/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* 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
+ * Email: <neilb@suse.de>
*/
#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)
{
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;
stb.st_rdev = 0;
rv = 0;
- if (st) max_disks = st->max_devs;
+ 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++) {
disk.minor == 0)
continue;
if ((dv=map_dev(disk.major, disk.minor, 1))) {
- if ((!st || !st->sb) &&
- (disk.state & (1<<MD_DISK_ACTIVE))) {
+ /* some formats (imsm) have free-floating-spares
+ * with a uuid of uuid_match_any, they don't
+ * have very good info about the rest of the
+ * container, so keep searching when
+ * encountering such a device. Otherwise, stop
+ * after the first successful call to
+ * ->load_super.
+ */
+ int free_spare = memcmp(uuid_match_any,
+ info.uuid,
+ sizeof(uuid_match_any)) == 0;
+ if ((!st || !st->sb || free_spare) &&
+ (array.raid_disks == 0 ||
+ (disk.state & (1<<MD_DISK_ACTIVE)))) {
/* try to read the superblock from this device
* to get more info
*/
+ if (free_spare)
+ st->ss->free_super(st);
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)
+ 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);
c = map_num(pers, array.level);
if (export) {
- if (c)
- printf("MD_LEVEL=%s\n", c);
- printf("MD_DEVICES=%d\n", array.raid_disks);
- 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 (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];
+ struct map_ent *mp, *map = NULL;
+ st->ss->getinfo_super(st, &info);
+ fname_from_uuid(st, &info, nbuf, ':');
+ printf("MD_UUID=%s\n", nbuf+5);
+ mp = map_by_uuid(&map, info.uuid);
+ if (mp && mp->path &&
+ strncmp(mp->path, "/dev/md/", 8) == 0)
+ printf("MD_DEVNAME=%s\n", mp->path+8);
- if (st && st->sb)
- st->ss->export_detail_super(st);
+ if (st->ss->export_detail_super)
+ st->ss->export_detail_super(st);
+ } else {
+ struct map_ent *mp, *map = NULL;
+ mp = map_by_devnum(&map, fd2devnum(fd));
+ if (mp && mp->path &&
+ strncmp(mp->path, "/dev/md/", 8) == 0)
+ printf("MD_DEVNAME=%s\n", mp->path+8);
+ }
goto out;
}
if (brief) {
mdu_bitmap_file_t bmf;
- printf("ARRAY %s level=%s num-devices=%d", dev,
- c?c:"-unknown-",
- array.raid_disks );
- if (sra && sra->array.major_version < 0)
- printf(" metadata=%s", sra->text_version);
- else
- printf(" metadata=%02d.%02d",
- array.major_version, array.minor_version);
+ printf("ARRAY %s", dev);
+ if (brief > 1) {
+ if (array.raid_disks)
+ printf("level=%s num-devices=%d",
+ c?c:"-unknown-",
+ array.raid_disks );
+ else
+ printf("level=container num-devices=%d",
+ 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 &&
struct mdstat_ent *ms = mdstat_read(0, 0);
struct mdstat_ent *e;
int devnum = array.md_minor;
- if (major(stb.st_rdev) != MD_MAJOR)
+ if (major(stb.st_rdev) == get_mdp_major())
devnum = -1 - devnum;
for (e=ms; e; e=e->next)
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",
+ printf(" Version : %d.%02d\n",
array.major_version, array.minor_version);
+ }
atime = array.ctime;
- printf(" Creation Time : %.24s\n", ctime(&atime));
+ 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)
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));
+ dsize/2,
+ human_size((long long)dsize<<9));
else
printf(" Used Dev Size : unknown\n");
} else
printf(" Used Dev Size : %d%s\n", array.size,
human_size((long long)array.size<<10));
}
- printf(" Raid Devices : %d\n", array.raid_disks);
+ if (array.raid_disks)
+ printf(" Raid Devices : %d\n", array.raid_disks);
printf(" Total Devices : %d\n", array.nr_disks);
- printf("Preferred Minor : %d\n", array.md_minor);
+ 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 ":"");
} else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
printf(" Intent Bitmap : Internal\n\n");
atime = array.utime;
- printf(" Update Time : %.24s\n", ctime(&atime));
- 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");
- printf(" Active Devices : %d\n", array.active_disks);
+ 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);
- printf(" Failed Devices : %d\n", array.failed_disks);
- printf(" Spare Devices : %d\n", array.spare_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);
if (st && st->sb)
st->ss->detail_super(st, homehost);
- printf(" Number Major Minor RaidDevice State\n");
+ 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++) {
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 &&
}
if (!brief) printf("\n");
}
- if (spares && brief) printf(" spares=%d", spares);
+ 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);
close(fd);
return rv;
}
+
+int Detail_Platform(struct superswitch *ss, int scan, int verbose)
+{
+ /* display platform capabilities for the given metadata format
+ * 'scan' in this context means iterate over all metadata types
+ */
+ int i;
+ int err = 1;
+
+ if (ss && ss->detail_platform)
+ err = ss->detail_platform(verbose, 0);
+ else if (ss) {
+ if (verbose)
+ fprintf(stderr, Name ": %s metadata is platform independent\n",
+ ss->name ? : "[no name]");
+ } else if (!scan) {
+ if (verbose)
+ fprintf(stderr, Name ": specify a metadata type or --scan\n");
+ }
+
+ if (!scan)
+ return err;
+
+ for (i = 0; superlist[i]; i++) {
+ struct superswitch *meta = superlist[i];
+
+ if (meta == ss)
+ continue;
+ if (verbose)
+ fprintf(stderr, Name ": checking metadata %s\n",
+ meta->name ? : "[no name]");
+ if (!meta->detail_platform) {
+ if (verbose)
+ fprintf(stderr, Name ": %s metadata is platform independent\n",
+ meta->name ? : "[no name]");
+ } else
+ err |= meta->detail_platform(verbose, 0);
+ }
+
+ return err;
+}
projects / thirdparty / mdadm.git / blobdiff