/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
- * Email: <neilb@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
+ * Email: <neilb@suse.de>
*
* Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004,
* Paul Clements, SteelEye Technology, Inc.
int raiddisks = 0;
int max_disks = MD_SB_DISKS; /* just a default */
int sparedisks = 0;
- struct mddev_ident_s ident;
+ struct mddev_ident ident;
char *configfile = NULL;
char *cp;
char *update = NULL;
int scan = 0;
- char devmode = 0;
+ int devmode = 0;
int runstop = 0;
int readonly = 0;
int write_behind = 0;
char *backup_file = NULL;
int bitmap_chunk = UnSet;
int SparcAdjust = 0;
- mddev_dev_t devlist = NULL;
- mddev_dev_t *devlistend = & devlist;
- mddev_dev_t dv;
+ struct mddev_dev *devlist = NULL;
+ struct mddev_dev **devlistend = & devlist;
+ struct mddev_dev *dv;
int devs_found = 0;
int verbose = 0;
int quiet = 0;
int require_homehost = 1;
char *mailaddr = NULL;
char *program = NULL;
+ int increments = 20;
int delay = 0;
int daemonise = 0;
char *pidfile = NULL;
int oneshot = 0;
+ int spare_sharing = 1;
struct supertype *ss = NULL;
int writemostly = 0;
int re_add = 0;
int dosyslog = 0;
int rebuild_map = 0;
int auto_update_home = 0;
+ char *subarray = NULL;
+ char *remove_path = NULL;
int print_help = 0;
FILE *outf;
int newmode = mode;
/* firstly, some mode-independent options */
switch(opt) {
+ case HelpOptions:
+ print_help = 2;
+ continue;
case 'h':
- if (option_index > 0 &&
- strcmp(long_options[option_index].name, "help-options")==0)
- print_help = 2;
- else
- print_help = 1;
+ print_help = 1;
continue;
case 'V':
continue;
case 'b':
- if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW)
+ if (mode == ASSEMBLE || mode == BUILD || mode == CREATE
+ || mode == GROW || mode == INCREMENTAL
+ || mode == MANAGE)
break; /* b means bitmap */
+ case Brief:
brief = 1;
- if (optarg) {
- fprintf(stderr, Name ": -b cannot have any extra immediately after it, sorry.\n");
- exit(2);
- }
continue;
case 'Y': export++;
*/
switch(opt) {
- case '@': /* just incase they say --manage */
+ case ManageOpt:
newmode = MANAGE;
shortopt = short_bitmap_options;
break;
case 'a':
+ case Add:
case 'r':
+ case Remove:
case 'f':
+ case Fail:
case ReAdd: /* re-add */
if (!mode) {
newmode = MANAGE;
case AutoDetect:
newmode = AUTODETECT; break;
- case '#':
+ case MiscOpt:
case 'D':
case 'E':
case 'X':
case 'o':
case 'w':
case 'W':
+ case WaitOpt:
case Waitclean:
case DetailPlatform:
+ case KillSubarray:
+ case UpdateSubarray:
+ if (opt == KillSubarray || opt == UpdateSubarray) {
+ if (subarray) {
+ fprintf(stderr, Name ": subarray can only"
+ " be specified once\n");
+ exit(2);
+ }
+ subarray = optarg;
+ }
case 'K': if (!mode) newmode = MISC; break;
+ case NoSharing: newmode = MONITOR; break;
}
if (mode && newmode == mode) {
/* everybody happy ! */
mode = newmode;
} else {
/* special case of -c --help */
- if (opt == 'c' &&
+ if ((opt == 'c' || opt == ConfigFile) &&
( strncmp(optarg, "--h", 3)==0 ||
strncmp(optarg, "-h", 2)==0)) {
fputs(Help_config, stdout);
dv->writemostly = writemostly;
dv->re_add = re_add;
dv->used = 0;
- dv->content = NULL;
dv->next = NULL;
*devlistend = dv;
devlistend = &dv->next;
continue;
}
/* No mode yet, and this is the second device ... */
- fprintf(stderr, Name ": An option must be given to set the mode before a second device is listed\n");
+ fprintf(stderr, Name ": An option must be given to set the mode before a second device\n"
+ " (%s) is listed\n", optarg);
exit(2);
}
if (option_index >= 0)
/* if we just set the mode, then done */
switch(opt) {
- case '@':
- case '#':
+ case ManageOpt:
+ case MiscOpt:
case 'A':
case 'B':
case 'C':
if (opt == 1) {
/* an undecorated option - must be a device name.
*/
- if (devs_found > 0 && mode == '@' && !devmode) {
- fprintf(stderr, Name ": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg);
+ if (devs_found > 0 && mode == MANAGE && !devmode) {
+ fprintf(stderr, Name ": Must give one of -a/-r/-f"
+ " for subsequent devices at %s\n", optarg);
exit(2);
}
- if (devs_found > 0 && mode == 'G' && !devmode) {
- fprintf(stderr, Name ": Must give one of -a for devices do add: %s\n", optarg);
+ if (devs_found > 0 && mode == GROW && !devmode) {
+ fprintf(stderr, Name ": Must give -a/--add for"
+ " devices to add: %s\n", optarg);
exit(2);
}
dv = malloc(sizeof(*dv));
dv->writemostly = writemostly;
dv->re_add = re_add;
dv->used = 0;
- dv->content = NULL;
dv->next = NULL;
*devlistend = dv;
devlistend = &dv->next;
/* We've got a mode, and opt is now something else which
* could depend on the mode */
-#define O(a,b) ((a<<8)|b)
+#define O(a,b) ((a<<16)|b)
switch (O(mode,opt)) {
case O(GROW,'c'):
+ case O(GROW,ChunkSize):
case O(CREATE,'c'):
+ case O(CREATE,ChunkSize):
case O(BUILD,'c'): /* chunk or rounding */
+ case O(BUILD,ChunkSize): /* chunk or rounding */
if (chunk) {
fprintf(stderr, Name ": chunk/rounding may only be specified once. "
"Second value is %s.\n", optarg);
}
continue;
+#if 0
case O(ASSEMBLE,AutoHomeHost):
auto_update_home = 1;
continue;
+#endif
case O(INCREMENTAL, 'e'):
case O(CREATE,'e'):
case O(ASSEMBLE,'e'):
continue;
case O(MANAGE,'W'):
+ case O(MANAGE,WriteMostly):
case O(BUILD,'W'):
+ case O(BUILD,WriteMostly):
case O(CREATE,'W'):
+ case O(CREATE,WriteMostly):
/* set write-mostly for following devices */
writemostly = 1;
continue;
optarg);
exit(2);
}
- if (level != 0 && level != -1 && level != 1 && level != -4 && level != -5 && mode == BUILD) {
+ if (level != 0 && level != LEVEL_LINEAR && level != 1 &&
+ level != LEVEL_MULTIPATH && level != LEVEL_FAULTY &&
+ level != 10 &&
+ mode == BUILD) {
fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
optarg);
exit(2);
continue;
case O(GROW, 'p'): /* new layout */
+ case O(GROW, Layout):
if (layout_str) {
fprintf(stderr,Name ": layout may only be sent once. "
"Second value was %s\n", optarg);
continue;
case O(CREATE,'p'): /* raid5 layout */
+ case O(CREATE,Layout):
case O(BUILD,'p'): /* faulty layout */
+ case O(BUILD,Layout):
if (layout != UnSet) {
fprintf(stderr,Name ": layout may only be sent once. "
"Second value was %s\n", optarg);
continue;
case O(CREATE,'a'):
+ case O(CREATE,Auto):
case O(BUILD,'a'):
+ case O(BUILD,Auto):
case O(INCREMENTAL,'a'):
- case O(ASSEMBLE,'a'): /* auto-creation of device node */
+ case O(INCREMENTAL,Auto):
+ case O(ASSEMBLE,'a'):
+ case O(ASSEMBLE,Auto): /* auto-creation of device node */
autof = parse_auto(optarg, "--auto flag", 0);
continue;
continue;
case O(BUILD,'f'): /* force honouring '-n 1' */
+ case O(BUILD,Force): /* force honouring '-n 1' */
case O(GROW,'f'): /* ditto */
+ case O(GROW,Force): /* ditto */
case O(CREATE,'f'): /* force honouring of device list */
+ case O(CREATE,Force): /* force honouring of device list */
case O(ASSEMBLE,'f'): /* force assembly */
+ case O(ASSEMBLE,Force): /* force assembly */
case O(MISC,'f'): /* force zero */
+ case O(MISC,Force): /* force zero */
force=1;
continue;
case O(CREATE,'N'):
case O(ASSEMBLE,'N'):
+ case O(MISC,'N'):
if (ident.name[0]) {
fprintf(stderr, Name ": name cannot be set twice. "
"Second value %s.\n", optarg);
exit(2);
}
+ if (mode == MISC && !subarray) {
+ fprintf(stderr, Name ": -N/--name only valid with --update-subarray in misc mode\n");
+ exit(2);
+ }
if (strlen(optarg) > 32) {
fprintf(stderr, Name ": name '%s' is too long, 32 chars max.\n",
optarg);
continue;
case O(ASSEMBLE,'m'): /* super-minor for array */
+ case O(ASSEMBLE,SuperMinor):
if (ident.super_minor != UnSet) {
fprintf(stderr, Name ": super-minor cannot be set twice. "
"Second value: %s.\n", optarg);
continue;
case O(ASSEMBLE,'U'): /* update the superblock */
+ case O(MISC,'U'):
if (update) {
fprintf(stderr, Name ": Can only update one aspect of superblock, both %s and %s given.\n",
update, optarg);
exit(2);
}
+ if (mode == MISC && !subarray) {
+ fprintf(stderr, Name ": Only subarrays can be updated in misc mode\n");
+ exit(2);
+ }
update = optarg;
if (strcmp(update, "sparc2.2")==0)
continue;
exit(outf == stdout ? 0 : 2);
case O(INCREMENTAL,NoDegraded):
+ fprintf(stderr, Name ": --no-degraded is deprecated in Incremental mode\n");
case O(ASSEMBLE,NoDegraded): /* --no-degraded */
runstop = -1; /* --stop isn't allowed for --assemble,
* so we overload slightly */
continue;
- case O(ASSEMBLE,'c'): /* config file */
+ case O(ASSEMBLE,'c'):
+ case O(ASSEMBLE,ConfigFile):
case O(INCREMENTAL, 'c'):
+ case O(INCREMENTAL, ConfigFile):
case O(MISC, 'c'):
+ case O(MISC, ConfigFile):
case O(MONITOR,'c'):
+ case O(MONITOR,ConfigFile):
if (configfile) {
fprintf(stderr, Name ": configfile cannot be set twice. "
"Second value is %s.\n", optarg);
continue;
case O(MONITOR,'m'): /* mail address */
+ case O(MONITOR,EMail):
if (mailaddr)
fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n",
optarg);
continue;
case O(MONITOR,'p'): /* alert program */
+ case O(MONITOR,ProgramOpt): /* alert program */
if (program)
fprintf(stderr, Name ": only specify one alter program. %s ignored.\n",
optarg);
program = optarg;
continue;
+ case O(MONITOR,'r'): /* rebuild increments */
+ case O(MONITOR,Increment):
+ increments = atoi(optarg);
+ if (increments>99 || increments<1) {
+ fprintf(stderr, Name ": please specify positive integer between 1 and 99 as rebuild increments.\n");
+ exit(2);
+ }
+ continue;
+
case O(MONITOR,'d'): /* delay in seconds */
case O(GROW, 'd'):
case O(BUILD,'d'): /* delay for bitmap updates */
}
continue;
case O(MONITOR,'f'): /* daemonise */
+ case O(MONITOR,Fork):
daemonise = 1;
continue;
case O(MONITOR,'i'): /* pid */
openlog("mdadm", LOG_PID, SYSLOG_FACILITY);
dosyslog = 1;
continue;
-
+ case O(MONITOR, NoSharing):
+ spare_sharing = 0;
+ continue;
/* now the general management options. Some are applicable
* to other modes. None have arguments.
*/
case O(GROW,'a'):
- case O(MANAGE,'a'): /* add a drive */
+ case O(GROW,Add):
+ case O(MANAGE,'a'):
+ case O(MANAGE,Add): /* add a drive */
devmode = 'a';
re_add = 0;
continue;
re_add = 1;
continue;
case O(MANAGE,'r'): /* remove a drive */
+ case O(MANAGE,Remove):
devmode = 'r';
continue;
case O(MANAGE,'f'): /* set faulty */
+ case O(MANAGE,Fail):
+ case O(INCREMENTAL,'f'):
+ case O(INCREMENTAL,Remove):
+ case O(INCREMENTAL,Fail): /* r for incremental is taken, use f
+ * even though we will both fail and
+ * remove the device */
devmode = 'f';
continue;
case O(INCREMENTAL,'R'):
}
runstop = -1;
continue;
+ case O(MANAGE,'t'):
+ test = 1;
+ continue;
case O(MISC,'Q'):
case O(MISC,'D'):
case O(MISC,'o'):
case O(MISC,'w'):
case O(MISC,'W'):
+ case O(MISC, WaitOpt):
case O(MISC, Waitclean):
case O(MISC, DetailPlatform):
+ case O(MISC, KillSubarray):
+ case O(MISC, UpdateSubarray):
if (devmode && devmode != opt &&
(devmode == 'E' || (opt == 'E' && devmode != 'Q'))) {
- fprintf(stderr, Name ": --examine/-E cannot be given with -%c\n",
- devmode =='E'?opt:devmode);
+ fprintf(stderr, Name ": --examine/-E cannot be given with ");
+ if (devmode == 'E') {
+ if (option_index >= 0)
+ fprintf(stderr, "--%s\n",
+ long_options[option_index].name);
+ else
+ fprintf(stderr, "-%c\n", opt);
+ } else if (isalpha(devmode))
+ fprintf(stderr, "-%c\n", devmode);
+ else
+ fprintf(stderr, "previous option\n");
exit(2);
}
devmode = opt;
continue;
case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */
+ case O(ASSEMBLE,Bitmap):
if (!optarg) {
fprintf(stderr, Name ": bitmap file needed with -b in --assemble mode\n");
exit(2);
continue;
case O(BUILD,'b'):
- case O(CREATE,'b'): /* here we create the bitmap */
+ case O(BUILD,Bitmap):
+ case O(CREATE,'b'):
+ case O(CREATE,Bitmap): /* here we create the bitmap */
if (strcmp(optarg, "none") == 0) {
fprintf(stderr, Name ": '--bitmap none' only"
" support for --grow\n");
}
/* FALL THROUGH */
case O(GROW,'b'):
+ case O(GROW,Bitmap):
if (strcmp(optarg, "internal")== 0 ||
strcmp(optarg, "none")== 0 ||
strchr(optarg, '/') != NULL) {
continue;
}
/* probable typo */
- fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n");
+ fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n"
+ " not '%s'\n", optarg);
exit(2);
case O(GROW,BitmapChunk):
continue;
case O(INCREMENTAL, 'r'):
+ case O(INCREMENTAL, RebuildMapOpt):
rebuild_map = 1;
continue;
+ case O(INCREMENTAL, IncrementalPath):
+ remove_path = optarg;
+ continue;
}
/* We have now processed all the valid options. Anything else is
* an error
}
}
+ if ((mode != MISC || devmode != 'E') &&
+ geteuid() != 0) {
+ fprintf(stderr, Name ": must be super-user to perform this action\n");
+ exit(1);
+ }
+
ident.autof = autof;
rv = 0;
rv = Manage_ro(devlist->devname, mdfd, readonly);
if (!rv && devs_found>1)
rv = Manage_subdevs(devlist->devname, mdfd,
- devlist->next, verbose-quiet);
+ devlist->next, verbose-quiet, test);
if (!rv && readonly < 0)
rv = Manage_ro(devlist->devname, mdfd, readonly);
if (!rv && runstop)
if (devs_found == 1 && ident.uuid_set == 0 &&
ident.super_minor == UnSet && ident.name[0] == 0 && !scan ) {
/* Only a device has been given, so get details from config file */
- mddev_ident_t array_ident = conf_get_ident(devlist->devname);
+ struct mddev_ident *array_ident = conf_get_ident(devlist->devname);
if (array_ident == NULL) {
fprintf(stderr, Name ": %s not identified in config file.\n",
devlist->devname);
exit(1);
}
for (dv = devlist ; dv ; dv=dv->next) {
- mddev_ident_t array_ident = conf_get_ident(dv->devname);
+ struct mddev_ident *array_ident = conf_get_ident(dv->devname);
if (array_ident == NULL) {
fprintf(stderr, Name ": %s not identified in config file.\n",
dv->devname);
verbose-quiet, force);
}
} else {
- mddev_ident_t array_list = conf_get_ident(NULL);
- mddev_dev_t devlist = conf_get_devs();
+ struct mddev_ident *a, *array_list = conf_get_ident(NULL);
+ struct mddev_dev *devlist = conf_get_devs();
int cnt = 0;
+ int failures, successes;
if (devlist == NULL) {
fprintf(stderr, Name ": No devices listed in conf file were found.\n");
exit(1);
fprintf(stderr, Name ": --backup_file not meaningful with a --scan assembly.\n");
exit(1);
}
- for (; array_list; array_list = array_list->next) {
- if (array_list->devname &&
- strcasecmp(array_list->devname, "<ignore>") == 0)
- continue;
- if (array_list->autof == 0)
- array_list->autof = autof;
+ for (a = array_list; a ; a = a->next) {
+ a->assembled = 0;
+ if (a->autof == 0)
+ a->autof = autof;
+ }
+ do {
+ failures = 0;
+ successes = 0;
+ rv = 0;
+ for (a = array_list; a ; a = a->next) {
+ int r;
+ if (a->assembled)
+ continue;
+ if (a->devname &&
+ strcasecmp(a->devname, "<ignore>") == 0)
+ continue;
- rv |= Assemble(ss, array_list->devname,
- array_list,
- NULL, NULL,
- readonly, runstop, NULL,
- homehost, require_homehost,
- verbose-quiet, force);
- cnt++;
- }
+ r = Assemble(ss, a->devname,
+ a,
+ NULL, NULL,
+ readonly, runstop, NULL,
+ homehost, require_homehost,
+ verbose-quiet, force);
+ if (r == 0) {
+ a->assembled = 1;
+ successes++;
+ } else
+ failures++;
+ rv |= r;
+ cnt++;
+ }
+ } while (failures && successes);
if (homehost && cnt == 0) {
/* Maybe we can auto-assemble something.
* Repeatedly call Assemble in auto-assemble mode
int acnt;
ident.autof = autof;
do {
- mddev_dev_t devlist = conf_get_devs();
+ struct mddev_dev *devlist = conf_get_devs();
acnt = 0;
do {
rv2 = Assemble(ss, NULL,
} while (rv2!=2);
/* Incase there are stacked devices, we need to go around again */
} while (acnt);
+#if 0
if (cnt == 0 && auto_update_home && homehost) {
/* Nothing found, maybe we need to bootstrap homehost info */
do {
/* Incase there are stacked devices, we need to go around again */
} while (acnt);
}
+#endif
if (cnt == 0 && rv == 0) {
fprintf(stderr, Name ": No arrays found in config file or automatically\n");
rv = 1;
struct mdstat_ent *ms = mdstat_read(0, 1);
struct mdstat_ent *e;
struct map_ent *map = NULL;
+ int members;
int v = verbose>1?0:verbose+1;
+ for (members = 0; members <= 1; members++) {
for (e=ms ; e ; e=e->next) {
char *name;
struct map_ent *me;
+ int member = e->metadata_version &&
+ strncmp(e->metadata_version,
+ "external:/", 10) == 0;
+ if (members != member)
+ continue;
me = map_by_devnum(&map, e->devnum);
if (me && me->path
&& strcmp(me->path, "/unknown") != 0)
export, test,
homehost);
else
- rv |= WaitClean(name, v);
+ rv |= WaitClean(name, -1, v);
put_md_name(name);
}
+ }
free_mdstat(ms);
} else if (devmode == 'S' && scan) {
/* apply --stop to all devices in /proc/mdstat */
export, test, homehost);
continue;
case 'K': /* Zero superblock */
- rv |= Kill(dv->devname, force, quiet,0);
+ if (ss)
+ rv |= Kill(dv->devname, ss, force, quiet,0);
+ else {
+ int q = quiet;
+ do {
+ rv |= Kill(dv->devname, NULL, force, q, 0);
+ q = 1;
+ } while (rv == 0);
+ rv &= ~2;
+ }
continue;
case 'Q':
rv |= Query(dv->devname); continue;
case 'X':
rv |= ExamineBitmap(dv->devname, brief, ss); continue;
case 'W':
+ case WaitOpt:
rv |= Wait(dv->devname); continue;
case Waitclean:
- rv |= WaitClean(dv->devname, verbose-quiet); continue;
+ rv |= WaitClean(dv->devname, -1, verbose-quiet); continue;
+ case KillSubarray:
+ rv |= Kill_subarray(dv->devname, subarray, quiet);
+ continue;
+ case UpdateSubarray:
+ if (update == NULL) {
+ fprintf(stderr,
+ Name ": -U/--update must be specified with --update-subarray\n");
+ rv |= 1;
+ continue;
+ }
+ rv |= Update_subarray(dv->devname, subarray, update, &ident, quiet);
+ continue;
}
mdfd = open_mddev(dv->devname, 1);
if (mdfd>=0) {
rv = 1;
break;
}
+ if (delay == 0) {
+ if (get_linux_version() > 2006016)
+ /* mdstat responds to poll */
+ delay = 1000;
+ else
+ delay = 60;
+ }
rv= Monitor(devlist, mailaddr, program,
delay?delay:60, daemonise, scan, oneshot,
- dosyslog, test, pidfile);
+ dosyslog, test, pidfile, increments, spare_sharing);
break;
case GROW:
if (array_size >= 0) {
/* alway impose array size first, independent of
* anything else
+ * Do not allow level or raid_disks changes at the
+ * same time as that can be irreversibly destructive.
*/
struct mdinfo sra;
int err;
+ if (raiddisks || level != UnSet) {
+ fprintf(stderr, Name ": cannot change array size in same operation "
+ "as changing raiddisks or level.\n"
+ " Change size first, then check that data is still intact.\n");
+ rv = 1;
+ break;
+ }
sysfs_init(&sra, mdfd, 0);
if (array_size == 0)
err = sysfs_set_str(&sra, NULL, "array_size", "default");
": --incremental --scan meaningless without --run.\n");
break;
}
+ if (devmode == 'f') {
+ fprintf(stderr, Name
+ ": --incremental --scan --fail not supported.\n");
+ break;
+ }
rv = IncrementalScan(verbose);
}
if (!devlist) {
rv = 1;
break;
}
- rv = Incremental(devlist->devname, verbose-quiet, runstop,
- ss, homehost, require_homehost, autof);
+ if (devmode == 'f')
+ rv = IncrementalRemove(devlist->devname, remove_path,
+ verbose-quiet);
+ else
+ rv = Incremental(devlist->devname, verbose-quiet,
+ runstop, ss, homehost,
+ require_homehost, autof);
break;
case AUTODETECT:
autodetect();
projects / thirdparty / mdadm.git / blobdiff