2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2001-2006 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@cse.unsw.edu.au>
24 * School of Computer Science and Engineering
25 * The University of New South Wales
29 * Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004,
30 * Paul Clements, SteelEye Technology, Inc.
38 int main(int argc
, char *argv
[])
52 int max_disks
= MD_SB_DISKS
; /* just a default */
54 struct mddev_ident_s ident
;
55 char *configfile
= NULL
;
64 char *bitmap_file
= NULL
;
65 char *backup_file
= NULL
;
66 int bitmap_chunk
= UnSet
;
68 mddev_dev_t devlist
= NULL
;
69 mddev_dev_t
*devlistend
= & devlist
;
79 char *symlinks
= NULL
;
80 /* autof indicates whether and how to create device node.
81 * bottom 3 bits are style. Rest (when shifted) are number of parts
83 * 1 - don't create (no)
84 * 2 - if is_standard, then create (yes)
85 * 3 - create as 'md' - reject is_standard mdp (md)
86 * 4 - create as 'mdp' - reject is_standard md (mdp)
87 * 5 - default to md if not is_standard (md in config file)
88 * 6 - default to mdp if not is_standard (part, or mdp in config file)
92 char *homehost
= NULL
;
93 char sys_hostname
[256];
94 char *mailaddr
= NULL
;
100 struct supertype
*ss
= NULL
;
103 char *shortopt
= short_options
;
106 int auto_update_home
= 0;
114 srandom(time(0) ^ getpid());
118 ident
.raid_disks
= UnSet
;
119 ident
.super_minor
= UnSet
;
121 ident
.spare_group
= NULL
;
124 ident
.bitmap_fd
= -1;
125 ident
.bitmap_file
= NULL
;
128 while ((option_index
= -1) ,
129 (opt
=getopt_long(argc
, argv
,
130 shortopt
, long_options
,
131 &option_index
)) != -1) {
133 /* firstly, some mode-independant options */
136 if (option_index
> 0 &&
137 strcmp(long_options
[option_index
].name
, "help-options")==0)
144 fputs(Version
, stderr
);
154 if (mode
== ASSEMBLE
|| mode
== BUILD
|| mode
== CREATE
|| mode
== GROW
)
155 break; /* b means bitmap */
158 fprintf(stderr
, Name
": -b cannot have any extra immediately after it, sorry.\n");
172 fputs(Usage
, stderr
);
175 /* second, figure out the mode.
176 * Some options force the mode. Others
177 * set the mode if it isn't already
181 case '@': /* just incase they say --manage */
183 shortopt
= short_bitmap_options
;
188 case ReAdd
: /* re-add */
191 shortopt
= short_bitmap_options
;
195 case 'A': newmode
= ASSEMBLE
; shortopt
= short_bitmap_auto_options
; break;
196 case 'B': newmode
= BUILD
; shortopt
= short_bitmap_auto_options
; break;
197 case 'C': newmode
= CREATE
; shortopt
= short_bitmap_auto_options
; break;
198 case 'F': newmode
= MONITOR
;break;
199 case 'G': newmode
= GROW
;
200 shortopt
= short_bitmap_options
;
202 case 'I': newmode
= INCREMENTAL
;
203 shortopt
= short_bitmap_auto_options
; break;
205 newmode
= AUTODETECT
; break;
211 case 'Q': newmode
= MISC
; break;
218 case 'K': if (!mode
) newmode
= MISC
; break;
220 if (mode
&& newmode
== mode
) {
221 /* everybody happy ! */
222 } else if (mode
&& newmode
!= mode
) {
224 fprintf(stderr
, Name
": ");
225 if (option_index
>= 0)
226 fprintf(stderr
, "--%s", long_options
[option_index
].name
);
228 fprintf(stderr
, "-%c", opt
);
229 fprintf(stderr
, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n",
230 map_num(modes
, newmode
),
231 map_num(modes
, mode
));
233 } else if (!mode
&& newmode
) {
236 /* special case of -c --help */
238 ( strncmp(optarg
, "--h", 3)==0 ||
239 strncmp(optarg
, "-h", 2)==0)) {
240 fputs(Help_config
, stdout
);
244 /* If first option is a device, don't force the mode yet */
246 if (devs_found
== 0) {
247 dv
= malloc(sizeof(*dv
));
249 fprintf(stderr
, Name
": malloc failed\n");
252 dv
->devname
= optarg
;
253 dv
->disposition
= devmode
;
254 dv
->writemostly
= writemostly
;
259 devlistend
= &dv
->next
;
264 /* No mode yet, and this is the second device ... */
265 fprintf(stderr
, Name
": An option must be given to set the mode before a second device is listed\n");
268 if (option_index
>= 0)
269 fprintf(stderr
, Name
": --%s", long_options
[option_index
].name
);
271 fprintf(stderr
, Name
": -%c", opt
);
272 fprintf(stderr
, " does not set the mode, and so cannot be the first option.\n");
276 /* if we just set the mode, then done */
290 /* an undecorated option - must be a device name.
292 if (devs_found
> 0 && mode
== '@' && !devmode
) {
293 fprintf(stderr
, Name
": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg
);
296 if (devs_found
> 0 && mode
== 'G' && !devmode
) {
297 fprintf(stderr
, Name
": Must give one of -a for devices do add: %s\n", optarg
);
300 dv
= malloc(sizeof(*dv
));
302 fprintf(stderr
, Name
": malloc failed\n");
305 dv
->devname
= optarg
;
306 dv
->disposition
= devmode
;
307 dv
->writemostly
= writemostly
;
311 devlistend
= &dv
->next
;
317 /* We've got a mode, and opt is now something else which
318 * could depend on the mode */
319 #define O(a,b) ((a<<8)|b)
320 switch (O(mode
,opt
)) {
322 case O(BUILD
,'c'): /* chunk or rounding */
324 fprintf(stderr
, Name
": chunk/rounding may only be specified once. "
325 "Second value is %s.\n", optarg
);
328 chunk
= strtol(optarg
, &c
, 10);
329 if (!optarg
[0] || *c
|| chunk
<4 || ((chunk
-1)&chunk
)) {
330 fprintf(stderr
, Name
": invalid chunk/rounding value: %s\n",
336 case O(ASSEMBLE
,AutoHomeHost
):
337 auto_update_home
= 1;
339 case O(INCREMENTAL
, 'e'):
341 case O(ASSEMBLE
,'e'):
342 case O(MISC
,'e'): /* set metadata (superblock) information */
344 fprintf(stderr
, Name
": metadata information already given\n");
347 for(i
=0; !ss
&& superlist
[i
]; i
++)
348 ss
= superlist
[i
]->match_metadata_desc(optarg
);
351 fprintf(stderr
, Name
": unrecognised metadata identifier: %s\n", optarg
);
354 max_disks
= ss
->max_devs
;
360 /* set write-mostly for following devices */
365 case O(CREATE
,'z'): /* size */
367 fprintf(stderr
, Name
": size may only be specified once. "
368 "Second value is %s.\n", optarg
);
371 if (strcmp(optarg
, "max")==0)
374 size
= strtoll(optarg
, &c
, 10);
375 if (!optarg
[0] || *c
|| size
< 4) {
376 fprintf(stderr
, Name
": invalid size: %s\n",
383 case O(GROW
,'l'): /* hack - needed to understand layout */
385 case O(BUILD
,'l'): /* set raid level*/
386 if (level
!= UnSet
) {
387 fprintf(stderr
, Name
": raid level may only be set once. "
388 "Second value is %s.\n", optarg
);
391 level
= map_name(pers
, optarg
);
392 if (level
== UnSet
) {
393 fprintf(stderr
, Name
": invalid raid level: %s\n",
397 if (level
!= 0 && level
!= -1 && level
!= 1 && level
!= -4 && level
!= -5 && mode
== BUILD
) {
398 fprintf(stderr
, Name
": Raid level %s not permitted with --build.\n",
402 if (sparedisks
> 0 && level
< 1 && level
>= -1) {
403 fprintf(stderr
, Name
": raid level %s is incompatible with spare-devices setting.\n",
410 case O(CREATE
,'p'): /* raid5 layout */
411 case O(BUILD
,'p'): /* faulty layout */
412 case O(GROW
, 'p'): /* faulty reconfig */
413 if (layout
!= UnSet
) {
414 fprintf(stderr
,Name
": layout may only be sent once. "
415 "Second value was %s\n", optarg
);
420 fprintf(stderr
, Name
": layout not meaningful for %s arrays.\n",
421 map_num(pers
, level
));
424 fprintf(stderr
, Name
": raid level must be given before layout.\n");
429 layout
= map_name(r5layout
, optarg
);
431 fprintf(stderr
, Name
": layout %s not understood for raid5.\n",
438 /* 'f', 'o' or 'n' followed by a number <= raid_disks */
439 if ((optarg
[0] != 'n' && optarg
[0] != 'f' && optarg
[0] != 'o') ||
440 (copies
= strtoul(optarg
+1, &cp
, 10)) < 1 ||
443 fprintf(stderr
, Name
": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg
);
446 if (optarg
[0] == 'n')
447 layout
= 256 + copies
;
448 else if (optarg
[0] == 'o')
449 layout
= 0x10000 + (copies
<<8) + 1;
451 layout
= 1 + (copies
<<8);
458 int ln
= strcspn(optarg
, "0123456789");
459 char *m
= strdup(optarg
);
462 mode
= map_name(faultylayout
, m
);
464 fprintf(stderr
, Name
": layout %s not understood for faulty.\n",
468 layout
= mode
| (atoi(optarg
+ln
)<< ModeShift
);
473 case O(CREATE
,AssumeClean
):
474 case O(BUILD
,AssumeClean
): /* assume clean */
480 case O(BUILD
,'n'): /* number of raid disks */
482 fprintf(stderr
, Name
": raid-devices set twice: %d and %s\n",
486 raiddisks
= strtol(optarg
, &c
, 10);
487 if (!optarg
[0] || *c
|| raiddisks
<=0) {
488 fprintf(stderr
, Name
": invalid number of raid devices: %s\n",
492 ident
.raid_disks
= raiddisks
;
495 case O(CREATE
,'x'): /* number of spare (eXtra) discs */
497 fprintf(stderr
,Name
": spare-devices set twice: %d and %s\n",
501 if (level
!= UnSet
&& level
<= 0 && level
>= -1) {
502 fprintf(stderr
, Name
": spare-devices setting is incompatible with raid level %d\n",
506 sparedisks
= strtol(optarg
, &c
, 10);
507 if (!optarg
[0] || *c
|| sparedisks
< 0) {
508 fprintf(stderr
, Name
": invalid number of spare-devices: %s\n",
516 case O(INCREMENTAL
,'a'):
517 case O(ASSEMBLE
,'a'): /* auto-creation of device node */
518 autof
= parse_auto(optarg
, "--auto flag", 0);
521 case O(CREATE
,Symlinks
):
522 case O(BUILD
,Symlinks
):
523 case O(ASSEMBLE
,Symlinks
): /* auto creation of symlinks in /dev to /dev/md */
527 case O(BUILD
,'f'): /* force honouring '-n 1' */
528 case O(GROW
,'f'): /* ditto */
529 case O(CREATE
,'f'): /* force honouring of device list */
530 case O(ASSEMBLE
,'f'): /* force assembly */
531 case O(MISC
,'f'): /* force zero */
535 /* now for the Assemble options */
536 case O(CREATE
,'u'): /* uuid of array */
537 case O(ASSEMBLE
,'u'): /* uuid of array */
538 if (ident
.uuid_set
) {
539 fprintf(stderr
, Name
": uuid cannot be set twice. "
540 "Second value %s.\n", optarg
);
543 if (parse_uuid(optarg
, ident
.uuid
))
546 fprintf(stderr
,Name
": Bad uuid: %s\n", optarg
);
552 case O(ASSEMBLE
,'N'):
554 fprintf(stderr
, Name
": name cannot be set twice. "
555 "Second value %s.\n", optarg
);
558 if (strlen(optarg
) > 32) {
559 fprintf(stderr
, Name
": name '%s' is too long, 32 chars max.\n",
563 strcpy(ident
.name
, optarg
);
566 case O(ASSEMBLE
,'m'): /* super-minor for array */
567 if (ident
.super_minor
!= UnSet
) {
568 fprintf(stderr
, Name
": super-minor cannot be set twice. "
569 "Second value: %s.\n", optarg
);
572 if (strcmp(optarg
, "dev")==0)
573 ident
.super_minor
= -2;
575 ident
.super_minor
= strtoul(optarg
, &cp
, 10);
576 if (!optarg
[0] || *cp
) {
577 fprintf(stderr
, Name
": Bad super-minor number: %s.\n", optarg
);
583 case O(ASSEMBLE
,'U'): /* update the superblock */
585 fprintf(stderr
, Name
": Can only update one aspect of superblock, both %s and %s given.\n",
590 if (strcmp(update
, "sparc2.2")==0)
592 if (strcmp(update
, "super-minor") == 0)
594 if (strcmp(update
, "summaries")==0)
596 if (strcmp(update
, "resync")==0)
598 if (strcmp(update
, "uuid")==0)
600 if (strcmp(update
, "name")==0)
602 if (strcmp(update
, "homehost")==0)
604 if (strcmp(update
, "devicesize")==0)
606 if (strcmp(update
, "byteorder")==0) {
608 fprintf(stderr
, Name
": must not set metadata type with --update=byteorder.\n");
611 for(i
=0; !ss
&& superlist
[i
]; i
++)
612 ss
= superlist
[i
]->match_metadata_desc("0.swap");
614 fprintf(stderr
, Name
": INTERNAL ERROR cannot find 0.swap\n");
620 if (strcmp(update
,"?") == 0 ||
621 strcmp(update
, "help") == 0) {
623 fprintf(outf
, Name
": ");
627 Name
": '--update=%s' is invalid. ",
630 fprintf(outf
, "Valid --update options are:\n"
631 " 'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n"
632 " 'summaries', 'homehost', 'byteorder', 'devicesize'.\n");
633 exit(outf
== stdout
? 0 : 2);
635 case O(ASSEMBLE
,NoDegraded
): /* --no-degraded */
636 runstop
= -1; /* --stop isn't allowed for --assemble,
637 * so we overload slightly */
640 case O(ASSEMBLE
,'c'): /* config file */
641 case O(INCREMENTAL
, 'c'):
645 fprintf(stderr
, Name
": configfile cannot be set twice. "
646 "Second value is %s.\n", optarg
);
650 set_conffile(configfile
);
651 /* FIXME possibly check that config file exists. Even parse it */
653 case O(ASSEMBLE
,'s'): /* scan */
656 case O(INCREMENTAL
,'s'):
660 case O(MONITOR
,'m'): /* mail address */
662 fprintf(stderr
, Name
": only specify one mailaddress. %s ignored.\n",
668 case O(MONITOR
,'p'): /* alert program */
670 fprintf(stderr
, Name
": only specify one alter program. %s ignored.\n",
676 case O(MONITOR
,'d'): /* delay in seconds */
678 case O(BUILD
,'d'): /* delay for bitmap updates */
681 fprintf(stderr
, Name
": only specify delay once. %s ignored.\n",
684 delay
= strtol(optarg
, &c
, 10);
685 if (!optarg
[0] || *c
|| delay
<1) {
686 fprintf(stderr
, Name
": invalid delay: %s\n",
692 case O(MONITOR
,'f'): /* daemonise */
695 case O(MONITOR
,'i'): /* pid */
697 fprintf(stderr
, Name
": only specify one pid file. %s ignored.\n",
702 case O(MONITOR
,'1'): /* oneshot */
705 case O(MONITOR
,'t'): /* test */
708 case O(MONITOR
,'y'): /* log messages to syslog */
709 openlog("mdadm", LOG_PID
, SYSLOG_FACILITY
);
713 /* now the general management options. Some are applicable
714 * to other modes. None have arguments.
717 case O(MANAGE
,'a'): /* add a drive */
721 case O(MANAGE
,ReAdd
):
725 case O(MANAGE
,'r'): /* remove a drive */
728 case O(MANAGE
,'f'): /* set faulty */
731 case O(INCREMENTAL
,'R'):
733 case O(ASSEMBLE
,'R'):
735 case O(CREATE
,'R'): /* Run the array */
737 fprintf(stderr
, Name
": Cannot both Stop and Run an array\n");
744 fprintf(stderr
, Name
": Cannot both Run and Stop an array\n");
752 fprintf(stderr
, Name
": Cannot have both readonly and readwrite\n");
759 fprintf(stderr
, Name
": Cannot have both readwrite and readonly.\n");
775 case O(MISC
, Waitclean
):
776 if (devmode
&& devmode
!= opt
&&
777 (devmode
== 'E' || (opt
== 'E' && devmode
!= 'Q'))) {
778 fprintf(stderr
, Name
": --examine/-E cannot be given with -%c\n",
779 devmode
=='E'?opt
:devmode
);
788 case O(MISC
, Sparc22
):
789 if (devmode
!= 'E') {
790 fprintf(stderr
, Name
": --sparc2.2 only allowed with --examine\n");
796 case O(ASSEMBLE
,'b'): /* here we simply set the bitmap file */
798 fprintf(stderr
, Name
": bitmap file needed with -b in --assemble mode\n");
801 if (strcmp(optarg
, "internal")==0) {
802 fprintf(stderr
, Name
": there is no need to specify --bitmap when assembling arrays with internal bitmaps\n");
805 bitmap_fd
= open(optarg
, O_RDWR
);
806 if (!*optarg
|| bitmap_fd
< 0) {
807 fprintf(stderr
, Name
": cannot open bitmap file %s: %s\n", optarg
, strerror(errno
));
810 ident
.bitmap_fd
= bitmap_fd
; /* for Assemble */
813 case O(ASSEMBLE
, BackupFile
):
814 case O(GROW
, BackupFile
):
815 /* Specify a file into which grow might place a backup,
816 * or from which assemble might recover a backup
819 fprintf(stderr
, Name
": backup file already specified, rejecting %s\n", optarg
);
822 backup_file
= optarg
;
826 case O(CREATE
,'b'): /* here we create the bitmap */
827 if (strcmp(optarg
, "none") == 0) {
828 fprintf(stderr
, Name
": '--bitmap none' only"
829 " support for --grow\n");
834 if (strcmp(optarg
, "internal")== 0 ||
835 strcmp(optarg
, "none")== 0 ||
836 strchr(optarg
, '/') != NULL
) {
837 bitmap_file
= optarg
;
841 fprintf(stderr
, Name
": bitmap file must contain a '/', or be 'internal', or 'none'\n");
844 case O(GROW
,BitmapChunk
):
845 case O(BUILD
,BitmapChunk
):
846 case O(CREATE
,BitmapChunk
): /* bitmap chunksize */
847 bitmap_chunk
= strtol(optarg
, &c
, 10);
848 if (!optarg
[0] || *c
|| bitmap_chunk
< 0 ||
849 bitmap_chunk
& (bitmap_chunk
- 1)) {
850 fprintf(stderr
, Name
": invalid bitmap chunksize: %s\n",
854 /* convert K to B, chunk of 0K means 512B */
855 bitmap_chunk
= bitmap_chunk
? bitmap_chunk
* 1024 : 512;
858 case O(GROW
, WriteBehind
):
859 case O(BUILD
, WriteBehind
):
860 case O(CREATE
, WriteBehind
): /* write-behind mode */
861 write_behind
= DEFAULT_MAX_WRITE_BEHIND
;
863 write_behind
= strtol(optarg
, &c
, 10);
864 if (write_behind
< 0 || *c
||
865 write_behind
> 16383) {
866 fprintf(stderr
, Name
": Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg
);
872 case O(INCREMENTAL
, 'r'):
876 /* We have now processed all the valid options. Anything else is
879 if (option_index
> 0)
880 fprintf(stderr
, Name
":option --%s not valid in %s mode\n",
881 long_options
[option_index
].name
,
882 map_num(modes
, mode
));
884 fprintf(stderr
, Name
": option -%c not valid in %s mode\n",
885 opt
, map_num(modes
, mode
));
891 char *help_text
= Help
;
893 help_text
= OptionHelp
;
896 case ASSEMBLE
: help_text
= Help_assemble
; break;
897 case BUILD
: help_text
= Help_build
; break;
898 case CREATE
: help_text
= Help_create
; break;
899 case MANAGE
: help_text
= Help_manage
; break;
900 case MISC
: help_text
= Help_misc
; break;
901 case MONITOR
: help_text
= Help_monitor
; break;
902 case GROW
: help_text
= Help_grow
; break;
903 case INCREMENTAL
:help_text
= Help_incr
; break;
905 fputs(help_text
,stdout
);
909 if (!mode
&& devs_found
) {
912 if (devlist
->disposition
== 0)
913 devlist
->disposition
= devmode
;
916 fputs(Usage
, stderr
);
921 struct createinfo
*ci
= conf_get_create_info();
923 if (strcasecmp(symlinks
, "yes") == 0)
925 else if (strcasecmp(symlinks
, "no") == 0)
928 fprintf(stderr
, Name
": option --symlinks must be 'no' or 'yes'\n");
932 /* Ok, got the option parsing out of the way
933 * hopefully it's mostly right but there might be some stuff
936 * That is mosty checked in the per-mode stuff but...
938 * For @,B,C and A without -s, the first device listed must be an md device
939 * we check that here and open it.
942 if (mode
==MANAGE
|| mode
== BUILD
|| mode
== CREATE
|| mode
== GROW
||
943 (mode
== ASSEMBLE
&& ! scan
)) {
944 if (devs_found
< 1) {
945 fprintf(stderr
, Name
": an md device must be given in this mode\n");
948 if ((int)ident
.super_minor
== -2 && autof
) {
949 fprintf(stderr
, Name
": --super-minor=dev is incompatible with --auto\n");
952 if (mode
== MANAGE
|| mode
== GROW
)
953 autof
=1; /* Don't create */
954 mdfd
= open_mddev(devlist
->devname
, autof
);
957 if ((int)ident
.super_minor
== -2) {
960 ident
.super_minor
= minor(stb
.st_rdev
);
965 if (raiddisks
> max_disks
) {
966 fprintf(stderr
, Name
": invalid number of raid devices: %d\n",
970 if (raiddisks
== 1 && !force
&& level
!= -5) {
971 fprintf(stderr
, Name
": '1' is an unusual number of drives for an array, so it is probably\n"
972 " a mistake. If you really mean it you will need to specify --force before\n"
973 " setting the number of drives.\n");
978 if ( sparedisks
> max_disks
- raiddisks
) {
979 fprintf(stderr
, Name
": invalid number of spare-devices: %d\n",
985 if (homehost
== NULL
)
986 homehost
= conf_get_homehost();
987 if (homehost
&& strcmp(homehost
, "<system>")==0) {
988 if (gethostname(sys_hostname
, sizeof(sys_hostname
)) == 0) {
989 sys_hostname
[sizeof(sys_hostname
)-1] = 0;
990 homehost
= sys_hostname
;
997 /* readonly, add/remove, readwrite, runstop */
999 rv
= Manage_ro(devlist
->devname
, mdfd
, readonly
);
1000 if (!rv
&& devs_found
>1)
1001 rv
= Manage_subdevs(devlist
->devname
, mdfd
,
1002 devlist
->next
, verbose
-quiet
);
1003 if (!rv
&& readonly
< 0)
1004 rv
= Manage_ro(devlist
->devname
, mdfd
, readonly
);
1006 rv
= Manage_runstop(devlist
->devname
, mdfd
, runstop
, quiet
);
1009 if (devs_found
== 1 && ident
.uuid_set
== 0 &&
1010 ident
.super_minor
== UnSet
&& ident
.name
[0] == 0 && !scan
) {
1011 /* Only a device has been given, so get details from config file */
1012 mddev_ident_t array_ident
= conf_get_ident(devlist
->devname
);
1013 if (array_ident
== NULL
) {
1014 fprintf(stderr
, Name
": %s not identified in config file.\n",
1018 mdfd
= open_mddev(devlist
->devname
,
1019 array_ident
->autof
? array_ident
->autof
: autof
);
1023 rv
|= Assemble(ss
, devlist
->devname
, mdfd
, array_ident
,
1025 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
1030 rv
= Assemble(ss
, devlist
->devname
, mdfd
, &ident
,
1031 devlist
->next
, backup_file
,
1032 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
1033 else if (devs_found
>0) {
1034 if (update
&& devs_found
> 1) {
1035 fprintf(stderr
, Name
": can only update a single array at a time\n");
1038 if (backup_file
&& devs_found
> 1) {
1039 fprintf(stderr
, Name
": can only assemble a single array when providing a backup file.\n");
1042 for (dv
= devlist
; dv
; dv
=dv
->next
) {
1043 mddev_ident_t array_ident
= conf_get_ident(dv
->devname
);
1044 if (array_ident
== NULL
) {
1045 fprintf(stderr
, Name
": %s not identified in config file.\n",
1050 mdfd
= open_mddev(dv
->devname
,
1051 array_ident
->autof
?array_ident
->autof
: autof
);
1056 rv
|= Assemble(ss
, dv
->devname
, mdfd
, array_ident
,
1058 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
1062 mddev_ident_t array_list
= conf_get_ident(NULL
);
1063 mddev_dev_t devlist
= conf_get_devs();
1065 if (devlist
== NULL
) {
1066 fprintf(stderr
, Name
": No devices listed in conf file were found.\n");
1070 fprintf(stderr
, Name
": --update not meaningful with a --scan assembly.\n");
1074 fprintf(stderr
, Name
": --backup_file not meaningful with a --scan assembly.\n");
1077 for (; array_list
; array_list
= array_list
->next
) {
1078 mdu_array_info_t array
;
1079 mdfd
= open_mddev(array_list
->devname
,
1080 array_list
->autof
? array_list
->autof
: autof
);
1085 if (ioctl(mdfd
, GET_ARRAY_INFO
, &array
)>=0)
1086 /* already assembled, skip */
1089 rv
|= Assemble(ss
, array_list
->devname
, mdfd
,
1092 readonly
, runstop
, NULL
, homehost
, verbose
-quiet
, force
);
1098 /* Maybe we can auto-assemble something.
1099 * Repeatedly call Assemble in auto-assmble mode
1104 ident
.autof
= autof
;
1106 mddev_dev_t devlist
= conf_get_devs();
1109 rv2
= Assemble(ss
, NULL
, -1,
1112 readonly
, runstop
, NULL
, homehost
, verbose
-quiet
, force
);
1118 /* found something so even though assembly failed we
1119 * want to avoid auto-updates
1121 auto_update_home
= 0;
1123 /* Incase there are stacked devices, we need to go around again */
1125 if (cnt
== 0 && auto_update_home
&& homehost
) {
1126 /* Nothing found, maybe we need to bootstrap homehost info */
1130 rv2
= Assemble(ss
, NULL
, -1,
1133 readonly
, runstop
, "homehost", homehost
, verbose
-quiet
, force
);
1139 /* Incase there are stacked devices, we need to go around again */
1142 if (cnt
== 0 && rv
== 0) {
1143 fprintf(stderr
, Name
": No arrays found in config file or automatically\n");
1147 } else if (cnt
== 0 && rv
== 0) {
1148 fprintf(stderr
, Name
": No arrays found in config file\n");
1154 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1155 if (write_behind
&& !bitmap_file
) {
1156 fprintf(stderr
, Name
": write-behind mode requires a bitmap.\n");
1160 if (raiddisks
== 0) {
1161 fprintf(stderr
, Name
": no raid-devices specified.\n");
1167 if (strcmp(bitmap_file
, "internal")==0) {
1168 fprintf(stderr
, Name
": 'internal' bitmaps not supported with --build\n");
1173 rv
= Build(devlist
->devname
, mdfd
, chunk
, level
, layout
,
1174 raiddisks
, devlist
->next
, assume_clean
,
1175 bitmap_file
, bitmap_chunk
, write_behind
, delay
, verbose
-quiet
);
1178 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1179 if (write_behind
&& !bitmap_file
) {
1180 fprintf(stderr
, Name
": write-behind mode requires a bitmap.\n");
1184 if (raiddisks
== 0) {
1185 fprintf(stderr
, Name
": no raid-devices specified.\n");
1190 rv
= Create(ss
, devlist
->devname
, mdfd
, chunk
, level
, layout
, size
<0 ? 0 : size
,
1191 raiddisks
, sparedisks
, ident
.name
, homehost
,
1192 ident
.uuid_set
? ident
.uuid
: NULL
,
1193 devs_found
-1, devlist
->next
, runstop
, verbose
-quiet
, force
, assume_clean
,
1194 bitmap_file
, bitmap_chunk
, write_behind
, delay
);
1197 if (devmode
== 'E') {
1198 if (devlist
== NULL
&& !scan
) {
1199 fprintf(stderr
, Name
": No devices to examine\n");
1202 if (devlist
== NULL
)
1203 devlist
= conf_get_devs();
1204 if (devlist
== NULL
) {
1205 fprintf(stderr
, Name
": No devices listed in %s\n", configfile
?configfile
:DefaultConfFile
);
1208 if (brief
&& verbose
)
1210 rv
= Examine(devlist
, scan
?(verbose
>1?0:verbose
+1):brief
,
1212 SparcAdjust
, ss
, homehost
);
1214 if (devlist
== NULL
) {
1215 if (devmode
=='D' && scan
) {
1216 /* apply --detail to all devices in /proc/mdstat */
1217 struct mdstat_ent
*ms
= mdstat_read(0, 1);
1218 struct mdstat_ent
*e
;
1219 for (e
=ms
; e
; e
=e
->next
) {
1220 char *name
= get_md_name(e
->devnum
);
1223 fprintf(stderr
, Name
": cannot find device file for %s\n",
1227 rv
|= Detail(name
, verbose
>1?0:verbose
+1,
1228 export
, test
, homehost
);
1231 } else if (devmode
== 'S' && scan
) {
1232 /* apply --stop to all devices in /proc/mdstat */
1233 /* Due to possible stacking of devices, repeat until
1234 * nothing more can be stopped
1236 int progress
=1, err
;
1239 struct mdstat_ent
*ms
= mdstat_read(0, 0);
1240 struct mdstat_ent
*e
;
1242 if (!progress
) last
= 1;
1243 progress
= 0; err
= 0;
1244 for (e
=ms
; e
; e
=e
->next
) {
1245 char *name
= get_md_name(e
->devnum
);
1248 fprintf(stderr
, Name
": cannot find device file for %s\n",
1252 mdfd
= open_mddev(name
, 1);
1254 if (Manage_runstop(name
, mdfd
, -1, quiet
?1:last
?0:-1))
1263 } while (!last
&& err
);
1266 fprintf(stderr
, Name
": No devices given.\n");
1270 for (dv
=devlist
; dv
; dv
=dv
->next
) {
1271 switch(dv
->disposition
) {
1273 rv
|= Detail(dv
->devname
,
1275 export
, test
, homehost
);
1277 case 'K': /* Zero superblock */
1278 rv
|= Kill(dv
->devname
, force
, quiet
,0);
1281 rv
|= Query(dv
->devname
); continue;
1283 rv
|= ExamineBitmap(dv
->devname
, brief
, ss
); continue;
1285 rv
|= Wait(dv
->devname
); continue;
1287 rv
|= WaitClean(dv
->devname
); continue;
1289 mdfd
= open_mddev(dv
->devname
, 1);
1291 switch(dv
->disposition
) {
1293 rv
|= Manage_runstop(dv
->devname
, mdfd
, 1, quiet
); break;
1295 rv
|= Manage_runstop(dv
->devname
, mdfd
, -1, quiet
); break;
1297 rv
|= Manage_ro(dv
->devname
, mdfd
, 1); break;
1299 rv
|= Manage_ro(dv
->devname
, mdfd
, -1); break;
1308 if (!devlist
&& !scan
) {
1309 fprintf(stderr
, Name
": Cannot monitor: need --scan or at least one device\n");
1313 if (pidfile
&& !daemonise
) {
1314 fprintf(stderr
, Name
": Cannot write a pid file when not in daemon mode\n");
1318 rv
= Monitor(devlist
, mailaddr
, program
,
1319 delay
?delay
:60, daemonise
, scan
, oneshot
,
1320 dosyslog
, test
, pidfile
);
1324 if (devs_found
> 1) {
1327 if (size
>= 0 || raiddisks
) {
1328 fprintf(stderr
, Name
": --size, --raiddisks, and --add are exclusing in --grow mode\n");
1332 for (dv
=devlist
->next
; dv
; dv
=dv
->next
) {
1333 rv
= Grow_Add_device(devlist
->devname
, mdfd
, dv
->devname
);
1337 } else if ((size
>= 0) + (raiddisks
!= 0) + (layout
!= UnSet
) + (bitmap_file
!= NULL
)> 1) {
1338 fprintf(stderr
, Name
": can change at most one of size, raiddisks, bitmap, and layout\n");
1341 } else if (layout
!= UnSet
)
1342 rv
= Manage_reconfig(devlist
->devname
, mdfd
, layout
);
1343 else if (size
>= 0 || raiddisks
)
1344 rv
= Grow_reshape(devlist
->devname
, mdfd
, quiet
, backup_file
,
1345 size
, level
, layout
, chunk
, raiddisks
);
1346 else if (bitmap_file
) {
1347 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1348 rv
= Grow_addbitmap(devlist
->devname
, mdfd
, bitmap_file
,
1349 bitmap_chunk
, delay
, write_behind
, force
);
1351 fprintf(stderr
, Name
": no changes to --grow\n");
1359 fprintf(stderr
, Name
1360 ": --incremental --scan meaningless without --run.\n");
1363 rv
= IncrementalScan(verbose
);
1366 if (!rebuild_map
&& !scan
) {
1367 fprintf(stderr
, Name
1368 ": --incremental requires a device.\n");
1373 if (devlist
->next
) {
1374 fprintf(stderr
, Name
1375 ": --incremental can only handle one device.\n");
1379 rv
= Incremental(devlist
->devname
, verbose
-quiet
, runstop
,
1380 ss
, homehost
, autof
);