[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) &&
			    (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 (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=%02d.%02d\n",
				       array.major_version, array.minor_version);
		}

		if (st && st->sb)
			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=%02d.%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) != MD_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 : %02d.%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 : near=%d, %s=%d\n",
			       array.layout&255, (array.layout&0x10000)?"offset":"far",
			       (array.layout>>8)&255);
		}
		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 NB	130	if ((!st \|\| !st->sb) &&
3da92f27 NB	131	(disk.state & (1<<MD_DISK_ACTIVE))) {
e5329c37 NB	132	/* try to read the superblock from this device
	133	* to get more info
	134	*/
16c6fa80	135	int fd2 = dev_open(dv, O_RDONLY);
82d9eba6	136	if (fd2 >=0 && st &&
3da92f27 NB	137	st->ss->load_super(st, fd2, NULL) == 0) {
3da92f27 NB	138	st->ss->getinfo_super(st, &info);
4b1ac34b	139	if (info.array.ctime != array.ctime \|\|
3da92f27 NB	140	info.array.level != array.level)
3da92f27 NB	141	st->ss->free_super(st);
4b1ac34b	142	}
e5329c37 NB	143	if (fd2 >= 0) close(fd2);
	144	}
	145	}
	146	}
	147
64c4757e	148	/* Ok, we have some info to print... */
682c7051	149	c = map_num(pers, array.level);
54bad364 KS	150
54bad364 KS	151	if (export) {
c69b251b N	152	if (array.raid_disks) {
	153	if (c)
	154	printf("MD_LEVEL=%s\n", c);
	155	printf("MD_DEVICES=%d\n", array.raid_disks);
	156	} else {
	157	printf("MD_LEVEL=container\n");
	158	printf("MD_DEVICES=%d\n", array.nr_disks);
	159	}
	160	if (container) {
	161	printf("MD_CONTAINER=%s\n", container);
	162	printf("MD_MEMBER=%s\n", member);
	163	} else {
	164	if (sra && sra->array.major_version < 0)
	165	printf("MD_METADATA=%s\n", sra->text_version);
	166	else
	167	printf("MD_METADATA=%02d.%02d\n",
	168	array.major_version, array.minor_version);
	169	}
142cb9e1	170
3da92f27	171	if (st && st->sb)
0d726f17	172	st->ss->export_detail_super(st);
54bad364 KS	173	goto out;
	174	}
	175
142cb9e1	176	if (brief) {
e8eb8763	177	mdu_bitmap_file_t bmf;
c69b251b N	178	if (array.raid_disks)
	179	printf("ARRAY %s level=%s num-devices=%d", dev,
	180	c?c:"-unknown-",
	181	array.raid_disks );
142cb9e1	182	else
c69b251b N	183	printf("ARRAY %s level=container num-devices=%d",
	184	dev, array.nr_disks);
	185
	186	if (container) {
	187	printf(" container=%s", container);
	188	printf(" member=%s", member);
	189	} else {
	190	if (sra && sra->array.major_version < 0)
	191	printf(" metadata=%s", sra->text_version);
	192	else
	193	printf(" metadata=%02d.%02d",
	194	array.major_version, array.minor_version);
	195	}
e8eb8763 NB	196
	197	/* Only try GET_BITMAP_FILE for 0.90.01 and later */
	198	if (vers >= 9001 &&
	199	ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
	200	bmf.pathname[0]) {
	201	printf(" bitmap=%s", bmf.pathname);
	202	}
142cb9e1	203	} else {
8fac0577	204	mdu_bitmap_file_t bmf;
e0d19036	205	unsigned long long larray_size;
22a88995	206	struct mdstat_ent *ms = mdstat_read(0, 0);
dd0781e5 NB	207	struct mdstat_ent *e;
dd0781e5 NB	208	int devnum = array.md_minor;
0df46c2a	209	if (major(stb.st_rdev) != MD_MAJOR)
dd0781e5 NB	210	devnum = -1 - devnum;
	211
	212	for (e=ms; e; e=e->next)
	213	if (e->devnum == devnum)
	214	break;
beae1dfe NB	215	if (!get_dev_size(fd, NULL, &larray_size))
beae1dfe NB	216	larray_size = 0;
56eb10c0	217
cd29a5c8	218	printf("%s:\n", dev);
142cb9e1	219
c69b251b N	220	if (container)
	221	printf(" Container : %s, member %s\n", container, member);
	222	else {
142cb9e1 NB	223	if (sra && sra->array.major_version < 0)
	224	printf(" Version : %s\n", sra->text_version);
	225	else
	226	printf(" Version : %02d.%02d\n",
	227	array.major_version, array.minor_version);
c69b251b	228	}
142cb9e1	229
cd29a5c8	230	atime = array.ctime;
c69b251b N	231	if (atime)
c69b251b N	232	printf(" Creation Time : %.24s\n", ctime(&atime));
142cb9e1	233	if (array.raid_disks == 0) c = "container";
cd29a5c8	234	printf(" Raid Level : %s\n", c?c:"-unknown-");
56eb10c0	235	if (larray_size)
dd0781e5	236	printf(" Array Size : %llu%s\n", (larray_size>>10), human_size(larray_size));
3d4064cc NB	237	if (array.level >= 1) {
3d4064cc NB	238	if (array.major_version != 0 &&
6ee5c05a NB	239	(larray_size >= 0xFFFFFFFFULL\|\| array.size == 0)) {
	240	unsigned long long dsize = get_component_size(fd);
	241	if (dsize > 0)
e3362544 NB	242	printf(" Used Dev Size : %llu%s\n",
e3362544 NB	243	dsize,
7a3be72f	244	human_size((long long)dsize<<10));
6ee5c05a	245	else
e3362544	246	printf(" Used Dev Size : unknown\n");
6ee5c05a	247	} else
e3362544 NB	248	printf(" Used Dev Size : %d%s\n", array.size,
e3362544 NB	249	human_size((long long)array.size<<10));
3d4064cc	250	}
c69b251b N	251	if (array.raid_disks)
c69b251b N	252	printf(" Raid Devices : %d\n", array.raid_disks);
b83d95f3	253	printf(" Total Devices : %d\n", array.nr_disks);
c69b251b N	254	if (!container &&
	255	((sra == NULL && array.major_version == 0) \|\|
	256	(sra && sra->array.major_version == 0)))
	257	printf("Preferred Minor : %d\n", array.md_minor);
142cb9e1 NB	258	if (sra == NULL \|\| sra->array.major_version >= 0)
	259	printf(" Persistence : Superblock is %spersistent\n",
	260	array.not_persistent?"not ":"");
cd29a5c8	261	printf("\n");
4027ddca NB	262	/* Only try GET_BITMAP_FILE for 0.90.01 and later */
	263	if (vers >= 9001 &&
	264	ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
	265	bmf.pathname[0]) {
8fac0577 NB	266	printf(" Intent Bitmap : %s\n", bmf.pathname);
	267	printf("\n");
	268	} else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
	269	printf(" Intent Bitmap : Internal\n\n");
cd29a5c8	270	atime = array.utime;
c69b251b N	271	if (atime)
	272	printf(" Update Time : %.24s\n", ctime(&atime));
	273	if (array.raid_disks)
	274	printf(" State : %s%s%s%s\n",
	275	(array.state&(1<<MD_SB_CLEAN))?"clean":"active",
	276	array.active_disks < array.raid_disks? ", degraded":"",
	277	(!e \|\| e->percent < 0) ? "" :
	278	(e->resync) ? ", resyncing": ", recovering",
	279	larray_size ? "": ", Not Started");
	280	if (array.raid_disks)
	281	printf(" Active Devices : %d\n", array.active_disks);
b83d95f3	282	printf("Working Devices : %d\n", array.working_disks);
c69b251b N	283	if (array.raid_disks) {
	284	printf(" Failed Devices : %d\n", array.failed_disks);
	285	printf(" Spare Devices : %d\n", array.spare_disks);
	286	}
cd29a5c8 NB	287	printf("\n");
	288	if (array.level == 5) {
	289	c = map_num(r5layout, array.layout);
	290	printf(" Layout : %s\n", c?c:"-unknown-");
	291	}
e5329c37	292	if (array.level == 10) {
b578481c NB	293	printf(" Layout : near=%d, %s=%d\n",
	294	array.layout&255, (array.layout&0x10000)?"offset":"far",
	295	(array.layout>>8)&255);
e5329c37	296	}
cd29a5c8 NB	297	switch (array.level) {
	298	case 0:
	299	case 4:
	300	case 5:
e5329c37 NB	301	case 10:
e5329c37 NB	302	case 6:
142cb9e1 NB	303	if (array.chunk_size)
	304	printf(" Chunk Size : %dK\n\n",
	305	array.chunk_size/1024);
cd29a5c8 NB	306	break;
cd29a5c8 NB	307	case -1:
e5329c37	308	printf(" Rounding : %dK\n\n", array.chunk_size/1024);
cd29a5c8 NB	309	break;
	310	default: break;
	311	}
aba69144	312
e5329c37	313	if (e && e->percent >= 0) {
bed256c2	314	printf(" Re%s Status : %d%% complete\n",
3da92f27 NB	315	(st && st->sb && info.reshape_active)?
3da92f27 NB	316	"shape":"build",
bed256c2	317	e->percent);
e5329c37 NB	318	is_rebuilding = 1;
e5329c37 NB	319	}
dd0781e5 NB	320	free_mdstat(ms);
dd0781e5 NB	321
3da92f27	322	if (st->sb && info.reshape_active) {
bed256c2 NB	323	#if 0
	324	This is pretty boring
	325	printf(" Reshape pos'n : %llu%s\n", (unsigned long long) info.reshape_progress<<9,
	326	human_size(info.reshape_progress<<9));
	327	#endif
	328	if (info.delta_disks > 0)
	329	printf(" Delta Devices : %d, (%d->%d)\n",
	330	info.delta_disks, array.raid_disks - info.delta_disks, array.raid_disks);
	331	if (info.delta_disks < 0)
	332	printf(" Delta Devices : %d, (%d->%d)\n",
	333	info.delta_disks, array.raid_disks, array.raid_disks + info.delta_disks);
	334	if (info.new_level != array.level) {
	335	char *c = map_num(pers, info.new_level);
	336	printf(" New Level : %s\n", c?c:"-unknown-");
	337	}
	338	if (info.new_level != array.level \|\|
	339	info.new_layout != array.layout) {
	340	if (info.new_level == 5) {
	341	char *c = map_num(r5layout, info.new_layout);
	342	printf(" New Layout : %s\n",
	343	c?c:"-unknown-");
	344	}
	345	if (info.new_level == 10) {
b578481c	346	printf(" New Layout : near=%d, %s=%d\n",
bed256c2	347	info.new_layout&255,
b578481c	348	(info.new_layout&0x10000)?"offset":"far",
bed256c2 NB	349	(info.new_layout>>8)&255);
	350	}
	351	}
	352	if (info.new_chunk != array.chunk_size)
	353	printf(" New Chunksize : %dK\n", info.new_chunk/1024);
	354	printf("\n");
	355	} else if (e && e->percent >= 0)
	356	printf("\n");
3da92f27 NB	357	if (st && st->sb)
3da92f27 NB	358	st->ss->detail_super(st, homehost);
e5329c37	359
c69b251b N	360	if (array.raid_disks == 0 && sra && sra->array.major_version == -1
	361	&& sra->array.minor_version == -2 && sra->text_version[0] != '/') {
	362	/* This looks like a container. Find any active arrays
	363	* That claim to be a member.
	364	*/
	365	DIR *dir = opendir("/sys/block");
	366	struct dirent *de;
	367
	368	printf(" Member Arrays :");
	369
	370	while (dir && (de = readdir(dir)) != NULL) {
	371	char path[200];
	372	char vbuf[1024];
	373	int nlen = strlen(sra->sys_name);
	374	int dn;
	375	if (de->d_name[0] == '.')
	376	continue;
	377	sprintf(path, "/sys/block/%s/md/metadata_version",
	378	de->d_name);
	379	if (load_sys(path, vbuf) < 0)
	380	continue;
	381	if (strncmp(vbuf, "external:", 9) != 0 \|\|
	382	!is_subarray(sra->sys_name+9) \|\|
	383	strncmp(vbuf+10, sra->sys_name, nlen) != 0 \|\|
	384	vbuf[10+nlen] != '/')
	385	continue;
	386	dn = devname2devnum(de->d_name);
	387	printf(" %s", map_dev(dev2major(dn),
	388	dev2minor(dn), 1));
	389	}
	390	if (dir)
	391	closedir(dir);
	392	printf("\n\n");
	393	}
	394
	395	if (array.raid_disks)
	396	printf(" Number Major Minor RaidDevice State\n");
	397	else
	398	printf(" Number Major Minor RaidDevice\n");
cd29a5c8	399	}
b0c63f32 NB	400	disks = malloc(max_disks * sizeof(mdu_disk_info_t));
	401	for (d=0; d<max_disks; d++) {
	402	disks[d].state = (1<<MD_DISK_REMOVED);
	403	disks[d].major = disks[d].minor = 0;
8352ab3e	404	disks[d].number = disks[d].raid_disk = d;
b0c63f32 NB	405	}
	406
	407	next = array.raid_disks;
	408	for (d=0; d < max_disks; d++) {
64c4757e NB	409	mdu_disk_info_t disk;
	410	disk.number = d;
	411	if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
e0d19036	412	if (d < array.raid_disks)
b83d95f3	413	fprintf(stderr, Name ": cannot get device detail for device %d: %s\n",
e0d19036	414	d, strerror(errno));
64c4757e NB	415	continue;
64c4757e NB	416	}
67687afe NB	417	if (disk.major == 0 && disk.minor == 0)
67687afe NB	418	continue;
aba69144	419	if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks)
b0c63f32 NB	420	disks[disk.raid_disk] = disk;
	421	else if (next < max_disks)
	422	disks[next++] = disk;
	423	}
	424
a77be586	425	avail = calloc(array.raid_disks, 1);
b0c63f32 NB	426	for (d= 0; d < max_disks; d++) {
	427	char *dv;
	428	mdu_disk_info_t disk = disks[d];
	429
e0d19036 NB	430	if (d >= array.raid_disks &&
	431	disk.major == 0 &&
	432	disk.minor == 0)
	433	continue;
cd29a5c8	434	if (!brief) {
b0c63f32	435	if (d == array.raid_disks) printf("\n");
e5329c37	436	if (disk.raid_disk < 0)
aba69144	437	printf(" %5d %5d %5d - ",
e5329c37 NB	438	disk.number, disk.major, disk.minor);
e5329c37 NB	439	else
aba69144	440	printf(" %5d %5d %5d %5d ",
e5329c37	441	disk.number, disk.major, disk.minor, disk.raid_disk);
c69b251b N	442	}
	443	if (!brief && array.raid_disks) {
	444
aba69144 NB	445	if (disk.state & (1<<MD_DISK_FAULTY)) {
aba69144 NB	446	printf(" faulty");
e5329c37 NB	447	if (disk.raid_disk < array.raid_disks &&
	448	disk.raid_disk >= 0)
	449	failed++;
	450	}
cd29a5c8 NB	451	if (disk.state & (1<<MD_DISK_ACTIVE)) printf(" active");
	452	if (disk.state & (1<<MD_DISK_SYNC)) printf(" sync");
	453	if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed");
b0c63f32 NB	454	if (disk.state & (1<<MD_DISK_WRITEMOSTLY)) printf(" writemostly");
	455	if ((disk.state &
	456	((1<<MD_DISK_ACTIVE)\|(1<<MD_DISK_SYNC)\|(1<<MD_DISK_REMOVED)))
	457	== 0) {
	458	printf(" spare");
e5329c37 NB	459	if (is_26) {
	460	if (disk.raid_disk < array.raid_disks && disk.raid_disk >= 0)
	461	printf(" rebuilding");
	462	} else if (is_rebuilding && failed) {
	463	/* Taking a bit of a risk here, we remove the
	464	* device from the array, and then put it back.
	465	* If this fails, we are rebuilding
	466	*/
0df46c2a NB	467	int err = ioctl(fd, HOT_REMOVE_DISK, makedev(disk.major, disk.minor));
0df46c2a NB	468	if (err == 0) ioctl(fd, HOT_ADD_DISK, makedev(disk.major, disk.minor));
e5329c37 NB	469	if (err && errno == EBUSY)
	470	printf(" rebuilding");
	471	}
	472	}
feb716e9	473	}
e5329c37	474	if (disk.state == 0) spares++;
a77be586 NB	475	if (test && d < array.raid_disks
a77be586 NB	476	&& !(disk.state & (1<<MD_DISK_SYNC)))
feb716e9	477	rv \|= 1;
a77be586 NB	478	if (d < array.raid_disks
	479	&& (disk.state & (1<<MD_DISK_SYNC))) {
	480	avail_disks ++;
	481	avail[d] = 1;
cd29a5c8	482	}
16c6fa80	483	if ((dv=map_dev(disk.major, disk.minor, 0))) {
d013a55e NB	484	if (brief) {
	485	if (devices) {
	486	devices = realloc(devices,
	487	strlen(devices)+1+strlen(dv)+1);
	488	strcat(strcat(devices,","),dv);
	489	} else
	490	devices = strdup(dv);
	491	} else
	492	printf(" %s", dv);
82b27616	493	}
cd29a5c8	494	if (!brief) printf("\n");
64c4757e	495	}
c69b251b	496	if (spares && brief && array.raid_disks) printf(" spares=%d", spares);
3da92f27 NB	497	if (brief && st && st->sb)
	498	st->ss->brief_detail_super(st);
	499	st->ss->free_super(st);
4b1ac34b	500
22892d56	501	if (brief > 1 && devices) printf("\n devices=%s", devices);
cd29a5c8	502	if (brief) printf("\n");
a77be586 NB	503	if (test &&
	504	!enough(array.level, array.raid_disks, array.layout,
	505	1, avail, avail_disks))
	506	rv = 2;
	507
a328c097	508	out:
e5329c37	509	close(fd);
feb716e9	510	return rv;
64c4757e	511	}