/*
* 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 Detail(char *dev, int brief, int export, int test, char *homehost, char *prefer)
{
/*
* Print out details for an md array by using
int is_26 = get_linux_version() >= 2006000;
int is_rebuilding = 0;
int failed = 0;
- struct supertype *st = NULL;
+ struct supertype *st;
+ char *subarray = NULL;
int max_disks = MD_SB_DISKS; /* just a default */
- struct mdinfo info;
+ struct mdinfo *info = NULL;
struct mdinfo *sra;
+ char *member = NULL;
+ char *container = NULL;
int rv = test ? 4 : 1;
int avail_disks = 0;
- char *avail;
+ char *avail = NULL;
if (fd < 0) {
- fprintf(stderr, Name ": cannot open %s: %s\n",
+ pr_err("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",
+ pr_err("%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",
+ pr_err("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",
+ pr_err("md device %s does not appear to be active.\n",
dev);
else
- fprintf(stderr, Name ": cannot get array detail for %s: %s\n",
+ pr_err("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);
+ st = super_by_fd(fd, &subarray);
if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
stb.st_rdev = 0;
rv = 0;
- if (st) max_disks = st->max_devs;
+ if (st)
+ max_disks = st->max_devs;
+
+ if (subarray) {
+ /* This is a subarray of some container.
+ * We want the name of the container, and the member
+ */
+ int dn = st->container_dev;
+
+ member = subarray;
+ container = map_dev_preferred(dev2major(dn), dev2minor(dn), 1, prefer);
+ }
/* try to load a superblock */
- for (d= 0; d<max_disks; d++) {
+ if (st) for (d = 0; d < max_disks; d++) {
mdu_disk_info_t disk;
char *dv;
+ int fd2;
+ int err;
disk.number = d;
if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
continue;
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);
- }
+
+ if (array.raid_disks > 0 &&
+ (disk.state & (1 << MD_DISK_ACTIVE)) == 0)
+ continue;
+
+ dv = map_dev(disk.major, disk.minor, 1);
+ if (!dv)
+ continue;
+
+ fd2 = dev_open(dv, O_RDONLY);
+ if (fd2 < 0)
+ continue;
+
+ if (st->sb)
+ st->ss->free_super(st);
+
+ err = st->ss->load_super(st, fd2, NULL);
+ close(fd2);
+ if (err)
+ continue;
+ if (info)
+ free(info);
+ if (subarray)
+ info = st->ss->container_content(st, subarray);
+ else {
+ info = malloc(sizeof(*info));
+ st->ss->getinfo_super(st, info, NULL);
+ }
+ if (!info)
+ continue;
+
+ if (array.raid_disks != 0 && /* container */
+ (info->array.ctime != array.ctime ||
+ info->array.level != array.level)) {
+ st->ss->free_super(st);
+ continue;
+ }
+ /* some formats (imsm) have free-floating-spares
+ * with a uuid of uuid_zero, 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.
+ */
+ if (memcmp(uuid_zero,
+ info->uuid,
+ sizeof(uuid_zero)) == 0) {
+ st->ss->free_super(st);
+ continue;
}
+ break;
}
/* Ok, we have some info to print... */
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.%d\n",
+ array.major_version, array.minor_version);
+ }
+
+ if (st && st->sb && info) {
+ char nbuf[64];
+ struct map_ent *mp, *map = NULL;
- if (st && st->sb)
- st->ss->export_detail_super(st);
+ 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->ss->export_detail_super)
+ st->ss->export_detail_super(st);
+ } else {
+ struct map_ent *mp, *map = NULL;
+ char nbuf[64];
+ mp = map_by_devnum(&map, fd2devnum(fd));
+ if (mp) {
+ __fname_from_uuid(mp->uuid, 0, nbuf, ':');
+ printf("MD_UUID=%s\n", nbuf+5);
+ }
+ if (mp && mp->path &&
+ strncmp(mp->path, "/dev/md/", 8) == 0)
+ printf("MD_DEVNAME=%s\n", mp->path+8);
+ }
goto out;
}
+ 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)
+ pr_err("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 < array.raid_disks; d++) {
+ mdu_disk_info_t disk = disks[d];
+
+ if ((disk.state & (1<<MD_DISK_SYNC))) {
+ avail_disks ++;
+ avail[d] = 1;
+ }
+ }
+
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.%d",
+ 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) == (unsigned)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.%d\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) {
+ static char *sync_action[] = {", recovering",", resyncing",", reshaping",", checking"};
+ char *st;
+ if (avail_disks == array.raid_disks)
+ st = "";
+ else if (!enough(array.level, array.raid_disks,
+ array.layout, 1, avail))
+ st = ", FAILED";
+ else
+ st = ", degraded";
+
+ printf(" State : %s%s%s%s%s%s \n",
+ (array.state&(1<<MD_SB_CLEAN))?"clean":"active", st,
+ (!e || (e->percent < 0 && e->percent != RESYNC_PENDING &&
+ e->percent != RESYNC_DELAYED)) ? "" : sync_action[e->resync],
+ larray_size ? "": ", Not Started",
+ e->percent == RESYNC_DELAYED ? " (DELAYED)": "",
+ e->percent == RESYNC_PENDING ? " (PENDING)": "");
+ }
+ 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);
printf(" Layout : %s\n", c?c:"-unknown-");
}
+ if (array.level == 6) {
+ c = map_num(r6layout, 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);
+ printf(" Layout :");
+ print_r10_layout(array.layout);
+ printf("\n");
}
switch (array.level) {
case 0:
}
if (e && e->percent >= 0) {
- printf(" Re%s Status : %d%% complete\n",
- (st && st->sb && info.reshape_active)?
- "shape":"build",
- e->percent);
+ static char *sync_action[] = {"Rebuild", "Resync", "Reshape", "Check"};
+ printf(" %7s Status : %d%% complete\n", sync_action[e->resync], e->percent);
is_rebuilding = 1;
}
free_mdstat(ms);
- if (st->sb && info.reshape_active) {
+ 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));
+ printf(" Reshape pos'n : %llu%s\n", (unsigned long long) info->reshape_progress<<9,
+ human_size((unsigned long long)info->reshape_progress<<9));
#endif
- if (info.delta_disks > 0)
+ 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);
+ info->delta_disks, array.raid_disks - info->delta_disks, array.raid_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);
+ 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 == 6) {
+ char *c = map_num(r6layout, info->new_layout);
printf(" New Layout : %s\n",
c?c:"-unknown-");
}
- if (info.new_level == 10) {
+ 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);
+ 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);
+ 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);
- printf(" Number Major Minor RaidDevice State\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;
- }
+ 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;
- 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;
+ 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(vbuf+9) ||
+ strncmp(vbuf+10, sra->sys_name, nlen) != 0 ||
+ vbuf[10+nlen] != '/')
+ continue;
+ dn = devname2devnum(de->d_name);
+ printf(" %s", map_dev_preferred(
+ dev2major(dn),
+ dev2minor(dn), 1, prefer));
+ }
+ if (dir)
+ closedir(dir);
+ printf("\n\n");
}
- 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;
+
+ if (array.raid_disks)
+ printf(" Number Major Minor RaidDevice State\n");
+ else
+ printf(" Number Major Minor RaidDevice\n");
}
+ free(info);
- avail = calloc(array.raid_disks, 1);
for (d= 0; d < max_disks; d++) {
char *dv;
mdu_disk_info_t disk = 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 &&
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_SYNC)) {
+ printf(" sync");
+ if (array.level == 10 && (array.layout & ~0x1FFFF) == 0) {
+ int nc = array.layout & 0xff;
+ int fc = (array.layout >> 8) & 0xff;
+ int copies = nc*fc;
+ if (array.raid_disks % copies == 0 && copies <= 26) {
+ /* We can divide the devices into 'sets' */
+ int set = disk.raid_disk % copies;
+ printf(" set-%c", set + 'A');
+ }
+ }
+ }
if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed");
if (disk.state & (1<<MD_DISK_WRITEMOSTLY)) printf(" writemostly");
if ((disk.state &
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 ((dv=map_dev_preferred(disk.major, disk.minor, 0, prefer))) {
if (brief) {
if (devices) {
devices = realloc(devices,
}
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);
if (brief) printf("\n");
if (test &&
!enough(array.level, array.raid_disks, array.layout,
- 1, avail, avail_disks))
+ 1, avail))
rv = 2;
+ free(disks);
out:
close(fd);
+ free(subarray);
+ free(avail);
+ sysfs_free(sra);
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)
+ pr_err("%s metadata is platform independent\n",
+ ss->name ? : "[no name]");
+ } else if (!scan) {
+ if (verbose)
+ pr_err("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)
+ pr_err("checking metadata %s\n",
+ meta->name ? : "[no name]");
+ if (!meta->detail_platform) {
+ if (verbose)
+ pr_err("%s metadata is platform independent\n",
+ meta->name ? : "[no name]");
+ } else
+ err |= meta->detail_platform(verbose, 0);
+ }
+
+ return err;
+}
projects / thirdparty / mdadm.git / blobdiff