/*
- * mdctl - manage Linux "md" devices aka RAID arrays.
+ * mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Australia
*/
-#include "mdctl.h"
+#include "mdadm.h"
#include "md_p.h"
#include "md_u.h"
-int Detail(char *dev)
+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, 0);
+ 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;
- mdp_super_t super;
- int have_super = 0;
+ 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 1;
+ 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 1;
+ return rv;
}
if (vers < 9000) {
fprintf(stderr, Name ": cannot get detail for md device %s: driver version too old.\n",
dev);
close(fd);
- return 1;
+ return rv;
}
if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
if (errno == ENODEV)
fprintf(stderr, Name ": cannot get array detail for %s: %s\n",
dev, strerror(errno));
close(fd);
- return 1;
+ 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;
+
+ /* 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... */
- printf("%s:\n", dev);
- printf(" Version : %02d.%02d.%02d\n",
- array.major_version, array.minor_version, array.patch_version);
- atime = array.ctime;
- printf(" Creation Time : %.24s\n", ctime(&atime));
c = map_num(pers, array.level);
- printf(" Raid Level : %s\n", c?c:"-unknown-");
- printf(" Size : %d\n", array.size);
- printf(" Raid Disks : %d\n", array.raid_disks);
- printf(" Total Disks : %d\n", array.nr_disks);
- printf("Preferred Minor : %d\n", array.md_minor);
- printf(" Persistance : Superblock is %spersistant\n",
- array.not_persistent?"not ":"");
- printf("\n");
- atime = array.utime;
- printf(" Update Time : %.24s\n", ctime(&atime));
- printf(" State : %s, %serrors\n",
- (array.state&(1<<MD_SB_CLEAN))?"clean":"dirty",
- (array.state&(1<<MD_SB_ERRORS))?"":"no-");
- printf(" Active Drives : %d\n", array.active_disks);
- printf(" Working Drives : %d\n", array.working_disks);
- printf(" Failed Drives : %d\n", array.failed_disks);
- printf(" Spare Drives : %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 (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 (st && st->sb)
+ st->ss->export_detail_super(st);
+ 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);
+
+ /* 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 (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;
+ 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));
+ }
+ 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 (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;
+ 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);
+ printf("Working Devices : %d\n", array.working_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);
+
+ printf(" Number Major Minor RaidDevice State\n");
}
- switch (array.level) {
- case 0:
- case 4:
- case 5:
- printf(" Chunk Size : %dK\n", array.chunk_size/1024);
- break;
- case -1:
- printf(" Rounding : %dK\n", array.chunk_size/1024);
- break;
- default: break;
+ 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;
}
-
- printf("\n");
- printf(" Number Major Minor RaidDisk State\n");
- for (d= 0; d<array.nr_disks; d++) {
+
+ next = array.raid_disks;
+ 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) {
- fprintf(stderr, Name ": cannot get disk detail for disk %d: %s\n",
- d, strerror(errno));
+ if (d < array.raid_disks)
+ fprintf(stderr, Name ": cannot get device detail for device %d: %s\n",
+ d, strerror(errno));
continue;
}
- printf(" %5d %5d %5d %5d ",
- disk.number, disk.major, disk.minor, disk.raid_disk);
- if (disk.state & (1<<MD_DISK_FAULTY)) printf(" faulty");
- 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 ((dv=map_dev(disk.major, disk.minor))) {
- printf(" %s", dv);
- if (!have_super) {
- /* try to read the superblock from this device
- * to get more info
- */
- int fd = open(dv, O_RDONLY);
- if (fd >=0 &&
- load_super(fd, &super) ==0 &&
- super.ctime == array.ctime &&
- super.level == array.level)
- have_super = 1;
- }
- }
- printf("\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 (have_super) {
- if (super.minor_version >= 90)
- printf(" UUID : %08x:%08x:%08x:%08x\n", super.set_uuid0, super.set_uuid1,
- super.set_uuid2, super.set_uuid3);
- else
- printf(" UUID : %08x\n", super.set_uuid0);
+
+ 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 (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");
}
- return 0;
+ if (spares && brief) 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;
}
projects / thirdparty / mdadm.git / blobdiff