]>
git.ipfire.org Git - thirdparty/mdadm.git/blob - Create.c
2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
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.
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.
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
22 * Email: <neilb@suse.de>
30 static int default_layout(struct supertype
*st
, int level
, int verbose
)
34 if (st
&& st
->ss
->default_geometry
)
35 st
->ss
->default_geometry(st
, &level
, &layout
, NULL
);
39 default: /* no layout */
43 layout
= 0x102; /* near=2, far=1 */
46 Name
": layout defaults to n2\n");
50 layout
= map_name(r5layout
, "default");
53 Name
": layout defaults to %s\n", map_num(r5layout
, layout
));
56 layout
= map_name(faultylayout
, "default");
60 Name
": layout defaults to %s\n", map_num(faultylayout
, layout
));
68 int Create(struct supertype
*st
, char *mddev
,
69 int chunk
, int level
, int layout
, unsigned long long size
,
70 int raiddisks
, int sparedisks
,
71 char *name
, char *homehost
, int *uuid
,
72 int subdevs
, struct mddev_dev
*devlist
,
73 int runstop
, int verbose
, int force
, int assume_clean
,
74 char *bitmap_file
, int bitmap_chunk
, int write_behind
,
78 * Create a new raid array.
80 * First check that necessary details are available
81 * (i.e. level, raid-disks)
83 * Then check each disk to see what might be on it
84 * and report anything interesting.
86 * If anything looks odd, and runstop not set,
89 * SET_ARRAY_INFO and ADD_NEW_DISK, and
90 * if runstop==run, or raiddisks disks were used,
94 unsigned long long minsize
=0, maxsize
=0;
101 int first_missing
= subdevs
* 2;
102 int second_missing
= subdevs
* 2;
103 int missing_disks
= 0;
104 int insert_point
= subdevs
* 2; /* where to insert a missing drive */
110 int have_container
= 0;
111 int container_fd
= -1;
113 unsigned long long bitmapsize
;
114 struct mdinfo info
, *infos
;
116 int do_default_layout
= 0;
117 int do_default_chunk
= 0;
118 unsigned long safe_mode_delay
= 0;
119 char chosen_name
[1024];
120 struct map_ent
*map
= NULL
;
121 unsigned long long newsize
;
123 int major_num
= BITMAP_MAJOR_HI
;
125 memset(&info
, 0, sizeof(info
));
126 if (level
== UnSet
&& st
&& st
->ss
->default_geometry
)
127 st
->ss
->default_geometry(st
, &level
, NULL
, NULL
);
128 if (level
== UnSet
) {
130 Name
": a RAID level is needed to create an array.\n");
133 if (raiddisks
< 4 && level
== 6) {
135 Name
": at least 4 raid-devices needed for level 6\n");
138 if (raiddisks
> 256 && level
== 6) {
140 Name
": no more than 256 raid-devices supported for level 6\n");
143 if (raiddisks
< 2 && level
>= 4) {
145 Name
": at least 2 raid-devices needed for level 4 or 5\n");
148 if (level
<= 0 && sparedisks
) {
150 Name
": This level does not support spare devices\n");
154 if (subdevs
== 1 && strcmp(devlist
->devname
, "missing") != 0) {
155 /* If given a single device, it might be a container, and we can
156 * extract a device list from there
158 mdu_array_info_t inf
;
161 memset(&inf
, 0, sizeof(inf
));
162 fd
= open(devlist
->devname
, O_RDONLY
);
164 ioctl(fd
, GET_ARRAY_INFO
, &inf
) == 0 &&
165 inf
.raid_disks
== 0) {
166 /* yep, looks like a container */
168 rv
= st
->ss
->load_container(st
, fd
,
173 st
= super_by_fd(fd
, NULL
);
174 if (st
&& !(rv
= st
->ss
->
175 load_container(st
, fd
,
181 if (have_container
) {
183 first_missing
= subdevs
* 2;
184 second_missing
= subdevs
* 2;
185 insert_point
= subdevs
* 2;
191 if (st
&& st
->ss
->external
&& sparedisks
) {
193 Name
": This metadata type does not support "
194 "spare disks at create time\n");
197 if (subdevs
> raiddisks
+sparedisks
) {
198 fprintf(stderr
, Name
": You have listed more devices (%d) than are in the array(%d)!\n", subdevs
, raiddisks
+sparedisks
);
201 if (!have_container
&& subdevs
< raiddisks
+sparedisks
) {
202 fprintf(stderr
, Name
": You haven't given enough devices (real or missing) to create this array\n");
205 if (bitmap_file
&& level
<= 0) {
206 fprintf(stderr
, Name
": bitmaps not meaningful with level %s\n",
207 map_num(pers
, level
)?:"given");
211 /* now set some defaults */
214 if (layout
== UnSet
) {
215 do_default_layout
= 1;
216 layout
= default_layout(st
, level
, verbose
);
220 /* check layout fits in array*/
221 if ((layout
&255) * ((layout
>>8)&255) > raiddisks
) {
222 fprintf(stderr
, Name
": that layout requires at least %d devices\n",
223 (layout
&255) * ((layout
>>8)&255));
233 if (chunk
== 0 || chunk
== UnSet
) {
235 do_default_chunk
= 1;
236 /* chunk will be set later */
240 /* a chunksize of zero 0s perfectly valid (and preferred) since 2.6.16 */
241 if (get_linux_version() < 2006016 && chunk
== 0) {
244 fprintf(stderr
, Name
": chunk size defaults to 64K\n");
249 case LEVEL_MULTIPATH
:
250 case LEVEL_CONTAINER
:
254 fprintf(stderr
, Name
": chunk size ignored for this level\n");
258 fprintf(stderr
, Name
": unknown level %d\n", level
);
262 if (size
&& chunk
&& chunk
!= UnSet
)
263 size
&= ~(unsigned long long)(chunk
- 1);
265 if (st
&& ! st
->ss
->validate_geometry(st
, level
, layout
, raiddisks
,
266 &chunk
, size
*2, NULL
, &newsize
, verbose
>=0))
269 if (chunk
&& chunk
!= UnSet
) {
270 newsize
&= ~(unsigned long long)(chunk
*2 - 1);
271 if (do_default_chunk
) {
272 /* default chunk was just set */
274 fprintf(stderr
, Name
": chunk size "
275 "defaults to %dK\n", chunk
);
276 size
&= ~(unsigned long long)(chunk
- 1);
277 do_default_chunk
= 0;
283 if (size
&& verbose
> 0)
284 fprintf(stderr
, Name
": setting size to %lluK\n",
285 (unsigned long long)size
);
288 /* now look at the subdevs */
289 info
.array
.active_disks
= 0;
290 info
.array
.working_disks
= 0;
292 for (dv
=devlist
; dv
&& !have_container
; dv
=dv
->next
, dnum
++) {
293 char *dname
= dv
->devname
;
294 unsigned long long freesize
;
295 if (strcasecmp(dname
, "missing")==0) {
296 if (first_missing
> dnum
)
297 first_missing
= dnum
;
298 if (second_missing
> dnum
&& dnum
> first_missing
)
299 second_missing
= dnum
;
303 info
.array
.working_disks
++;
304 if (dnum
< raiddisks
)
305 info
.array
.active_disks
++;
307 struct createinfo
*ci
= conf_get_create_info();
312 /* Need to choose a default metadata, which is different
313 * depending on geometry of array.
316 char *name
= "default";
317 for(i
=0; !st
&& superlist
[i
]; i
++) {
318 st
= superlist
[i
]->match_metadata_desc(name
);
319 if (do_default_layout
)
320 layout
= default_layout(st
, level
, verbose
);
321 if (st
&& !st
->ss
->validate_geometry
322 (st
, level
, layout
, raiddisks
,
323 &chunk
, size
*2, dname
, &freesize
,
327 chunk
= do_default_chunk
? UnSet
: chunk
;
332 fprintf(stderr
, Name
": device %s not suitable "
333 "for any style of array\n",
337 if (st
->ss
!= &super0
||
338 st
->minor_version
!= 90)
341 if (do_default_layout
)
342 layout
= default_layout(st
, level
, verbose
);
343 if (!st
->ss
->validate_geometry(st
, level
, layout
,
345 &chunk
, size
*2, dname
,
350 Name
": %s is not suitable for "
358 freesize
/= 2; /* convert to K */
359 if (chunk
&& chunk
!= UnSet
) {
360 /* round to chunk size */
361 freesize
= freesize
& ~(chunk
-1);
362 if (do_default_chunk
) {
363 /* default chunk was just set */
365 fprintf(stderr
, Name
": chunk size "
366 "defaults to %dK\n", chunk
);
367 size
&= ~(unsigned long long)(chunk
- 1);
368 do_default_chunk
= 0;
372 if (size
&& freesize
< size
) {
373 fprintf(stderr
, Name
": %s is smaller than given size."
374 " %lluK < %lluK + metadata\n",
375 dname
, freesize
, size
);
379 if (maxdisc
== NULL
|| (maxdisc
&& freesize
> maxsize
)) {
383 if (mindisc
==NULL
|| (mindisc
&& freesize
< minsize
)) {
387 if (runstop
!= 1 || verbose
>= 0) {
388 int fd
= open(dname
, O_RDONLY
);
390 fprintf(stderr
, Name
": Cannot open %s: %s\n",
391 dname
, strerror(errno
));
395 warn
|= check_ext2(fd
, dname
);
396 warn
|= check_reiser(fd
, dname
);
397 warn
|= check_raid(fd
, dname
);
398 if (strcmp(st
->ss
->name
, "1.x") == 0 &&
399 st
->minor_version
>= 1)
400 /* metadata at front */
401 warn
|= check_partitions(fd
, dname
, 0, 0);
402 else if (level
== 1 || level
== LEVEL_CONTAINER
403 || (level
== 0 && raiddisks
== 1))
404 /* partitions could be meaningful */
405 warn
|= check_partitions(fd
, dname
, freesize
*2, size
*2);
407 /* partitions cannot be meaningful */
408 warn
|= check_partitions(fd
, dname
, 0, 0);
409 if (strcmp(st
->ss
->name
, "1.x") == 0 &&
410 st
->minor_version
>= 1 &&
413 (warn
& 1024) == 0) {
415 fprintf(stderr
, Name
": Note: this array has metadata at the start and\n"
416 " may not be suitable as a boot device. If you plan to\n"
417 " store '/boot' on this device please ensure that\n"
418 " your boot-loader understands md/v1.x metadata, or use\n"
419 " --metadata=0.90\n");
424 if (raiddisks
+ sparedisks
> st
->max_devs
) {
425 fprintf(stderr
, Name
": Too many devices:"
426 " %s metadata only supports %d\n",
427 st
->ss
->name
, st
->max_devs
);
431 info
.array
.working_disks
= raiddisks
;
433 fprintf(stderr
, Name
": create aborted\n");
437 if (mindisc
== NULL
&& !have_container
) {
438 fprintf(stderr
, Name
": no size and no drives given - aborting create.\n");
441 if (level
> 0 || level
== LEVEL_MULTIPATH
442 || level
== LEVEL_FAULTY
443 || st
->ss
->external
) {
444 /* size is meaningful */
445 if (!st
->ss
->validate_geometry(st
, level
, layout
,
449 fprintf(stderr
, Name
": devices too large for RAID level %d\n", level
);
454 fprintf(stderr
, Name
": size set to %lluK\n", size
);
457 if (!have_container
&& level
> 0 && ((maxsize
-size
)*100 > maxsize
)) {
458 if (runstop
!= 1 || verbose
>= 0)
459 fprintf(stderr
, Name
": largest drive (%s) exceeds size (%lluK) by more than 1%%\n",
464 if (st
->ss
->detail_platform
&& st
->ss
->detail_platform(0, 1) != 0) {
465 if (runstop
!= 1 || verbose
>= 0)
466 fprintf(stderr
, Name
": %s unable to enumerate platform support\n"
467 " array may not be compatible with hardware/firmware\n",
474 if (!ask("Continue creating array? ")) {
475 fprintf(stderr
, Name
": create aborted.\n");
480 fprintf(stderr
, Name
": creation continuing despite oddities due to --run\n");
484 /* If this is raid4/5, we want to configure the last active slot
485 * as missing, so that a reconstruct happens (faster than re-parity)
486 * FIX: Can we do this for raid6 as well?
488 if (st
->ss
->external
== 0 &&
489 assume_clean
==0 && force
== 0 && first_missing
>= raiddisks
) {
493 insert_point
= raiddisks
-1;
495 info
.array
.active_disks
--;
502 /* For raid6, if creating with 1 missing drive, make a good drive
503 * into a spare, else the create will fail
505 if (assume_clean
== 0 && force
== 0 && first_missing
< raiddisks
&&
506 st
->ss
->external
== 0 &&
507 second_missing
>= raiddisks
&& level
== 6) {
508 insert_point
= raiddisks
- 1;
509 if (insert_point
== first_missing
)
512 info
.array
.active_disks
--;
516 if (level
<= 0 && first_missing
< subdevs
* 2) {
518 Name
": This level does not support missing devices\n");
522 /* We need to create the device */
524 mdfd
= create_mddev(mddev
, name
, autof
, LOCAL
, chosen_name
);
529 vers
= md_get_version(mdfd
);
531 fprintf(stderr
, Name
": Create requires md driver version 0.90.0 or later\n");
534 mdu_array_info_t inf
;
535 memset(&inf
, 0, sizeof(inf
));
536 ioctl(mdfd
, GET_ARRAY_INFO
, &inf
);
537 if (inf
.working_disks
!= 0) {
538 fprintf(stderr
, Name
": another array by this name"
539 " is already running.\n");
544 /* Ok, lets try some ioctls */
546 info
.array
.level
= level
;
547 info
.array
.size
= size
;
548 info
.array
.raid_disks
= raiddisks
;
549 /* The kernel should *know* what md_minor we are dealing
550 * with, but it chooses to trust me instead. Sigh
552 info
.array
.md_minor
= 0;
553 if (fstat(mdfd
, &stb
)==0)
554 info
.array
.md_minor
= minor(stb
.st_rdev
);
555 info
.array
.not_persistent
= 0;
557 if ( ( (level
== 4 || level
== 5) &&
558 (insert_point
< raiddisks
|| first_missing
< raiddisks
) )
560 ( level
== 6 && (insert_point
< raiddisks
561 || second_missing
< raiddisks
))
567 info
.array
.state
= 1; /* clean, but one+ drive will be missing*/
568 info
.resync_start
= MaxSector
;
570 info
.array
.state
= 0; /* not clean, but no errors */
571 info
.resync_start
= 0;
574 /* for raid10, the bitmap size is the capacity of the array,
575 * which is array.size * raid_disks / ncopies;
576 * .. but convert to sectors.
578 int ncopies
= ((layout
>>8) & 255) * (layout
& 255);
579 bitmapsize
= (unsigned long long)size
* raiddisks
/ ncopies
* 2;
580 /* printf("bms=%llu as=%d rd=%d nc=%d\n", bitmapsize, size, raiddisks, ncopies);*/
582 bitmapsize
= (unsigned long long)size
* 2;
584 /* There is lots of redundancy in these disk counts,
585 * raid_disks is the most meaningful value
586 * it describes the geometry of the array
588 * nr_disks is total number of used slots.
589 * it should be raid_disks+spare_disks
590 * spare_disks is the number of extra disks present
592 * active_disks is the number of working disks in
593 * active slots. (With raid_disks)
594 * working_disks is the total number of working disks,
596 * failed_disks is the number of disks marked failed
598 * Ideally, the kernel would keep these (except raid_disks)
599 * up-to-date as we ADD_NEW_DISK, but it doesn't (yet).
600 * So for now, we assume that all raid and spare
601 * devices will be given.
603 info
.array
.spare_disks
=sparedisks
;
604 info
.array
.failed_disks
=missing_disks
;
605 info
.array
.nr_disks
= info
.array
.working_disks
606 + info
.array
.failed_disks
;
607 info
.array
.layout
= layout
;
608 info
.array
.chunk_size
= chunk
*1024;
610 if (name
== NULL
|| *name
== 0) {
611 /* base name on mddev */
616 * /dev/md/home -> home
617 * /dev/mdhome -> home
619 /* FIXME compare this with rules in create_mddev */
620 name
= strrchr(mddev
, '/');
623 if (strncmp(name
, "md_d", 4)==0 &&
626 (name
-mddev
) == 5 /* /dev/ */)
628 else if (strncmp(name
, "md", 2)==0 &&
631 (name
-mddev
) == 5 /* /dev/ */)
635 if (!st
->ss
->init_super(st
, &info
.array
, size
, name
, homehost
, uuid
))
638 total_slots
= info
.array
.nr_disks
;
639 sysfs_init(&info
, mdfd
, 0);
640 st
->ss
->getinfo_super(st
, &info
, NULL
);
642 if (did_default
&& verbose
>= 0) {
643 if (is_subarray(info
.text_version
)) {
644 int dnum
= devname2devnum(info
.text_version
+1);
646 int mdp
= get_mdp_major();
649 path
= map_dev(MD_MAJOR
, dnum
, 1);
651 path
= map_dev(mdp
, (-1-dnum
)<< 6, 1);
653 mdi
= sysfs_read(-1, dnum
, GET_VERSION
);
655 fprintf(stderr
, Name
": Creating array inside "
657 mdi
?mdi
->text_version
:"managed", path
);
660 fprintf(stderr
, Name
": Defaulting to version"
661 " %s metadata\n", info
.text_version
);
664 map_update(&map
, fd2devnum(mdfd
), info
.text_version
,
665 info
.uuid
, chosen_name
);
668 if (bitmap_file
&& vers
< 9003) {
669 major_num
= BITMAP_MAJOR_HOSTENDIAN
;
671 fprintf(stderr
, Name
": Warning - bitmaps created on this kernel are not portable\n"
672 " between different architectured. Consider upgrading the Linux kernel.\n");
676 if (bitmap_file
&& strcmp(bitmap_file
, "internal")==0) {
677 if ((vers
%100) < 2) {
678 fprintf(stderr
, Name
": internal bitmaps not supported by this kernel.\n");
681 if (!st
->ss
->add_internal_bitmap
) {
682 fprintf(stderr
, Name
": internal bitmaps not supported with %s metadata\n",
686 if (!st
->ss
->add_internal_bitmap(st
, &bitmap_chunk
,
688 bitmapsize
, 1, major_num
)) {
689 fprintf(stderr
, Name
": Given bitmap chunk size not supported.\n");
696 sysfs_init(&info
, mdfd
, 0);
698 if (st
->ss
->external
&& st
->container_dev
!= NoMdDev
) {
701 /* When creating a member, we need to be careful
702 * to negotiate with mdmon properly.
703 * If it is already running, we cannot write to
704 * the devices and must ask it to do that part.
705 * If it isn't running, we write to the devices,
707 * We hold an exclusive open on the container
708 * device to make sure mdmon doesn't exit after
709 * we checked that it is running.
711 * For now, fail if it is already running.
713 container_fd
= open_dev_excl(st
->container_dev
);
714 if (container_fd
< 0) {
715 fprintf(stderr
, Name
": Cannot get exclusive "
716 "open on container - weird.\n");
719 if (mdmon_running(st
->container_dev
)) {
721 fprintf(stderr
, Name
": reusing mdmon "
723 devnum2devname(st
->container_dev
));
724 st
->update_tail
= &st
->updates
;
728 rv
= set_array_info(mdfd
, st
, &info
);
730 fprintf(stderr
, Name
": failed to set array info for %s: %s\n",
731 mddev
, strerror(errno
));
738 st
->ss
->uuid_from_super(st
, uuid
);
739 if (CreateBitmap(bitmap_file
, force
, (char*)uuid
, bitmap_chunk
,
745 bitmap_fd
= open(bitmap_file
, O_RDWR
);
747 fprintf(stderr
, Name
": weird: %s cannot be openned\n",
751 if (ioctl(mdfd
, SET_BITMAP_FILE
, bitmap_fd
) < 0) {
752 fprintf(stderr
, Name
": Cannot set bitmap file for %s: %s\n",
753 mddev
, strerror(errno
));
758 infos
= malloc(sizeof(*infos
) * total_slots
);
760 for (pass
=1; pass
<=2 ; pass
++) {
761 struct mddev_dev
*moved_disk
= NULL
; /* the disk that was moved out of the insert point */
763 for (dnum
=0, dv
= devlist
; dv
;
764 dv
=(dv
->next
)?(dv
->next
):moved_disk
, dnum
++) {
767 struct mdinfo
*inf
= &infos
[dnum
];
769 if (dnum
>= total_slots
)
771 if (dnum
== insert_point
) {
775 if (strcasecmp(dv
->devname
, "missing")==0)
779 if (have_container
&& dnum
< info
.array
.raid_disks
- 1)
780 /* repeatedly use the container */
787 inf
->disk
.number
= dnum
;
788 inf
->disk
.raid_disk
= dnum
;
789 if (inf
->disk
.raid_disk
< raiddisks
)
790 inf
->disk
.state
= (1<<MD_DISK_ACTIVE
) |
795 if (dv
->writemostly
== 1)
796 inf
->disk
.state
|= (1<<MD_DISK_WRITEMOSTLY
);
801 if (st
->ss
->external
&&
802 st
->container_dev
!= NoMdDev
)
803 fd
= open(dv
->devname
, O_RDWR
);
805 fd
= open(dv
->devname
, O_RDWR
|O_EXCL
);
808 fprintf(stderr
, Name
": failed to open %s "
809 "after earlier success - aborting\n",
814 inf
->disk
.major
= major(stb
.st_rdev
);
815 inf
->disk
.minor
= minor(stb
.st_rdev
);
818 remove_partitions(fd
);
819 if (st
->ss
->add_to_super(st
, &inf
->disk
,
821 ioctl(mdfd
, STOP_ARRAY
, NULL
);
824 st
->ss
->getinfo_super(st
, inf
, NULL
);
825 safe_mode_delay
= inf
->safe_mode_delay
;
827 if (have_container
&& verbose
> 0)
828 fprintf(stderr
, Name
": Using %s for device %d\n",
829 map_dev(inf
->disk
.major
,
833 if (!have_container
) {
834 /* getinfo_super might have lost these ... */
835 inf
->disk
.major
= major(stb
.st_rdev
);
836 inf
->disk
.minor
= minor(stb
.st_rdev
);
843 rv
= add_disk(mdfd
, st
, &info
, inf
);
847 Name
": ADD_NEW_DISK for %s "
849 dv
->devname
, strerror(errno
));
854 if (!have_container
&&
855 dv
== moved_disk
&& dnum
!= insert_point
) break;
858 struct mdinfo info_new
;
859 struct map_ent
*me
= NULL
;
861 /* check to see if the uuid has changed due to these
862 * metadata changes, and if so update the member array
863 * and container uuid. Note ->write_init_super clears
864 * the subarray cursor such that ->getinfo_super once
865 * again returns container info.
868 st
->ss
->getinfo_super(st
, &info_new
, NULL
);
869 if (st
->ss
->external
&& level
!= LEVEL_CONTAINER
&&
870 !same_uuid(info_new
.uuid
, info
.uuid
, 0)) {
871 map_update(&map
, fd2devnum(mdfd
),
872 info_new
.text_version
,
873 info_new
.uuid
, chosen_name
);
874 me
= map_by_devnum(&map
, st
->container_dev
);
877 st
->ss
->write_init_super(st
);
879 /* update parent container uuid */
881 char *path
= strdup(me
->path
);
883 st
->ss
->getinfo_super(st
, &info_new
, NULL
);
884 map_update(&map
, st
->container_dev
,
885 info_new
.text_version
,
886 info_new
.uuid
, path
);
891 flush_metadata_updates(st
);
892 st
->ss
->free_super(st
);
897 if (level
== LEVEL_CONTAINER
) {
898 /* No need to start. But we should signal udev to
900 sysfs_uevent(&info
, "change");
902 fprintf(stderr
, Name
": container %s prepared.\n", mddev
);
903 wait_for(chosen_name
, mdfd
);
904 } else if (runstop
== 1 || subdevs
>= raiddisks
) {
905 if (st
->ss
->external
) {
909 case LEVEL_MULTIPATH
:
911 err
= sysfs_set_str(&info
, NULL
, "array_state",
916 err
= sysfs_set_str(&info
, NULL
, "array_state",
920 sysfs_set_safemode(&info
, safe_mode_delay
);
922 fprintf(stderr
, Name
": failed to"
923 " activate array.\n");
924 ioctl(mdfd
, STOP_ARRAY
, NULL
);
928 /* param is not actually used */
930 if (ioctl(mdfd
, RUN_ARRAY
, ¶m
)) {
931 fprintf(stderr
, Name
": RUN_ARRAY failed: %s\n",
933 ioctl(mdfd
, STOP_ARRAY
, NULL
);
938 fprintf(stderr
, Name
": array %s started.\n", mddev
);
939 if (st
->ss
->external
&& st
->container_dev
!= NoMdDev
) {
941 start_mdmon(st
->container_dev
);
943 ping_monitor_by_id(st
->container_dev
);
946 wait_for(chosen_name
, mdfd
);
948 fprintf(stderr
, Name
": not starting array - not enough devices.\n");
955 map_remove(&map
, fd2devnum(mdfd
));