/*
* 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"
mddev_ident_t ident,
mddev_dev_t devlist, char *backup_file,
int readonly, int runstop,
- char *update, char *homehost,
+ char *update, char *homehost, int require_homehost,
int verbose, int force)
{
/*
int clean;
int auto_assem = (mddev == NULL && !ident->uuid_set &&
ident->super_minor == UnSet && ident->name[0] == 0
- && ident->container == NULL && ident->member == NULL);
+ && (ident->container == NULL || ident->member == NULL));
int old_linux = 0;
int vers = vers; /* Keep gcc quite - it really is initialised */
struct {
mddev_dev_t tmpdev;
struct mdinfo info;
struct mdinfo *content = NULL;
- mdu_array_info_t tmp_inf;
char *avail;
int nextspare = 0;
char *name = NULL;
if (!devlist &&
ident->uuid_set == 0 &&
ident->super_minor < 0 &&
+ ident->name[0] == 0 &&
+ (ident->container == NULL || ident->member == NULL) &&
ident->devices == NULL) {
fprintf(stderr, Name ": No identity information available for %s - cannot assemble.\n",
mddev ? mddev : "further assembly");
fprintf(stderr, Name ": no recogniseable superblock on %s\n",
devname);
tmpdev->used = 2;
+ } else if (auto_assem && st == NULL &&
+ !conf_test_metadata(tst->ss->name)) {
+ if (report_missmatch)
+ fprintf(stderr, Name ": %s has metadata type %s for which "
+ "auto-assembly is disabled\n",
+ devname, tst->ss->name);
+ tmpdev->used = 2;
} else if (tst->ss->load_super(tst,dfd, NULL)) {
if (report_missmatch)
fprintf( stderr, Name ": no RAID superblock on %s\n",
}
/* It is worth looking inside this container.
*/
+ if (verbose > 0)
+ fprintf(stderr, Name ": looking in container %s\n",
+ devname);
next_member:
if (tmpdev->content)
content = tmpdev->content;
else
content = tst->ss->container_content(tst);
+ if (!content)
+ goto loop; /* empty container */
tmpdev->content = content->next;
if (tmpdev->content == NULL)
- tmpdev->used = 1;
+ tmpdev->used = 2;
} else if (ident->container || ident->member) {
/* No chance of this matching if we don't have
* looking. If the chosen member is active, skip.
*/
if (is_member_busy(content->text_version)) {
+ if (report_missmatch)
+ fprintf(stderr, Name ": member %s in %s is already assembled\n",
+ content->text_version,
+ devname);
+ skip:
+ if (tmpdev->content)
+ goto next_member;
+ tst->ss->free_super(tst);
+ tst = NULL;
+ content = NULL;
if (auto_assem)
goto loop;
- fprintf(stderr, Name ": member %s in %s is already assembled\n",
- content->text_version,
- devname);
- tst->ss->free_super(tst);
return 1;
}
+ if (ident->member && ident->member[0]) {
+ char *s = strchr(content->text_version+1, '/');
+ if (s == NULL) {
+ fprintf(stderr, Name ": badly formatted version: %s\n",
+ content->text_version);
+ goto skip;
+ }
+ if (strcmp(ident->member, s+1) != 0) {
+ if (report_missmatch)
+ fprintf(stderr,
+ Name ": skipping wrong member %s\n",
+ content->text_version);
+ goto skip;
+ }
+ }
st = tst; tst = NULL;
if (!auto_assem && tmpdev->next != NULL) {
fprintf(stderr, Name ": %s is a container, but is not "
st->ss->free_super(st);
return 1;
}
+ if (verbose > 0)
+ fprintf(stderr, Name ": found match on member %s in %s\n",
+ content->text_version, devname);
break;
}
if (st == NULL)
if (!st || !st->sb || !content)
return 2;
- /* Now need to open array the device. Use create_mddev */
+ /* Now need to open the array device. Use create_mddev */
if (content == &info)
st->ss->getinfo_super(st, content);
trustworthy = FOREIGN;
- switch (st->ss->match_home(st, homehost)) {
- case 0:
- trustworthy = FOREIGN;
- name = content->name;
- break;
+ name = content->name;
+ switch (st->ss->match_home(st, homehost)
+ ?: st->ss->match_home(st, "any")) {
case 1:
trustworthy = LOCAL;
name = strchr(content->name, ':');
else
name = content->name;
break;
- case -1:
- trustworthy = FOREIGN;
- break;
}
- if (!auto_assem && trustworthy == FOREIGN)
- /* If the array is listed in mdadm or on
+ if (!auto_assem)
+ /* If the array is listed in mdadm.conf or on
* command line, then we trust the name
* even if the array doesn't look local
*/
trustworthy = LOCAL;
- if (content->name[0] == 0 &&
+ if (name[0] == 0 &&
content->array.level == LEVEL_CONTAINER) {
name = content->text_version;
trustworthy = METADATA;
}
+
+ if (name[0] && trustworthy != LOCAL &&
+ ! require_homehost &&
+ conf_name_is_free(name))
+ trustworthy = LOCAL;
+
+ if (trustworthy == LOCAL &&
+ strchr(name, ':'))
+ /* Ignore 'host:' prefix of name */
+ name = strchr(name, ':')+1;
+
mdfd = create_mddev(mddev, name, ident->autof, trustworthy,
chosen_name);
if (mdfd < 0) {
close(mdfd);
return 1;
}
- if (ioctl(mdfd, GET_ARRAY_INFO, &tmp_inf)==0) {
+ if (mddev_busy(fd2devnum(mdfd))) {
fprintf(stderr, Name ": %s already active, cannot restart it!\n",
mddev);
for (tmpdev = devlist ;
#endif
/* Ok, no bad inconsistancy, we can try updating etc */
bitmap_done = 0;
+ content->update_private = NULL;
for (tmpdev = devlist; tmpdev; tmpdev=tmpdev->next) if (tmpdev->used == 1) {
char *devname = tmpdev->devname;
struct stat stb;
> devices[most_recent].i.events)
most_recent = devcnt;
}
- if (content->array.level == -4)
+ if (content->array.level == LEVEL_MULTIPATH)
/* with multipath, the raid_disk from the superblock is meaningless */
i = devcnt;
else
}
devcnt++;
}
+ free(content->update_private);
+ content->update_private = NULL;
if (devcnt == 0) {
fprintf(stderr, Name ": no devices found for %s\n",
/* note: we ignore error flags in multipath arrays
* as they don't make sense
*/
- if (content->array.level != -4)
- if (!(devices[j].i.disk.state & (1<<MD_DISK_SYNC))) {
+ if (content->array.level != LEVEL_MULTIPATH)
+ if (!(devices[j].i.disk.state & (1<<MD_DISK_ACTIVE))) {
if (!(devices[j].i.disk.state
& (1<<MD_DISK_FAULTY)))
sparecnt++;
int j = best[i];
if (j>=0 &&
!devices[j].uptodate &&
- devices[j].i.events > 0 &&
(chosen_drive < 0 ||
devices[j].i.events
> devices[chosen_drive].i.events))
int j = best[i];
if (j >= 0 &&
!devices[j].uptodate &&
- devices[j].i.events > 0 &&
devices[j].i.events == current_events) {
chosen_drive = j;
goto add_another;
continue;
devices[j].i.disk.state = desired_state;
+ if (!(devices[j].i.array.state & 1))
+ clean = 0;
if (st->ss->update_super(st, &devices[j].i, "assemble", NULL,
verbose, 0, NULL)) {
if (content->reshape_active) {
int err = 0;
int *fdlist = malloc(sizeof(int)* bestcnt);
+ if (verbose > 0)
+ fprintf(stderr, Name ":%s has an active reshape - checking "
+ "if critical section needs to be restored\n",
+ chosen_name);
for (i=0; i<bestcnt; i++) {
int j = best[i];
if (j >= 0) {
fdlist[i] = -1;
}
if (!err)
- err = Grow_restart(st, content, fdlist, bestcnt, backup_file);
+ err = Grow_restart(st, content, fdlist, bestcnt, backup_file, verbose > 0);
while (i>0) {
i--;
if (fdlist[i]>=0) close(fdlist[i]);
}
if (err) {
fprintf(stderr, Name ": Failed to restore critical section for reshape, sorry.\n");
+ if (backup_file == NULL)
+ fprintf(stderr," Possibly you needed to specify the --backup-file\n");
close(mdfd);
return err;
}
fprintf(stderr, "\n");
}
sysfs_uevent(content, "change");
+ wait_for(chosen_name, mdfd);
close(mdfd);
return 0;
}
content->array.layout, clean, avail, okcnt) &&
(okcnt >= req_cnt || start_partial_ok)
))) {
- if (ioctl(mdfd, RUN_ARRAY, NULL)==0) {
+ /* This array is good-to-go.
+ * If a reshape is in progress then we might need to
+ * continue monitoring it. In that case we start
+ * it read-only and let the grow code make it writable.
+ */
+ int rv;
+#ifndef MDASSEMBLE
+ if (content->reshape_active &&
+ content->delta_disks <= 0)
+ rv = Grow_continue(mdfd, st, content, backup_file);
+ else
+#endif
+ rv = ioctl(mdfd, RUN_ARRAY, NULL);
+ if (rv == 0) {
if (verbose >= 0) {
fprintf(stderr, Name ": %s has been started with %d drive%s",
mddev, okcnt, okcnt==1?"":"s");
fprintf(stderr, " and %d spare%s", sparecnt, sparecnt==1?"":"s");
fprintf(stderr, ".\n");
}
+ if (content->reshape_active &&
+ content->array.level >= 4 &&
+ content->array.level <= 6) {
+ /* might need to increase the size
+ * of the stripe cache - default is 256
+ */
+ if (256 < 4 * (content->array.chunk_size/4096)) {
+ struct mdinfo *sra = sysfs_read(mdfd, 0, 0);
+ if (sra)
+ sysfs_set_num(sra, NULL,
+ "stripe_cache_size",
+ (4 * content->array.chunk_size / 4096) + 1);
+ }
+ }
+ wait_for(mddev, mdfd);
close(mdfd);
if (auto_assem) {
int usecs = 1;
sra = sysfs_read(mdfd, 0, GET_VERSION);
if (sra == NULL || strcmp(sra->text_version, content->text_version) != 0)
- if (sysfs_set_array(content, md_get_version(mdfd)) != 0)
+ if (sysfs_set_array(content, md_get_version(mdfd)) != 0) {
+ close(mdfd);
return 1;
+ }
if (sra)
sysfs_free(sra);
for (dev = content->devs; dev; dev = dev->next)
- if (sysfs_add_disk(content, dev) == 0)
+ if (sysfs_add_disk(content, dev, 1) == 0)
working++;
else if (errno == EEXIST)
preexist++;
- if (working == 0)
- /* Nothing new, don't try to start */ ;
- else if (runstop > 0 ||
+ if (working == 0) {
+ close(mdfd);
+ return 1;/* Nothing new, don't try to start */
+ }
+
+ map_update(&map, fd2devnum(mdfd),
+ content->text_version,
+ content->uuid, chosen_name);
+
+ if (runstop > 0 ||
(working + preexist) >= content->array.working_disks) {
+ int err;
+
switch(content->array.level) {
case LEVEL_LINEAR:
case LEVEL_MULTIPATH:
case 0:
- sysfs_set_str(content, NULL, "array_state",
- "active");
+ err = sysfs_set_str(content, NULL, "array_state",
+ "active");
break;
default:
- sysfs_set_str(content, NULL, "array_state",
+ err = sysfs_set_str(content, NULL, "array_state",
"readonly");
/* start mdmon if needed. */
- if (!mdmon_running(st->container_dev))
- start_mdmon(st->container_dev);
- ping_monitor(devnum2devname(st->container_dev));
+ if (!err) {
+ if (!mdmon_running(st->container_dev))
+ start_mdmon(st->container_dev);
+ ping_monitor(devnum2devname(st->container_dev));
+ }
break;
}
- sysfs_set_safemode(content, content->safe_mode_delay);
+ if (!err)
+ sysfs_set_safemode(content, content->safe_mode_delay);
if (verbose >= 0) {
- fprintf(stderr, Name
- ": Started %s with %d devices",
- chosen_name, working + preexist);
+ if (err)
+ fprintf(stderr, Name
+ ": array %s now has %d devices",
+ chosen_name, working + preexist);
+ else
+ fprintf(stderr, Name
+ ": Started %s with %d devices",
+ chosen_name, working + preexist);
if (preexist)
fprintf(stderr, " (%d new)", working);
fprintf(stderr, "\n");
}
+ if (!err)
+ wait_for(chosen_name, mdfd);
+ close(mdfd);
+ return 0;
/* FIXME should have an O_EXCL and wait for read-auto */
- } else
+ } else {
if (verbose >= 0)
fprintf(stderr, Name
": %s assembled with %d devices but "
"not started\n",
chosen_name, working);
- map_update(&map, fd2devnum(mdfd),
- content->text_version,
- content->uuid, chosen_name);
-
- return 0;
+ close(mdfd);
+ return 1;
+ }
}
#endif
projects / thirdparty / mdadm.git / blobdiff