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 /* autof indicates whether and how to create device node.
79 * bottom 3 bits are style. Rest (when shifted) are number of parts
81 * 1 - don't create (no)
82 * 2 - if is_standard, then create (yes)
83 * 3 - create as 'md' - reject is_standard mdp (md)
84 * 4 - create as 'mdp' - reject is_standard md (mdp)
85 * 5 - default to md if not is_standard (md in config file)
86 * 6 - default to mdp if not is_standard (part, or mdp in config file)
90 char *homehost
= NULL
;
91 char sys_hostname
[256];
92 char *mailaddr
= NULL
;
98 struct supertype
*ss
= NULL
;
101 char *shortopt
= short_options
;
103 int auto_update_home
= 0;
110 srandom(time(0) ^ getpid());
114 ident
.raid_disks
= UnSet
;
115 ident
.super_minor
= UnSet
;
117 ident
.spare_group
= NULL
;
120 ident
.bitmap_fd
= -1;
121 ident
.bitmap_file
= NULL
;
124 while ((option_index
= -1) ,
125 (opt
=getopt_long(argc
, argv
,
126 shortopt
, long_options
,
127 &option_index
)) != -1) {
129 /* firstly, some mode-independant options */
132 if (option_index
> 0 &&
133 strcmp(long_options
[option_index
].name
, "help-options")==0)
140 fputs(Version
, stderr
);
150 if (mode
== ASSEMBLE
|| mode
== BUILD
|| mode
== CREATE
|| mode
== GROW
)
151 break; /* b means bitmap */
154 fprintf(stderr
, Name
": -b cannot have any extra immediately after it, sorry.\n");
165 fputs(Usage
, stderr
);
168 /* second, figure out the mode.
169 * Some options force the mode. Others
170 * set the mode if it isn't already
174 case '@': /* just incase they say --manage */
176 shortopt
= short_bitmap_auto_options
;
181 case ReAdd
: /* re-add */
184 shortopt
= short_bitmap_auto_options
;
188 case 'A': newmode
= ASSEMBLE
; shortopt
= short_bitmap_auto_options
; break;
189 case 'B': newmode
= BUILD
; shortopt
= short_bitmap_auto_options
; break;
190 case 'C': newmode
= CREATE
; shortopt
= short_bitmap_auto_options
; break;
191 case 'F': newmode
= MONITOR
;break;
192 case 'G': newmode
= GROW
; shortopt
= short_bitmap_auto_options
; break;
198 case 'Q': newmode
= MISC
; break;
203 case 'K': if (!mode
) newmode
= MISC
; break;
205 if (mode
&& newmode
== mode
) {
206 /* everybody happy ! */
207 } else if (mode
&& newmode
!= mode
) {
209 fprintf(stderr
, Name
": ");
210 if (option_index
>= 0)
211 fprintf(stderr
, "--%s", long_options
[option_index
].name
);
213 fprintf(stderr
, "-%c", opt
);
214 fprintf(stderr
, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n",
215 map_num(modes
, newmode
),
216 map_num(modes
, mode
));
218 } else if (!mode
&& newmode
) {
221 /* special case of -c --help */
223 ( strncmp(optarg
, "--h", 3)==0 ||
224 strncmp(optarg
, "-h", 2)==0)) {
225 fputs(Help_config
, stderr
);
229 /* If first option is a device, don't force the mode yet */
231 if (devs_found
== 0) {
232 dv
= malloc(sizeof(*dv
));
234 fprintf(stderr
, Name
": malloc failed\n");
237 dv
->devname
= optarg
;
238 dv
->disposition
= devmode
;
239 dv
->writemostly
= writemostly
;
244 devlistend
= &dv
->next
;
249 /* No mode yet, and this is the second device ... */
250 fprintf(stderr
, Name
": An option must be given to set the mode before a second device is listed\n");
253 if (option_index
>= 0)
254 fprintf(stderr
, Name
": --%s", long_options
[option_index
].name
);
256 fprintf(stderr
, Name
": -%c", opt
);
257 fprintf(stderr
, " does not set the mode, and so cannot be the first option.\n");
261 /* if we just set the mode, then done */
273 /* an undecorated option - must be a device name.
275 if (devs_found
> 0 && mode
== '@' && !devmode
) {
276 fprintf(stderr
, Name
": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg
);
279 if (devs_found
> 0 && mode
== 'G' && !devmode
) {
280 fprintf(stderr
, Name
": Must give one of -a for devices do add: %s\n", optarg
);
283 dv
= malloc(sizeof(*dv
));
285 fprintf(stderr
, Name
": malloc failed\n");
288 dv
->devname
= optarg
;
289 dv
->disposition
= devmode
;
290 dv
->writemostly
= writemostly
;
294 devlistend
= &dv
->next
;
300 /* We've got a mode, and opt is now something else which
301 * could depend on the mode */
302 #define O(a,b) ((a<<8)|b)
303 switch (O(mode
,opt
)) {
305 case O(BUILD
,'c'): /* chunk or rounding */
307 fprintf(stderr
, Name
": chunk/rounding may only be specified once. "
308 "Second value is %s.\n", optarg
);
311 chunk
= strtol(optarg
, &c
, 10);
312 if (!optarg
[0] || *c
|| chunk
<4 || ((chunk
-1)&chunk
)) {
313 fprintf(stderr
, Name
": invalid chunk/rounding value: %s\n",
319 case O(ASSEMBLE
,AutoHomeHost
):
320 auto_update_home
= 1;
323 case O(ASSEMBLE
,'e'):
324 case O(MISC
,'e'): /* set metadata (superblock) information */
326 fprintf(stderr
, Name
": metadata information already given\n");
329 for(i
=0; !ss
&& superlist
[i
]; i
++)
330 ss
= superlist
[i
]->match_metadata_desc(optarg
);
333 fprintf(stderr
, Name
": unrecognised metadata identifier: %s\n", optarg
);
336 max_disks
= ss
->max_devs
;
342 /* set write-mostly for following devices */
347 case O(CREATE
,'z'): /* size */
349 fprintf(stderr
, Name
": size may only be specified once. "
350 "Second value is %s.\n", optarg
);
353 if (strcmp(optarg
, "max")==0)
356 size
= strtoll(optarg
, &c
, 10);
357 if (!optarg
[0] || *c
|| size
< 4) {
358 fprintf(stderr
, Name
": invalid size: %s\n",
365 case O(GROW
,'l'): /* hack - needed to understand layout */
367 case O(BUILD
,'l'): /* set raid level*/
368 if (level
!= UnSet
) {
369 fprintf(stderr
, Name
": raid level may only be set once. "
370 "Second value is %s.\n", optarg
);
373 level
= map_name(pers
, optarg
);
374 if (level
== UnSet
) {
375 fprintf(stderr
, Name
": invalid raid level: %s\n",
379 if (level
!= 0 && level
!= -1 && level
!= 1 && level
!= -4 && level
!= -5 && mode
== BUILD
) {
380 fprintf(stderr
, Name
": Raid level %s not permitted with --build.\n",
384 if (sparedisks
> 0 && level
< 1 && level
>= -1) {
385 fprintf(stderr
, Name
": raid level %s is incompatible with spare-devices setting.\n",
392 case O(CREATE
,'p'): /* raid5 layout */
393 case O(BUILD
,'p'): /* faulty layout */
394 case O(GROW
, 'p'): /* faulty reconfig */
395 if (layout
!= UnSet
) {
396 fprintf(stderr
,Name
": layout may only be sent once. "
397 "Second value was %s\n", optarg
);
402 fprintf(stderr
, Name
": layout not meaningful for %s arrays.\n",
403 map_num(pers
, level
));
406 fprintf(stderr
, Name
": raid level must be given before layout.\n");
411 layout
= map_name(r5layout
, optarg
);
413 fprintf(stderr
, Name
": layout %s not understood for raid5.\n",
420 /* 'f', 'o' or 'n' followed by a number <= raid_disks */
421 if ((optarg
[0] != 'n' && optarg
[0] != 'f' && optarg
[0] != 'o') ||
422 (copies
= strtoul(optarg
+1, &cp
, 10)) < 1 ||
425 fprintf(stderr
, Name
": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg
);
428 if (optarg
[0] == 'n')
429 layout
= 256 + copies
;
430 else if (optarg
[0] == 'o')
431 layout
= 0x10000 + (copies
<<8) + 1;
433 layout
= 1 + (copies
<<8);
440 int ln
= strcspn(optarg
, "0123456789");
441 char *m
= strdup(optarg
);
444 mode
= map_name(faultylayout
, m
);
446 fprintf(stderr
, Name
": layout %s not understood for faulty.\n",
450 layout
= mode
| (atoi(optarg
+ln
)<< ModeShift
);
455 case O(CREATE
,AssumeClean
):
456 case O(BUILD
,AssumeClean
): /* assume clean */
462 case O(BUILD
,'n'): /* number of raid disks */
464 fprintf(stderr
, Name
": raid-devices set twice: %d and %s\n",
468 raiddisks
= strtol(optarg
, &c
, 10);
469 if (!optarg
[0] || *c
|| raiddisks
<=0) {
470 fprintf(stderr
, Name
": invalid number of raid devices: %s\n",
474 ident
.raid_disks
= raiddisks
;
477 case O(CREATE
,'x'): /* number of spare (eXtra) discs */
479 fprintf(stderr
,Name
": spare-devices set twice: %d and %s\n",
483 if (level
!= UnSet
&& level
<= 0 && level
>= -1) {
484 fprintf(stderr
, Name
": spare-devices setting is incompatible with raid level %d\n",
488 sparedisks
= strtol(optarg
, &c
, 10);
489 if (!optarg
[0] || *c
|| sparedisks
< 0) {
490 fprintf(stderr
, Name
": invalid number of spare-devices: %s\n",
498 case O(ASSEMBLE
,'a'): /* auto-creation of device node */
499 autof
= parse_auto(optarg
, "--auto flag", 0);
502 case O(BUILD
,'f'): /* force honouring '-n 1' */
503 case O(GROW
,'f'): /* ditto */
504 case O(CREATE
,'f'): /* force honouring of device list */
505 case O(ASSEMBLE
,'f'): /* force assembly */
506 case O(MISC
,'f'): /* force zero */
510 /* now for the Assemble options */
511 case O(ASSEMBLE
,'u'): /* uuid of array */
512 if (ident
.uuid_set
) {
513 fprintf(stderr
, Name
": uuid cannot be set twice. "
514 "Second value %s.\n", optarg
);
517 if (parse_uuid(optarg
, ident
.uuid
))
520 fprintf(stderr
,Name
": Bad uuid: %s\n", optarg
);
526 case O(ASSEMBLE
,'N'):
528 fprintf(stderr
, Name
": name cannot be set twice. "
529 "Second value %s.\n", optarg
);
532 if (strlen(optarg
) > 32) {
533 fprintf(stderr
, Name
": name '%s' is too long, 32 chars max.\n",
537 strcpy(ident
.name
, optarg
);
540 case O(ASSEMBLE
,'m'): /* super-minor for array */
541 if (ident
.super_minor
!= UnSet
) {
542 fprintf(stderr
, Name
": super-minor cannot be set twice. "
543 "Second value: %s.\n", optarg
);
546 if (strcmp(optarg
, "dev")==0)
547 ident
.super_minor
= -2;
549 ident
.super_minor
= strtoul(optarg
, &cp
, 10);
550 if (!optarg
[0] || *cp
) {
551 fprintf(stderr
, Name
": Bad super-minor number: %s.\n", optarg
);
557 case O(ASSEMBLE
,'U'): /* update the superblock */
559 fprintf(stderr
, Name
": Can only update one aspect of superblock, both %s and %s given.\n",
564 if (strcmp(update
, "sparc2.2")==0)
566 if (strcmp(update
, "super-minor") == 0)
568 if (strcmp(update
, "summaries")==0)
570 if (strcmp(update
, "resync")==0)
572 if (strcmp(update
, "uuid")==0)
574 if (strcmp(update
, "name")==0)
576 if (strcmp(update
, "homehost")==0)
578 if (strcmp(update
, "byteorder")==0) {
580 fprintf(stderr
, Name
": must not set metadata type with --update=byteorder.\n");
583 for(i
=0; !ss
&& superlist
[i
]; i
++)
584 ss
= superlist
[i
]->match_metadata_desc("0.swap");
586 fprintf(stderr
, Name
": INTERNAL ERROR cannot find 0.swap\n");
592 fprintf(stderr
, Name
": '--update %s' invalid. Only 'sparc2.2', 'super-minor', 'uuid', 'resync' or 'summaries' supported\n",update
);
595 case O(ASSEMBLE
,NoDegraded
): /* --no-degraded */
596 runstop
= -1; /* --stop isn't allowed for --assemble, so we overload slightly */
599 case O(ASSEMBLE
,'c'): /* config file */
603 fprintf(stderr
, Name
": configfile cannot be set twice. "
604 "Second value is %s.\n", optarg
);
608 /* FIXME possibly check that config file exists. Even parse it */
610 case O(ASSEMBLE
,'s'): /* scan */
616 case O(MONITOR
,'m'): /* mail address */
618 fprintf(stderr
, Name
": only specify one mailaddress. %s ignored.\n",
624 case O(MONITOR
,'p'): /* alert program */
626 fprintf(stderr
, Name
": only specify one alter program. %s ignored.\n",
632 case O(MONITOR
,'d'): /* delay in seconds */
634 case O(BUILD
,'d'): /* delay for bitmap updates */
637 fprintf(stderr
, Name
": only specify delay once. %s ignored.\n",
640 delay
= strtol(optarg
, &c
, 10);
641 if (!optarg
[0] || *c
|| delay
<1) {
642 fprintf(stderr
, Name
": invalid delay: %s\n",
648 case O(MONITOR
,'f'): /* daemonise */
651 case O(MONITOR
,'i'): /* pid */
653 fprintf(stderr
, Name
": only specify one pid file. %s ignored.\n",
658 case O(MONITOR
,'1'): /* oneshot */
661 case O(MONITOR
,'t'): /* test */
664 case O(MONITOR
,'y'): /* log messages to syslog */
665 openlog("mdadm", 0, SYSLOG_FACILITY
);
669 /* now the general management options. Some are applicable
670 * to other modes. None have arguments.
673 case O(MANAGE
,'a'): /* add a drive */
677 case O(MANAGE
,ReAdd
):
681 case O(MANAGE
,'r'): /* remove a drive */
684 case O(MANAGE
,'f'): /* set faulty */
688 case O(ASSEMBLE
,'R'):
690 case O(CREATE
,'R'): /* Run the array */
692 fprintf(stderr
, Name
": Cannot both Stop and Run an array\n");
699 fprintf(stderr
, Name
": Cannot both Run and Stop an array\n");
707 fprintf(stderr
, Name
": Cannot have both readonly and readwrite\n");
714 fprintf(stderr
, Name
": Cannot have both readwrite and readonly.\n");
729 if (devmode
&& devmode
!= opt
&&
730 (devmode
== 'E' || (opt
== 'E' && devmode
!= 'Q'))) {
731 fprintf(stderr
, Name
": --examine/-E cannot be given with -%c\n",
732 devmode
=='E'?opt
:devmode
);
741 case O(MISC
, Sparc22
):
742 if (devmode
!= 'E') {
743 fprintf(stderr
, Name
": --sparc2.2 only allowed with --examine\n");
749 case O(ASSEMBLE
,'b'): /* here we simply set the bitmap file */
751 fprintf(stderr
, Name
": bitmap file needed with -b in --assemble mode\n");
754 if (strcmp(optarg
, "internal")==0) {
755 fprintf(stderr
, Name
": there is no need to specify --bitmap when assembling arrays with internal bitmaps\n");
758 bitmap_fd
= open(optarg
, O_RDWR
);
759 if (!*optarg
|| bitmap_fd
< 0) {
760 fprintf(stderr
, Name
": cannot open bitmap file %s: %s\n", optarg
, strerror(errno
));
763 ident
.bitmap_fd
= bitmap_fd
; /* for Assemble */
766 case O(ASSEMBLE
, BackupFile
):
767 case O(GROW
, BackupFile
):
768 /* Specify a file into which grow might place a backup,
769 * or from which assemble might recover a backup
772 fprintf(stderr
, Name
": backup file already specified, rejecting %s\n", optarg
);
775 backup_file
= optarg
;
780 case O(CREATE
,'b'): /* here we create the bitmap */
781 if (strcmp(optarg
, "internal")== 0 ||
782 strcmp(optarg
, "none")== 0 ||
783 strchr(optarg
, '/') != NULL
) {
784 bitmap_file
= optarg
;
788 fprintf(stderr
, Name
": bitmap file must contain a '/', or be 'internal', or 'none'\n");
791 case O(GROW
,BitmapChunk
):
792 case O(BUILD
,BitmapChunk
):
793 case O(CREATE
,BitmapChunk
): /* bitmap chunksize */
794 bitmap_chunk
= strtol(optarg
, &c
, 10);
795 if (!optarg
[0] || *c
|| bitmap_chunk
< 0 ||
796 bitmap_chunk
& (bitmap_chunk
- 1)) {
797 fprintf(stderr
, Name
": invalid bitmap chunksize: %s\n",
801 /* convert K to B, chunk of 0K means 512B */
802 bitmap_chunk
= bitmap_chunk
? bitmap_chunk
* 1024 : 512;
805 case O(BUILD
, WriteBehind
):
806 case O(CREATE
, WriteBehind
): /* write-behind mode */
807 write_behind
= DEFAULT_MAX_WRITE_BEHIND
;
809 write_behind
= strtol(optarg
, &c
, 10);
810 if (write_behind
< 0 || *c
||
811 write_behind
> 16383) {
812 fprintf(stderr
, Name
": Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg
);
818 /* We have now processed all the valid options. Anything else is
821 if (option_index
> 0)
822 fprintf(stderr
, Name
":option --%s not valid in %s mode\n",
823 long_options
[option_index
].name
,
824 map_num(modes
, mode
));
826 fprintf(stderr
, Name
": option -%c not valid in %s mode\n",
827 opt
, map_num(modes
, mode
));
833 char *help_text
= Help
;
835 help_text
= OptionHelp
;
838 case ASSEMBLE
: help_text
= Help_assemble
; break;
839 case BUILD
: help_text
= Help_build
; break;
840 case CREATE
: help_text
= Help_create
; break;
841 case MANAGE
: help_text
= Help_manage
; break;
842 case MISC
: help_text
= Help_misc
; break;
843 case MONITOR
: help_text
= Help_monitor
; break;
844 case GROW
: help_text
= Help_grow
; break;
846 fputs(help_text
,stderr
);
850 if (!mode
&& devs_found
) {
853 if (devlist
->disposition
== 0)
854 devlist
->disposition
= devmode
;
857 fputs(Usage
, stderr
);
860 /* Ok, got the option parsing out of the way
861 * hopefully it's mostly right but there might be some stuff
864 * That is mosty checked in the per-mode stuff but...
866 * For @,B,C and A without -s, the first device listed must be an md device
867 * we check that here and open it.
870 if (mode
==MANAGE
|| mode
== BUILD
|| mode
== CREATE
|| mode
== GROW
||
871 (mode
== ASSEMBLE
&& ! scan
)) {
872 if (devs_found
< 1) {
873 fprintf(stderr
, Name
": an md device must be given in this mode\n");
876 if ((int)ident
.super_minor
== -2 && autof
) {
877 fprintf(stderr
, Name
": --super-minor=dev is incompatible with --auto\n");
880 if (mode
== MANAGE
|| mode
== GROW
)
881 autof
=1; /* Don't create */
882 mdfd
= open_mddev(devlist
->devname
, autof
);
885 if ((int)ident
.super_minor
== -2) {
888 ident
.super_minor
= minor(stb
.st_rdev
);
893 if (raiddisks
> max_disks
) {
894 fprintf(stderr
, Name
": invalid number of raid devices: %d\n",
898 if (raiddisks
== 1 && !force
&& level
!= -5) {
899 fprintf(stderr
, Name
": '1' is an unusual number of drives for an array, so it is probably\n"
900 " a mistake. If you really mean it you will need to specify --force before\n"
901 " setting the number of drives.\n");
906 if ( sparedisks
> max_disks
- raiddisks
) {
907 fprintf(stderr
, Name
": invalid number of spare-devices: %d\n",
913 if (homehost
== NULL
)
914 homehost
= conf_get_homehost(configfile
);
915 if (homehost
&& strcmp(homehost
, "<system>")==0) {
916 if (gethostname(sys_hostname
, sizeof(sys_hostname
)) == 0) {
917 sys_hostname
[sizeof(sys_hostname
)-1] = 0;
918 homehost
= sys_hostname
;
925 /* readonly, add/remove, readwrite, runstop */
927 rv
= Manage_ro(devlist
->devname
, mdfd
, readonly
);
928 if (!rv
&& devs_found
>1)
929 rv
= Manage_subdevs(devlist
->devname
, mdfd
,
930 devlist
->next
, verbose
-quiet
);
931 if (!rv
&& readonly
< 0)
932 rv
= Manage_ro(devlist
->devname
, mdfd
, readonly
);
934 rv
= Manage_runstop(devlist
->devname
, mdfd
, runstop
, quiet
);
937 if (devs_found
== 1 && ident
.uuid_set
== 0 &&
938 ident
.super_minor
== UnSet
&& ident
.name
[0] == 0 && !scan
) {
939 /* Only a device has been given, so get details from config file */
940 mddev_ident_t array_ident
= conf_get_ident(configfile
, devlist
->devname
);
941 if (array_ident
== NULL
) {
942 fprintf(stderr
, Name
": %s not identified in config file.\n",
946 mdfd
= open_mddev(devlist
->devname
,
947 array_ident
->autof
? array_ident
->autof
: autof
);
951 rv
|= Assemble(ss
, devlist
->devname
, mdfd
, array_ident
, configfile
,
953 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
958 rv
= Assemble(ss
, devlist
->devname
, mdfd
, &ident
, configfile
,
959 devlist
->next
, backup_file
,
960 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
961 else if (devs_found
>0) {
962 if (update
&& devs_found
> 1) {
963 fprintf(stderr
, Name
": can only update a single array at a time\n");
966 if (backup_file
&& devs_found
> 1) {
967 fprintf(stderr
, Name
": can only assemble a single array when providing a backup file.\n");
970 for (dv
= devlist
; dv
; dv
=dv
->next
) {
971 mddev_ident_t array_ident
= conf_get_ident(configfile
, dv
->devname
);
972 if (array_ident
== NULL
) {
973 fprintf(stderr
, Name
": %s not identified in config file.\n",
978 mdfd
= open_mddev(dv
->devname
,
979 array_ident
->autof
?array_ident
->autof
: autof
);
984 rv
|= Assemble(ss
, dv
->devname
, mdfd
, array_ident
, configfile
,
986 readonly
, runstop
, update
, homehost
, verbose
-quiet
, force
);
990 mddev_ident_t array_list
= conf_get_ident(configfile
, NULL
);
991 mddev_dev_t devlist
= conf_get_devs(configfile
);
993 if (devlist
== NULL
) {
994 fprintf(stderr
, Name
": No devices listed in conf file were found.\n");
998 fprintf(stderr
, Name
": --update not meaningful with a --scan assembly.\n");
1002 fprintf(stderr
, Name
": --backup_file not meaningful with a --scan assembly.\n");
1005 for (; array_list
; array_list
= array_list
->next
) {
1006 mdu_array_info_t array
;
1007 mdfd
= open_mddev(array_list
->devname
,
1008 array_list
->autof
? array_list
->autof
: autof
);
1013 if (ioctl(mdfd
, GET_ARRAY_INFO
, &array
)>=0)
1014 /* already assembled, skip */
1017 rv
|= Assemble(ss
, array_list
->devname
, mdfd
,
1018 array_list
, configfile
,
1020 readonly
, runstop
, NULL
, homehost
, verbose
-quiet
, force
);
1026 /* Maybe we can auto-assemble something.
1027 * Repeatedly call Assemble in auto-assmble mode
1032 ident
.autof
= autof
;
1036 rv2
= Assemble(ss
, NULL
, -1,
1039 readonly
, runstop
, NULL
, homehost
, verbose
-quiet
, force
);
1045 /* found something so even though assembly failed we
1046 * want to avoid auto-updates
1048 auto_update_home
= 0;
1050 /* Incase there are stacked devices, we need to go around again */
1051 devlist
= conf_get_devs(configfile
);
1053 if (cnt
== 0 && auto_update_home
&& homehost
) {
1054 /* Nothing found, maybe we need to bootstrap homehost info */
1058 rv2
= Assemble(ss
, NULL
, -1,
1061 readonly
, runstop
, "homehost", homehost
, verbose
-quiet
, force
);
1067 /* Incase there are stacked devices, we need to go around again */
1068 devlist
= conf_get_devs(configfile
);
1071 if (cnt
== 0 && rv
== 0) {
1072 fprintf(stderr
, Name
": No arrays found in config file or automatically\n");
1075 } else if (cnt
== 0 && rv
== 0) {
1076 fprintf(stderr
, Name
": No arrays found in config file\n");
1082 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1083 if (write_behind
&& !bitmap_file
) {
1084 fprintf(stderr
, Name
": write-behind mode requires a bitmap.\n");
1090 if (strcmp(bitmap_file
, "internal")==0) {
1091 fprintf(stderr
, Name
": 'internal' bitmaps not supported with --build\n");
1096 rv
= Build(devlist
->devname
, mdfd
, chunk
, level
, layout
,
1097 raiddisks
, devlist
->next
, assume_clean
,
1098 bitmap_file
, bitmap_chunk
, write_behind
, delay
, verbose
-quiet
);
1101 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1102 if (write_behind
&& !bitmap_file
) {
1103 fprintf(stderr
, Name
": write-behind mode requires a bitmap.\n");
1108 rv
= Create(ss
, devlist
->devname
, mdfd
, chunk
, level
, layout
, size
<0 ? 0 : size
,
1109 raiddisks
, sparedisks
, ident
.name
, homehost
,
1110 devs_found
-1, devlist
->next
, runstop
, verbose
-quiet
, force
, assume_clean
,
1111 bitmap_file
, bitmap_chunk
, write_behind
, delay
);
1115 if (devmode
== 'E') {
1116 if (devlist
== NULL
&& !scan
) {
1117 fprintf(stderr
, Name
": No devices to examine\n");
1120 if (devlist
== NULL
)
1121 devlist
= conf_get_devs(configfile
);
1122 if (devlist
== NULL
) {
1123 fprintf(stderr
, Name
": No devices listed in %s\n", configfile
?configfile
:DefaultConfFile
);
1126 rv
= Examine(devlist
, scan
?(verbose
>1?0:verbose
+1):brief
, scan
, SparcAdjust
, ss
, homehost
);
1128 if (devlist
== NULL
) {
1129 if (devmode
=='D' && scan
) {
1130 /* apply --detail to all devices in /proc/mdstat */
1131 struct mdstat_ent
*ms
= mdstat_read(0, 1);
1132 struct mdstat_ent
*e
;
1133 for (e
=ms
; e
; e
=e
->next
) {
1134 char *name
= get_md_name(e
->devnum
);
1137 fprintf(stderr
, Name
": cannot find device file for %s\n",
1141 rv
|= Detail(name
, verbose
>1?0:verbose
+1, test
, homehost
);
1144 } else if (devmode
== 'S' && scan
) {
1145 /* apply --stop to all devices in /proc/mdstat */
1146 /* Due to possible stacking of devices, repeat until
1147 * nothing more can be stopped
1149 int progress
=1, err
;
1152 struct mdstat_ent
*ms
= mdstat_read(0, 0);
1153 struct mdstat_ent
*e
;
1155 if (!progress
) last
= 1;
1156 progress
= 0; err
= 0;
1157 for (e
=ms
; e
; e
=e
->next
) {
1158 char *name
= get_md_name(e
->devnum
);
1161 fprintf(stderr
, Name
": cannot find device file for %s\n",
1165 mdfd
= open_mddev(name
, 1);
1167 if (Manage_runstop(name
, mdfd
, -1, quiet
?1:last
?0:-1))
1176 } while (!last
&& err
);
1179 fprintf(stderr
, Name
": No devices given.\n");
1183 for (dv
=devlist
; dv
; dv
=dv
->next
) {
1184 switch(dv
->disposition
) {
1186 rv
|= Detail(dv
->devname
, brief
?1+verbose
:0, test
, homehost
); continue;
1187 case 'K': /* Zero superblock */
1188 rv
|= Kill(dv
->devname
, force
, quiet
); continue;
1190 rv
|= Query(dv
->devname
); continue;
1192 rv
|= ExamineBitmap(dv
->devname
, brief
, ss
); continue;
1194 mdfd
= open_mddev(dv
->devname
, 1);
1196 switch(dv
->disposition
) {
1198 rv
|= Manage_runstop(dv
->devname
, mdfd
, 1, quiet
); break;
1200 rv
|= Manage_runstop(dv
->devname
, mdfd
, -1, quiet
); break;
1202 rv
|= Manage_ro(dv
->devname
, mdfd
, 1); break;
1204 rv
|= Manage_ro(dv
->devname
, mdfd
, -1); break;
1213 if (!devlist
&& !scan
) {
1214 fprintf(stderr
, Name
": Cannot monitor: need --scan or at least one device\n");
1218 if (pidfile
&& !daemonise
) {
1219 fprintf(stderr
, Name
": Cannot write a pid file when not in daemon mode\n");
1223 rv
= Monitor(devlist
, mailaddr
, program
,
1224 delay
?delay
:60, daemonise
, scan
, oneshot
,
1225 dosyslog
, configfile
, test
, pidfile
);
1229 if (devs_found
> 1) {
1232 if (size
>= 0 || raiddisks
) {
1233 fprintf(stderr
, Name
": --size, --raiddisks, and --add are exclusing in --grow mode\n");
1237 for (dv
=devlist
->next
; dv
; dv
=dv
->next
) {
1238 rv
= Grow_Add_device(devlist
->devname
, mdfd
, dv
->devname
);
1242 } else if ((size
>= 0) + (raiddisks
!= 0) + (layout
!= UnSet
) + (bitmap_file
!= NULL
)> 1) {
1243 fprintf(stderr
, Name
": can change at most one of size, raiddisks, bitmap, and layout\n");
1246 } else if (layout
!= UnSet
)
1247 rv
= Manage_reconfig(devlist
->devname
, mdfd
, layout
);
1248 else if (size
>= 0 || raiddisks
)
1249 rv
= Grow_reshape(devlist
->devname
, mdfd
, quiet
, backup_file
,
1250 size
, level
, layout
, chunk
, raiddisks
);
1251 else if (bitmap_file
) {
1252 if (delay
== 0) delay
= DEFAULT_BITMAP_DELAY
;
1253 rv
= Grow_addbitmap(devlist
->devname
, mdfd
, bitmap_file
,
1254 bitmap_chunk
, delay
, write_behind
, force
);
1256 fprintf(stderr
, Name
": no changes to --grow\n");