level != array.level) {
	345	char *c = map_num(pers, info.new_level);
	346	printf(" New Level : %s\n", c?c:"-unknown-");
	347	}
	348	if (info.new_level != array.level \|\|
	349	info.new_layout != array.layout) {
	350	if (info.new_level == 5) {
	351	char *c = map_num(r5layout, info.new_layout);
	352	printf(" New Layout : %s\n",
	353	c?c:"-unknown-");
	354	}
	355	if (info.new_level == 10) {
b578481c	356	printf(" New Layout : near=%d, %s=%d\n",
bed256c2	357	info.new_layout&255,
b578481c	358	(info.new_layout&0x10000)?"offset":"far",
bed256c2 NB	359	(info.new_layout>>8)&255);
	360	}
	361	}
	362	if (info.new_chunk != array.chunk_size)
	363	printf(" New Chunksize : %dK\n", info.new_chunk/1024);
	364	printf("\n");
	365	} else if (e && e->percent >= 0)
	366	printf("\n");
3da92f27 NB	367	if (st && st->sb)
3da92f27 NB	368	st->ss->detail_super(st, homehost);
e5329c37	369
c69b251b N	370	if (array.raid_disks == 0 && sra && sra->array.major_version == -1
	371	&& sra->array.minor_version == -2 && sra->text_version[0] != '/') {
	372	/* This looks like a container. Find any active arrays
	373	* That claim to be a member.
	374	*/
	375	DIR *dir = opendir("/sys/block");
	376	struct dirent *de;
	377
	378	printf(" Member Arrays :");
	379
	380	while (dir && (de = readdir(dir)) != NULL) {
	381	char path[200];
	382	char vbuf[1024];
	383	int nlen = strlen(sra->sys_name);
	384	int dn;
	385	if (de->d_name[0] == '.')
	386	continue;
	387	sprintf(path, "/sys/block/%s/md/metadata_version",
	388	de->d_name);
	389	if (load_sys(path, vbuf) < 0)
	390	continue;
	391	if (strncmp(vbuf, "external:", 9) != 0 \|\|
	392	!is_subarray(sra->sys_name+9) \|\|
	393	strncmp(vbuf+10, sra->sys_name, nlen) != 0 \|\|
	394	vbuf[10+nlen] != '/')
	395	continue;
	396	dn = devname2devnum(de->d_name);
	397	printf(" %s", map_dev(dev2major(dn),
	398	dev2minor(dn), 1));
	399	}
	400	if (dir)
	401	closedir(dir);
	402	printf("\n\n");
	403	}
	404
	405	if (array.raid_disks)
	406	printf(" Number Major Minor RaidDevice State\n");
	407	else
	408	printf(" Number Major Minor RaidDevice\n");
cd29a5c8	409	}
b0c63f32 NB	410	disks = malloc(max_disks * sizeof(mdu_disk_info_t));
	411	for (d=0; d<max_disks; d++) {
	412	disks[d].state = (1<<MD_DISK_REMOVED);
	413	disks[d].major = disks[d].minor = 0;
8352ab3e	414	disks[d].number = disks[d].raid_disk = d;
b0c63f32 NB	415	}
	416
	417	next = array.raid_disks;
	418	for (d=0; d < max_disks; d++) {
64c4757e NB	419	mdu_disk_info_t disk;
	420	disk.number = d;
	421	if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
e0d19036	422	if (d < array.raid_disks)
b83d95f3	423	fprintf(stderr, Name ": cannot get device detail for device %d: %s\n",
e0d19036	424	d, strerror(errno));
64c4757e NB	425	continue;
64c4757e NB	426	}
67687afe NB	427	if (disk.major == 0 && disk.minor == 0)
67687afe NB	428	continue;
aba69144	429	if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks)
b0c63f32 NB	430	disks[disk.raid_disk] = disk;
	431	else if (next < max_disks)
	432	disks[next++] = disk;
	433	}
	434
a77be586	435	avail = calloc(array.raid_disks, 1);
b0c63f32 NB	436	for (d= 0; d < max_disks; d++) {
	437	char *dv;
	438	mdu_disk_info_t disk = disks[d];
	439
e0d19036 NB	440	if (d >= array.raid_disks &&
	441	disk.major == 0 &&
	442	disk.minor == 0)
	443	continue;
cd29a5c8	444	if (!brief) {
b0c63f32	445	if (d == array.raid_disks) printf("\n");
e5329c37	446	if (disk.raid_disk < 0)
aba69144	447	printf(" %5d %5d %5d - ",
e5329c37 NB	448	disk.number, disk.major, disk.minor);
e5329c37 NB	449	else
aba69144	450	printf(" %5d %5d %5d %5d ",
e5329c37	451	disk.number, disk.major, disk.minor, disk.raid_disk);
c69b251b N	452	}
	453	if (!brief && array.raid_disks) {
	454
aba69144 NB	455	if (disk.state & (1<<MD_DISK_FAULTY)) {
aba69144 NB	456	printf(" faulty");
e5329c37 NB	457	if (disk.raid_disk < array.raid_disks &&
	458	disk.raid_disk >= 0)
	459	failed++;
	460	}
cd29a5c8 NB	461	if (disk.state & (1<<MD_DISK_ACTIVE)) printf(" active");
	462	if (disk.state & (1<<MD_DISK_SYNC)) printf(" sync");
	463	if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed");
b0c63f32 NB	464	if (disk.state & (1<<MD_DISK_WRITEMOSTLY)) printf(" writemostly");
	465	if ((disk.state &
	466	((1<<MD_DISK_ACTIVE)\|(1<<MD_DISK_SYNC)\|(1<<MD_DISK_REMOVED)))
	467	== 0) {
	468	printf(" spare");
e5329c37 NB	469	if (is_26) {
	470	if (disk.raid_disk < array.raid_disks && disk.raid_disk >= 0)
	471	printf(" rebuilding");
	472	} else if (is_rebuilding && failed) {
	473	/* Taking a bit of a risk here, we remove the
	474	* device from the array, and then put it back.
	475	* If this fails, we are rebuilding
	476	*/
0df46c2a NB	477	int err = ioctl(fd, HOT_REMOVE_DISK, makedev(disk.major, disk.minor));
0df46c2a NB	478	if (err == 0) ioctl(fd, HOT_ADD_DISK, makedev(disk.major, disk.minor));
e5329c37 NB	479	if (err && errno == EBUSY)
	480	printf(" rebuilding");
	481	}
	482	}
feb716e9	483	}
e5329c37	484	if (disk.state == 0) spares++;
a77be586 NB	485	if (test && d < array.raid_disks
a77be586 NB	486	&& !(disk.state & (1<<MD_DISK_SYNC)))
feb716e9	487	rv \|= 1;
a77be586 NB	488	if (d < array.raid_disks
	489	&& (disk.state & (1<<MD_DISK_SYNC))) {
	490	avail_disks ++;
	491	avail[d] = 1;
cd29a5c8	492	}
16c6fa80	493	if ((dv=map_dev(disk.major, disk.minor, 0))) {
d013a55e NB	494	if (brief) {
	495	if (devices) {
	496	devices = realloc(devices,
	497	strlen(devices)+1+strlen(dv)+1);
	498	strcat(strcat(devices,","),dv);
	499	} else
	500	devices = strdup(dv);
	501	} else
	502	printf(" %s", dv);
82b27616	503	}
cd29a5c8	504	if (!brief) printf("\n");
64c4757e	505	}
c69b251b	506	if (spares && brief && array.raid_disks) printf(" spares=%d", spares);
3da92f27 NB	507	if (brief && st && st->sb)
	508	st->ss->brief_detail_super(st);
	509	st->ss->free_super(st);
4b1ac34b	510
22892d56	511	if (brief > 1 && devices) printf("\n devices=%s", devices);
cd29a5c8	512	if (brief) printf("\n");
a77be586 NB	513	if (test &&
	514	!enough(array.level, array.raid_disks, array.layout,
	515	1, avail, avail_disks))
	516	rv = 2;
	517
a328c097	518	out:
e5329c37	519	close(fd);
feb716e9	520	return rv;
64c4757e	521	}