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
;
78 char *symlinks
= NULL
;
79 /* autof indicates whether and how to create device node.
80 * bottom 3 bits are style. Rest (when shifted) are number of parts
82 * 1 - don't create (no)
83 * 2 - if is_standard, then create (yes)
84 * 3 - create as 'md' - reject is_standard mdp (md)
85 * 4 - create as 'mdp' - reject is_standard md (mdp)
86 * 5 - default to md if not is_standard (md in config file)
87 * 6 - default to mdp if not is_standard (part, or mdp in config file)
91 char *homehost
= NULL
;
92 char sys_hostname
[256];
93 char *mailaddr
= NULL
;
99 struct supertype
*ss
= NULL
;
102 char *shortopt
= short_options
;
104 int auto_update_home
= 0;
111 srandom(time(0) ^ getpid());
115 ident
.raid_disks
= UnSet
;
116 ident
.super_minor
= UnSet
;
118 ident
.spare_group
= NULL
;
121 ident
.bitmap_fd
= -1;
122 ident
.bitmap_file
= NULL
;
125 while ((option_index
= -1) ,
126 (opt
=getopt_long(argc
, argv
,
127 shortopt
, long_options
,
128 &option_index
)) != -1) {
130 /* firstly, some mode-independant options */
133 if (option_index
> 0 &&
134 strcmp(long_options
[option_index
].name
, "help-options")==0)
141 fputs(Version
, stderr
);
151 if (mode
== ASSEMBLE
|| mode
== BUILD
|| mode
== CREATE
|| mode
== GROW
)
152 break; /* b means bitmap */
155 fprintf(stderr
, Name
": -b cannot have any extra immediately after it, sorry.\n");
166 fputs(Usage
, stderr
);
169 /* second, figure out the mode.
170 * Some options force the mode. Others
171 * set the mode if it isn't already
175 case '@': /* just incase they say --manage */
177 shortopt
= short_bitmap_auto_options
;
182 case ReAdd
: /* re-add */
185 shortopt
= short_bitmap_auto_options
;
189 case 'A': newmode
= ASSEMBLE
; shortopt
= short_bitmap_auto_options
; break;
190 case 'B': newmode
= BUILD
; shortopt
= short_bitmap_auto_options
; break;
191 case 'C': newmode
= CREATE
; shortopt
= short_bitmap_auto_options
; break;
192 case 'F': newmode
= MONITOR
;break;
193 case 'G': newmode
= GROW
; shortopt
= short_bitmap_auto_options
; break;
199 case 'Q': newmode
= MISC
; break;
205 case 'K': if (!mode
) newmode
= MISC
; break;
207 if (mode
&& newmode
== mode
) {
208 /* everybody happy ! */
209 } else if (mode
&& newmode
!= mode
) {
211 fprintf(stderr
, Name
": ");
212 if (option_index
>= 0)
213 fprintf(stderr
, "--%s", long_options
[option_index
].name
);
215 fprintf(stderr
, "-%c", opt
);
216 fprintf(stderr
, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n",
217 map_num(modes
, newmode
),
218 map_num(modes
, mode
));
220 } else if (!mode
&& newmode
) {
223 /* special case of -c --help */
225 ( strncmp(optarg
, "--h", 3)==0 ||
226 strncmp(optarg
, "-h", 2)==0)) {
227 fputs(Help_config
, stderr
);
231 /* If first option is a device, don't force the mode yet */
233 if (devs_found
== 0) {
234 dv
= malloc(sizeof(*dv
));
236 fprintf(stderr
, Name
": malloc failed\n");
239 dv
->devname
= optarg
;
240 dv
->disposition
= devmode
;
241 dv
->writemostly
= writemostly
;
246 devlistend
= &dv
->next
;
251 /* No mode yet, and this is the second device ... */
252 fprintf(stderr
, Name
": An option must be given to set the mode before a second device is listed\n");
255 if (option_index
>= 0)
256 fprintf(stderr
, Name
": --%s", long_options
[option_index
].name
);
258 fprintf(stderr
, Name
": -%c", opt
);
259 fprintf(stderr
, " does not set the mode, and so cannot be the first option.\n");
263 /* if we just set the mode, then done */
275 /* an undecorated option - must be a device name.
277 if (devs_found
> 0 && mode
== '@' && !devmode
) {
278 fprintf(stderr
, Name
": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg
);
281 if (devs_found
> 0 && mode
== 'G' && !devmode
) {
282 fprintf(stderr
, Name
": Must give one of -a for devices do add: %s\n", optarg
);
285 dv
= malloc(sizeof(*dv
));
287 fprintf(stderr
, Name
": malloc failed\n");
290 dv
->devname
= optarg
;
291 dv
->disposition
= devmode
;
292 dv
->writemostly
= writemostly
;
296 devlistend
= &dv
->next
;
302 /* We've got a mode, and opt is now something else which
303 * could depend on the mode */
304 #define O(a,b) ((a<<8)|b)
305 switch (O(mode
,opt
)) {
307 case O(BUILD
,'c'): /* chunk or rounding */
309 fprintf(stderr
, Name
": chunk/rounding may only be specified once. "
310 "Second value is %s.\n", optarg
);
313 chunk
= strtol(optarg
, &c
, 10);
314 if (!optarg
[0] || *c
|| chunk
<4 || ((chunk
-1)&chunk
)) {
315 fprintf(stderr
, Name
": invalid chunk/rounding value: %s\n",
321 case O(ASSEMBLE
,AutoHomeHost
):
322 auto_update_home
= 1;
325 case O(ASSEMBLE
,'e'):
326 case O(MISC
,'e'): /* set metadata (superblock) information */
328 fprintf(stderr
, Name
": metadata information already given\n");
331 for(i
=0; !ss
&& superlist
[i
]; i
++)
332 ss
= superlist
[i
]->match_metadata_desc(optarg
);
335 fprintf(stderr
, Name
": unrecognised metadata identifier: %s\n", optarg
);
338 max_disks
= ss
->max_devs
;
344 /* set write-mostly for following devices */
349 case O(CREATE
,'z'): /* size */
351 fprintf(stderr
, Name
": size may only be specified once. "
352 "Second value is %s.\n", optarg
);
355 if (strcmp(optarg
, "max")==0)
358 size
= strtoll(optarg
, &c
, 10);
359 if (!optarg
[0] || *c
|| size
< 4) {
360 fprintf(stderr
, Name
": invalid size: %s\n",
367 case O(GROW
,'l'): /* hack - needed to understand layout */
369 case O(BUILD
,'l'): /* set raid level*/
370 if (level
!= UnSet
) {
371 fprintf(stderr
, Name
": raid level may only be set once. "
372 "Second value is %s.\n", optarg
);
375 level
= map_name(pers
, optarg
);
376 if (level
== UnSet
) {
377 fprintf(stderr
, Name
": invalid raid level: %s\n",
381 if (level
!= 0 && level
!= -1 && level
!= 1 && level
!= -4 && level
!= -5 && mode
== BUILD
) {
382 fprintf(stderr
, Name
": Raid level %s not permitted with --build.\n",
386 if (sparedisks
> 0 && level
< 1 && level
>= -1) {
387 fprintf(stderr
, Name
": raid level %s is incompatible with spare-devices setting.\n",
394 case O(CREATE
,'p'): /* raid5 layout */
395 case O(BUILD
,'p'): /* faulty layout */
396 case O(GROW
, 'p'): /* faulty reconfig */
397 if (layout
!= UnSet
) {
398 fprintf(stderr
,Name
": layout may only be sent once. "
399 "Second value was %s\n", optarg
);
404 fprintf(stderr
, Name
": layout not meaningful for %s arrays.\n",
405 map_num(pers
, level
));
408 fprintf(stderr
, Name
": raid level must be given before layout.\n");
413 layout
= map_name(r5layout
, optarg
);
415 fprintf(stderr
, Name
": layout %s not understood for raid5.\n",
422 /* 'f', 'o' or 'n' followed by a number <= raid_disks */
423 if ((optarg
[0] != 'n' && optarg
[0] != 'f' && optarg
[0] != 'o') ||
424 (copies
= strtoul(optarg
+1, &cp
, 10)) < 1 ||
427 fprintf(stderr
, Name
": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg
);
430 if (optarg
[0] == 'n')
431 layout
= 256 + copies
;
432 else if (optarg
[0] == 'o')
433 layout
= 0x10000 + (copies
<<8) + 1;
435 layout
= 1 + (copies
<<8);
442 int ln
= strcspn(optarg
, "0123456789");
443 char *m
= strdup(optarg
);
446 mode
= map_name(faultylayout
, m
);
448 fprintf(stderr
, Name
": layout %s not understood for faulty.\n",
452 layout
= mode
| (atoi(optarg
+ln
)<< ModeShift
);
457 case O(CREATE
,AssumeClean
):
458 case O(BUILD
,AssumeClean
): /* assume clean */
464 case O(BUILD
,'n'): /* number of raid disks */
466 fprintf(stderr
, Name
": raid-devices set twice: %d and %s\n",
470 raiddisks
= strtol(optarg
, &c
, 10);
471 if (!optarg
[0] || *c
|| raiddisks
<=0) {
472 fprintf(stderr
, Name
": invalid number of raid devices: %s\n",
476 ident
.raid_disks
= raiddisks
;
479 case O(CREATE
,'x'): /* number of spare (eXtra) discs */
481 fprintf(stderr
,Name
": spare-devices set twice: %d and %s\n",
485 if (level
!= UnSet
&& level
<= 0 && level
>= -1) {
486 fprintf(stderr
, Name
": spare-devices setting is incompatible with raid level %d\n",
490 sparedisks
= strtol(optarg
, &c
, 10);
491 if (!optarg
[0] || *c
|| sparedisks
< 0) {
492 fprintf(stderr
, Name
": invalid number of spare-devices: %s\n",
500 case O(ASSEMBLE
,'a'): /* auto-creation of device node */
501 autof
= parse_auto(optarg
, "--auto flag", 0);
504 case O(CREATE
,Symlinks
):
505 case O(BUILD
,Symlinks
):
506 case O(ASSEMBLE
,Symlinks
): /* auto creation of symlinks in /dev to /dev/md */
510 case O(BUILD
,'f'): /* force honouring '-n 1' */
511 case O(GROW
,'f'): /* ditto */
512 case O(CREATE
,'f'): /* force honouring of device list */
513 case O(ASSEMBLE
,'f'): /* force assembly */
514 case O(MISC
,'f'): /* force zero */
518 /* now for the Assemble options */
519 case O(ASSEMBLE
,'u'): /* uuid of array */
520 if (ident
.uuid_set
) {
521 fprintf(stderr
, Name
": uuid cannot be set twice. "
522 "Second value %s.\n", optarg
);
525 if (parse_uuid(optarg
, ident
.uuid
))
528 fprintf(stderr
,Name
": Bad uuid: %s\n", optarg
);
534 case O(ASSEMBLE
,'N'):
536 fprintf(stderr
, Name
": name cannot be set twice. "
537 "Second value %s.\n", optarg
);
540 if (strlen(optarg
) > 32) {
541 fprintf(stderr
, Name
": name '%s' is too long, 32 chars max.\n",
545 strcpy(ident
.name
, optarg
);
548 case O(ASSEMBLE
,'m'): /* super-minor for array */
549 if (ident
.super_minor
!= UnSet
) {
550 fprintf(stderr
, Name
": super-minor cannot be set twice. "
551 "Second value: %s.\n", optarg
);
554 if (strcmp(optarg
, "dev")==0)
555 ident
.super_minor
= -2;
557 ident
.super_minor
= strtoul(optarg
, &cp
, 10);
558 if (!optarg
[0] || *cp
) {
559 fprintf(stderr
, Name
": Bad super-minor number: %s.\n", optarg
);
565 case O(ASSEMBLE
,'U'): /* update the superblock */
567 fprintf(stderr
, Name
": Can only update one aspect of superblock, both %s and %s given.\n",
572 if (strcmp(update
, "sparc2.2")==0)
574 if (strcmp(update
, "super-minor") == 0)
576 if (strcmp(update
, "summaries")==0)
578 if (strcmp(update
, "resync")==0)
580 if (strcmp(update
, "uuid")==0)
582 if (strcmp(update
, "name")==0)
584 if (strcmp(update
, "homehost")==0)
586 if (strcmp(update
, "devicesize")==0)
588 if (strcmp(update
, "byteorder")==0) {
590 fprintf(stderr
, Name
": must not set metadata type with --update=byteorder.\n");
593 for(i
=0; !ss
&& superlist
[i
]; i
++)
594 ss
= superlist
[i
]->match_metadata_desc("0.swap");
596 fprintf(stderr
, Name
": INTERNAL ERROR cannot find 0.swap\n");
602 if (strcmp(update
,"?") == 0 || strcmp(update
, "help") == 0)
603 fprintf(stderr
, Name
": ");
605 fprintf(stderr
, Name
": '--update=%s' is invalid. ", update
);
606 fprintf(stderr
, "Valid --update options are:\n"
607 " 'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n"
608 " 'summaries', 'homehost', 'byteorder', 'devicesize'.\n");
611 case O(ASSEMBLE
,NoDegraded
): /* --no-degraded */
612 runstop
= -1; /* --stop isn't allowed for --assemble, so we overload slightly */
615 case O(ASSEMBLE
,'c'): /* config file */
619 fprintf(stderr
, Name
": configfile cannot be set twice. "
620 "Second value is %s.\n", optarg
);
624 set_conffile(configfile
);
625 /* FIXME possibly check that config file exists. Even parse it */
627 case O(ASSEMBLE
,'s'): /* scan */
633 case O(MONITOR
,'m'): /* mail address */
635 fprintf(stderr
, Name
": only specify one mailaddress. %s ignored.\n",
641 case O(MONITOR
,'p'): /* alert program */
643 fprintf(stderr
, Name
": only specify one alter program. %s ignored.\n",
649 case O(MONITOR
,'d'): /* delay in seconds */
651 case O(BUILD
,'d'): /* delay for bitmap updates */
654 fprintf(stderr
, Name
": only specify delay once. %s ignored.\n",
657 delay
= strtol(optarg
, &c
, 10);
658 if (!optarg
[0] || *c
|| delay
<1) {
659 fprintf(stderr
, Name
": invalid delay: %s\n",
665 case O(MONITOR
,'f'): /* daemonise */
668 case O(MONITOR
,'i'): /* pid */
670 fprintf(stderr
, Name
": only specify one pid file. %s ignored.\n",
675 case O(MONITOR
,'1'): /* oneshot */
678 case O(MONITOR
,'t'): /* test */
681 case O(MONITOR
,'y'): /* log messages to syslog */
682 openlog("mdadm", 0, SYSLOG_FACILITY
);
686 /* now the general management options. Some are applicable
687 * to other modes. None have arguments.
690 case O(MANAGE
,'a'): /* add a drive */
694 case O(MANAGE
,ReAdd
):
698 case O(MANAGE
,'r'): /* remove a drive */
701 case O(MANAGE
,'f'): /* set faulty */
705 case O(ASSEMBLE
,'R'):
707 case O(CREATE
,'R'): /* Run the array */
709 fprintf(stderr
, Name
": Cannot both Stop and Run an array\n");
716 fprintf(stderr
, Name
": Cannot both Run and Stop an array\n");
724 fprintf(stderr
, Name
": Cannot have both readonly and readwrite\n");
731 fprintf(stderr
, Name
": Cannot have both readwrite and readonly.\n");
747 if (devmode
&& devmode
!= opt
&&
748 (devmode
== 'E' || (opt
== 'E' && devmode
!= 'Q'))) {
749 fprintf(stderr
, Name
": --examine/-E cannot be given with -%c\n",
750 devmode
=='E'?opt
:devmode
);
759 case O(MISC
, Sparc22
):
760 if (devmode
!= 'E') {
761 fprintf(stderr
, Name
": --sparc2.2 only allowed with --examine\n");
767 case O(ASSEMBLE
,'b'): /* here we simply set the bitmap file */
769 fprintf(stderr
, Name
": bitmap file needed with -b in --assemble mode\n");
772 if (strcmp(optarg
, "internal")==0) {
773 fprintf(stderr
, Name
": there is no need to specify --bitmap when assembling arrays with internal bitmaps\n");
776 bitmap_fd
= open(optarg
, O_RDWR
);
777 if (!*optarg
|| bitmap_fd
< 0) {
778 fprintf(stderr
, Name
": cannot open bitmap file %s: %s\n", optarg
, strerror(errno
));
781 ident
.bitmap_fd
= bitmap_fd
; /* for Assemble */
784 case O(ASSEMBLE
, BackupFile
):
785 case O(GROW
, BackupFile
):
786 /* Specify a file into which grow might place a backup,
787 * or from which assemble might recover a backup
790 fprintf(stderr
, Name
": backup file already specified, rejecting %s\n", optarg
);
793 backup_file
= optarg
;
798 case O(CREATE
,'b'): /* here we create the bitmap */
799 if (strcmp(optarg
, "internal")== 0 ||
800 strcmp(optarg
, "none")== 0 ||
801 strchr(optarg
, '/') != NULL
) {
802 bitmap_file
= optarg
;
806 fprintf(stderr
, Name
": bitmap file must contain a '/', or be 'internal', or 'none'\n");
809 case O(GROW
,BitmapChunk
):
810 case O(BUILD
,BitmapChunk
):
811 case O(CREATE
,BitmapChunk
): /* bitmap chunksize */
812 bitmap_chunk
= strtol(optarg
, &c
, 10);
813 if (!optarg
[0] || *c
|| bitmap_chunk
< 0 ||
814 bitmap_chunk
& (bitmap_chunk
- 1)) {
815 fprintf(stderr
, Name
": invalid bitmap chunksize: %s\n",
819 /* convert K to B, chunk of 0K means 512B */
820 bitmap_chunk
= bitmap_chunk
? bitmap_chunk
* 1024 : 512;
823 case O(BUILD
, WriteBehind
):
824 case O(CREATE
, WriteBehind
): /* write-behind mode */
825 write_behind
= DEFAULT_MAX_WRITE_BEHIND
;
827 write_behind
= strtol(optarg
, &c
, 10);
828 if (write_behind
< 0 || *c
||
829 write_behind
> 16383) {
830 fprintf(stderr
, Name
": Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg
);
836 /* We have now processed all the valid options. Anything else is
839 if (option_index
> 0)
840 fprintf(stderr
, Name
":option --%s not valid in %s mode\n",
841 long_options
[option_index
].name
,
842 map_num(modes
, mode
));
844 fprintf(stderr
, Name
": option -%c not valid in %s mode\n",
845 opt
, map_num(modes
, mode
));
851 char *help_text
= Help
;
853 help_text
= OptionHelp
;
856 case ASSEMBLE
: help_text
= Help_assemble
; break;
857 case BUILD
: help_text
= Help_build
; break;
858 case CREATE
: help_text
= Help_create
; break;
859 case MANAGE
: help_text
= Help_manage
; break;
860 case MISC
: help_text
= Help_misc
; break;
861 case MONITOR
: help_text
= Help_monitor
; break;
862 case GROW
: help_text
= Help_grow
; break;
864 fputs(help_text
,stderr
);
868 if (!mode
&& devs_found
) {
871 if (devlist
->disposition
== 0)
872 devlist
->disposition
= devmode
;
875 fputs(Usage
, stderr
);
880 struct createinfo
*ci
= conf_get_create_info();
882 if (strcasecmp(symlinks
, "yes") == 0)
884 else if (strcasecmp(symlinks
, "no") == 0)
887 fprintf(stderr
, Name
": option --symlinks must be 'no' or 'yes'\n");
891 /* Ok, got the option parsing out of the way
892 * hopefully it's mostly right but there might be some stuff
895 * That is mosty checked in the per-mode stuff but...
897 * For @,B,C and A without -s, the first device listed must be an md device
898 * we check that here and open it.
901 if (mode
==MANAGE
|| mode
== BUILD
|| mode
== CREATE
|| mode
== GROW
||
902 (mode
== ASSEMBLE
&& ! scan
)) {
903 if (devs_found
< 1) {
904 fprintf(stderr
, Name
": an md device must be given in this mode\n");
907 if ((int)ident
.super_minor
== -2 && autof
) {
908 fprintf(stderr
, Name
": --super-minor=dev is incompatible with --auto\n");
911 if (mode
== MANAGE
|| mode
== GROW
)
912 autof
=1; /* Don't create */
913 mdfd
= open_mddev(devlist
->devname
, autof
);
916 if ((int)ident
.super_minor
== -2) {
919 ident
.super_minor
= minor(stb
.st_rdev
);
924 if (raiddisks
> max_disks
) {
925 fprintf(stderr
, Name
": invalid number of raid devices: %d\n",
929 if (raiddisks
== 1 && !force
&& level
!= -5) {
930 fprintf(stderr
, Name
": '1' is an unusual number of drives for an array, so it is probably\n"
931 " a mistake. If you really mean it you will need to specify --force before\n"
932 " setting the number of drives.\n");
937 if ( sparedisks
> max_disks
- raiddisks
) {
938 fprintf(stderr
, Name
": invalid number of spare-devices: %d\n",
944 if (homehost
== NULL
)
945 homehost
= conf_get_homehost();
946 if (homehost
&& strcmp(homehost
, "<system>")==0) {
947 if (gethostname(sys_hostname
, sizeof(sys_hostname
)) == 0) {
948 sys_hostname
[sizeof(sys_hostname
)-1] = 0;
949 homehost
= sys_hostname
;
956 /* readonly, add/remove, readwrite, runstop */
958 rv
= Manage_ro(devlist
->devname
, mdfd
, readonly
);
959 if (!rv
&& devs_found
>1)
960 rv
= Manage_subdevs(devlist
->devname
, mdfd
,
961 devlist
->next
, verbose
-quiet
);
962 if (!rv
&& readonly
< 0)
963 rv
= Manage_ro(devlist
->devname
, mdfd
, readonly
);
965 rv
= Manage_runstop(devlist
->devname
, mdfd
, runstop
, quiet
);
968 if (devs_found
== 1 && ident
.uuid_set
== 0 &&
969 ident
.super_minor
== UnSet
&& ident
.name
[0] == 0 && !scan
) {
970 /* Only a device has been given, so get details from config file */
971 mddev_ident_t array_ident
= conf_get_ident(devlist
->devname
);
972 if (array_ident
== NULL
) {
973 fprintf(stderr
, Name
": %s not identified in config file.\n",
977 mdfd
= open_mddev(devlist
->devname
,
978 array_ident
->autof
? array_ident
->autof
: autof
);
982 rv
|= Assemble(ss
, devlist
->devname
, mdfd
, array_ident
,
984 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
989 rv
= Assemble(ss
, devlist
->devname
, mdfd
, &ident
,
990 devlist
->next
, backup_file
,
991 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
992 else if (devs_found
>0) {
993 if (update
&& devs_found
> 1) {
994 fprintf(stderr
, Name
": can only update a single array at a time\n");
997 if (backup_file
&& devs_found
> 1) {
998 fprintf(stderr
, Name
": can only assemble a single array when providing a backup file.\n");
1001 for (dv
= devlist
; dv
; dv
=dv
->next
) {
1002 mddev_ident_t array_ident
= conf_get_ident(dv
->devname
);
1003 if (array_ident
== NULL
) {
1004 fprintf(stderr
, Name
": %s not identified in config file.\n",
1009 mdfd
= open_mddev(dv
->devname
,
1010 array_ident
->autof
?array_ident
->autof
: autof
);
1015 rv
|= Assemble(ss
, dv
->devname
, mdfd
, array_ident
,
1017 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
1021 mddev_ident_t array_list
= conf_get_ident(NULL
);
1022 mddev_dev_t devlist
= conf_get_devs();
1024 if (devlist
== NULL
) {
1025 fprintf(stderr
, Name
": No devices listed in conf file were found.\n");
1029 fprintf(stderr
, Name
": --update not meaningful with a --scan assembly.\n");
1033 fprintf(stderr
, Name
": --backup_file not meaningful with a --scan assembly.\n");
1036 for (; array_list
; array_list
= array_list
->next
) {
1037 mdu_array_info_t array
;
1038 mdfd
= open_mddev(array_list
->devname
,
1039 array_list
->autof
? array_list
->autof
: autof
);
1044 if (ioctl(mdfd
, GET_ARRAY_INFO
, &array
)>=0)
1045 /* already assembled, skip */
1048 rv
|= Assemble(ss
, array_list
->devname
, mdfd
,
1051 readonly
, runstop
, NULL
, homehost
, verbose
-quiet
, force
);
1057 /* Maybe we can auto-assemble something.
1058 * Repeatedly call Assemble in auto-assmble mode
1063 ident
.autof
= autof
;
1067 rv2
= Assemble(ss
, NULL
, -1,
1070 readonly
, runstop
, NULL
, homehost
, verbose
-quiet
, force
);
1076 /* found something so even though assembly failed we
1077 * want to avoid auto-updates
1079 auto_update_home
= 0;
1081 /* Incase there are stacked devices, we need to go around again */
1083 if (cnt
== 0 && auto_update_home
&& homehost
) {
1084 /* Nothing found, maybe we need to bootstrap homehost info */
1088 rv2
= Assemble(ss
, NULL
, -1,
1091 readonly
, runstop
, "homehost", homehost
, verbose
-quiet
, force
);
1097 /* Incase there are stacked devices, we need to go around again */
1100 if (cnt
== 0 && rv
== 0) {
1101 fprintf(stderr
, Name
": No arrays found in config file or automatically\n");
1104 } else if (cnt
== 0 && rv
== 0) {
1105 fprintf(stderr
, Name
": No arrays found in config file\n");
1111 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1112 if (write_behind
&& !bitmap_file
) {
1113 fprintf(stderr
, Name
": write-behind mode requires a bitmap.\n");
1119 if (strcmp(bitmap_file
, "internal")==0) {
1120 fprintf(stderr
, Name
": 'internal' bitmaps not supported with --build\n");
1125 rv
= Build(devlist
->devname
, mdfd
, chunk
, level
, layout
,
1126 raiddisks
, devlist
->next
, assume_clean
,
1127 bitmap_file
, bitmap_chunk
, write_behind
, delay
, verbose
-quiet
);
1130 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1131 if (write_behind
&& !bitmap_file
) {
1132 fprintf(stderr
, Name
": write-behind mode requires a bitmap.\n");
1137 rv
= Create(ss
, devlist
->devname
, mdfd
, chunk
, level
, layout
, size
<0 ? 0 : size
,
1138 raiddisks
, sparedisks
, ident
.name
, homehost
,
1139 devs_found
-1, devlist
->next
, runstop
, verbose
-quiet
, force
, assume_clean
,
1140 bitmap_file
, bitmap_chunk
, write_behind
, delay
);
1143 if (devmode
== 'E') {
1144 if (devlist
== NULL
&& !scan
) {
1145 fprintf(stderr
, Name
": No devices to examine\n");
1148 if (devlist
== NULL
)
1149 devlist
= conf_get_devs();
1150 if (devlist
== NULL
) {
1151 fprintf(stderr
, Name
": No devices listed in %s\n", configfile
?configfile
:DefaultConfFile
);
1154 if (brief
&& verbose
)
1156 rv
= Examine(devlist
, scan
?(verbose
>1?0:verbose
+1):brief
, scan
, SparcAdjust
, ss
, homehost
);
1158 if (devlist
== NULL
) {
1159 if (devmode
=='D' && scan
) {
1160 /* apply --detail to all devices in /proc/mdstat */
1161 struct mdstat_ent
*ms
= mdstat_read(0, 1);
1162 struct mdstat_ent
*e
;
1163 for (e
=ms
; e
; e
=e
->next
) {
1164 char *name
= get_md_name(e
->devnum
);
1167 fprintf(stderr
, Name
": cannot find device file for %s\n",
1171 rv
|= Detail(name
, verbose
>1?0:verbose
+1, test
, homehost
);
1174 } else if (devmode
== 'S' && scan
) {
1175 /* apply --stop to all devices in /proc/mdstat */
1176 /* Due to possible stacking of devices, repeat until
1177 * nothing more can be stopped
1179 int progress
=1, err
;
1182 struct mdstat_ent
*ms
= mdstat_read(0, 0);
1183 struct mdstat_ent
*e
;
1185 if (!progress
) last
= 1;
1186 progress
= 0; err
= 0;
1187 for (e
=ms
; e
; e
=e
->next
) {
1188 char *name
= get_md_name(e
->devnum
);
1191 fprintf(stderr
, Name
": cannot find device file for %s\n",
1195 mdfd
= open_mddev(name
, 1);
1197 if (Manage_runstop(name
, mdfd
, -1, quiet
?1:last
?0:-1))
1206 } while (!last
&& err
);
1209 fprintf(stderr
, Name
": No devices given.\n");
1213 for (dv
=devlist
; dv
; dv
=dv
->next
) {
1214 switch(dv
->disposition
) {
1216 rv
|= Detail(dv
->devname
, brief
?1+verbose
:0, test
, homehost
); continue;
1217 case 'K': /* Zero superblock */
1218 rv
|= Kill(dv
->devname
, force
, quiet
); continue;
1220 rv
|= Query(dv
->devname
); continue;
1222 rv
|= ExamineBitmap(dv
->devname
, brief
, ss
); continue;
1224 rv
|= Wait(dv
->devname
); continue;
1226 mdfd
= open_mddev(dv
->devname
, 1);
1228 switch(dv
->disposition
) {
1230 rv
|= Manage_runstop(dv
->devname
, mdfd
, 1, quiet
); break;
1232 rv
|= Manage_runstop(dv
->devname
, mdfd
, -1, quiet
); break;
1234 rv
|= Manage_ro(dv
->devname
, mdfd
, 1); break;
1236 rv
|= Manage_ro(dv
->devname
, mdfd
, -1); break;
1245 if (!devlist
&& !scan
) {
1246 fprintf(stderr
, Name
": Cannot monitor: need --scan or at least one device\n");
1250 if (pidfile
&& !daemonise
) {
1251 fprintf(stderr
, Name
": Cannot write a pid file when not in daemon mode\n");
1255 rv
= Monitor(devlist
, mailaddr
, program
,
1256 delay
?delay
:60, daemonise
, scan
, oneshot
,
1257 dosyslog
, test
, pidfile
);
1261 if (devs_found
> 1) {
1264 if (size
>= 0 || raiddisks
) {
1265 fprintf(stderr
, Name
": --size, --raiddisks, and --add are exclusing in --grow mode\n");
1269 for (dv
=devlist
->next
; dv
; dv
=dv
->next
) {
1270 rv
= Grow_Add_device(devlist
->devname
, mdfd
, dv
->devname
);
1274 } else if ((size
>= 0) + (raiddisks
!= 0) + (layout
!= UnSet
) + (bitmap_file
!= NULL
)> 1) {
1275 fprintf(stderr
, Name
": can change at most one of size, raiddisks, bitmap, and layout\n");
1278 } else if (layout
!= UnSet
)
1279 rv
= Manage_reconfig(devlist
->devname
, mdfd
, layout
);
1280 else if (size
>= 0 || raiddisks
)
1281 rv
= Grow_reshape(devlist
->devname
, mdfd
, quiet
, backup_file
,
1282 size
, level
, layout
, chunk
, raiddisks
);
1283 else if (bitmap_file
) {
1284 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1285 rv
= Grow_addbitmap(devlist
->devname
, mdfd
, bitmap_file
,
1286 bitmap_chunk
, delay
, write_behind
, force
);
1288 fprintf(stderr
, Name
": no changes to --grow\n");