/*
* 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 chunk = 0;
long long size = -1;
+ long long array_size = -1;
int level = UnSet;
int layout = UnSet;
+ char *layout_str = NULL;
int raiddisks = 0;
int max_disks = MD_SB_DISKS; /* just a default */
int sparedisks = 0;
char *homehost = NULL;
char sys_hostname[256];
+ int require_homehost = 1;
char *mailaddr = NULL;
char *program = NULL;
+ int increments = 20;
int delay = 0;
int daemonise = 0;
char *pidfile = NULL;
int rebuild_map = 0;
int auto_update_home = 0;
- int copies;
int print_help = 0;
FILE *outf;
shortopt, long_options,
&option_index)) != -1) {
int newmode = mode;
- /* firstly, some mode-independant options */
+ /* firstly, some mode-independent options */
switch(opt) {
case 'h':
if (option_index > 0 &&
continue;
case HomeHost:
- homehost = optarg;
+ if (strcasecmp(optarg, "<ignore>") == 0)
+ require_homehost = 0;
+ else
+ homehost = optarg;
continue;
case ':':
case 'w':
case 'W':
case Waitclean:
+ case DetailPlatform:
case 'K': if (!mode) newmode = MISC; break;
}
if (mode && newmode == mode) {
* could depend on the mode */
#define O(a,b) ((a<<8)|b)
switch (O(mode,opt)) {
+ case O(GROW,'c'):
case O(CREATE,'c'):
case O(BUILD,'c'): /* chunk or rounding */
if (chunk) {
}
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'):
case O(GROW,'z'):
- case O(CREATE,'z'): /* size */
+ case O(CREATE,'z'):
+ case O(BUILD,'z'): /* size */
if (size >= 0) {
fprintf(stderr, Name ": size may only be specified once. "
"Second value is %s.\n", optarg);
if (strcmp(optarg, "max")==0)
size = 0;
else {
- size = strtoll(optarg, &c, 10);
- if (!optarg[0] || *c || size < 4) {
+ size = parse_size(optarg);
+ if (size < 8) {
fprintf(stderr, Name ": invalid size: %s\n",
optarg);
exit(2);
}
+ /* convert sectors to K */
+ size /= 2;
}
continue;
- case O(GROW,'l'): /* hack - needed to understand layout */
+ case O(GROW,'Z'): /* array size */
+ if (array_size >= 0) {
+ fprintf(stderr, Name ": array-size may only be specified once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (strcmp(optarg, "max") == 0)
+ array_size = 0;
+ else {
+ array_size = parse_size(optarg);
+ if (array_size <= 0) {
+ fprintf(stderr, Name ": invalid array size: %s\n",
+ optarg);
+ exit(2);
+ }
+ }
+ continue;
+
+ case O(GROW,'l'):
case O(CREATE,'l'):
case O(BUILD,'l'): /* set raid level*/
if (level != UnSet) {
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);
ident.level = level;
continue;
+ case O(GROW, 'p'): /* new layout */
+ if (layout_str) {
+ fprintf(stderr,Name ": layout may only be sent once. "
+ "Second value was %s\n", optarg);
+ exit(2);
+ }
+ layout_str = optarg;
+ /* 'Grow' will parse the value */
+ continue;
+
case O(CREATE,'p'): /* raid5 layout */
case O(BUILD,'p'): /* faulty layout */
- case O(GROW, 'p'): /* faulty reconfig */
if (layout != UnSet) {
fprintf(stderr,Name ": layout may only be sent once. "
"Second value was %s\n", optarg);
exit(2);
case 5:
- case 6:
layout = map_name(r5layout, optarg);
if (layout==UnSet) {
fprintf(stderr, Name ": layout %s not understood for raid5.\n",
exit(2);
}
break;
+ case 6:
+ layout = map_name(r6layout, optarg);
+ if (layout==UnSet) {
+ fprintf(stderr, Name ": layout %s not understood for raid6.\n",
+ optarg);
+ exit(2);
+ }
+ break;
case 10:
- /* 'f', 'o' or 'n' followed by a number <= raid_disks */
- if ((optarg[0] != 'n' && optarg[0] != 'f' && optarg[0] != 'o') ||
- (copies = strtoul(optarg+1, &cp, 10)) < 1 ||
- copies > 200 ||
- *cp) {
+ layout = parse_layout_10(optarg);
+ if (layout < 0) {
fprintf(stderr, Name ": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg);
exit(2);
}
- if (optarg[0] == 'n')
- layout = 256 + copies;
- else if (optarg[0] == 'o')
- layout = 0x10000 + (copies<<8) + 1;
- else
- layout = 1 + (copies<<8);
break;
- case -5: /* Faulty
- * modeNNN
- */
-
- {
- int ln = strcspn(optarg, "0123456789");
- char *m = strdup(optarg);
- int mode;
- m[ln] = 0;
- mode = map_name(faultylayout, m);
- if (mode == UnSet) {
+ case LEVEL_FAULTY:
+ /* Faulty
+ * modeNNN
+ */
+ layout = parse_layout_faulty(optarg);
+ if (layout == -1) {
fprintf(stderr, Name ": layout %s not understood for faulty.\n",
optarg);
exit(2);
}
- layout = mode | (atoi(optarg+ln)<< ModeShift);
- }
+ break;
}
continue;
" 'summaries', 'homehost', 'byteorder', 'devicesize'.\n");
exit(outf == stdout ? 0 : 2);
+ case O(INCREMENTAL,NoDegraded):
case O(ASSEMBLE,NoDegraded): /* --no-degraded */
runstop = -1; /* --stop isn't allowed for --assemble,
* so we overload slightly */
program = optarg;
continue;
+ case O(MONITOR,'r'): /* rebuild increments */
+ 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 */
case O(MISC,'w'):
case O(MISC,'W'):
case O(MISC, Waitclean):
+ case O(MISC, DetailPlatform):
if (devmode && devmode != opt &&
(devmode == 'E' || (opt == 'E' && devmode != 'Q'))) {
fprintf(stderr, Name ": --examine/-E cannot be given with -%c\n",
}
if (homehost == NULL)
- homehost = conf_get_homehost();
+ homehost = conf_get_homehost(&require_homehost);
if (homehost == NULL || strcmp(homehost, "<system>")==0) {
if (gethostname(sys_hostname, sizeof(sys_hostname)) == 0) {
sys_hostname[sizeof(sys_hostname)-1] = 0;
array_ident->autof = autof;
rv |= Assemble(ss, devlist->devname, array_ident,
NULL, backup_file,
- readonly, runstop, update, homehost, verbose-quiet, force);
+ readonly, runstop, update,
+ homehost, require_homehost,
+ verbose-quiet, force);
}
} else if (!scan)
rv = Assemble(ss, devlist->devname, &ident,
devlist->next, backup_file,
- readonly, runstop, update, homehost, verbose-quiet, force);
+ readonly, runstop, update,
+ homehost, require_homehost,
+ verbose-quiet, force);
else if (devs_found>0) {
if (update && devs_found > 1) {
fprintf(stderr, Name ": can only update a single array at a time\n");
array_ident->autof = autof;
rv |= Assemble(ss, dv->devname, array_ident,
NULL, backup_file,
- readonly, runstop, update, homehost, verbose-quiet, force);
+ readonly, runstop, update,
+ homehost, require_homehost,
+ verbose-quiet, force);
}
} else {
mddev_ident_t array_list = conf_get_ident(NULL);
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;
rv |= Assemble(ss, array_list->devname,
array_list,
NULL, NULL,
- readonly, runstop, NULL, homehost, verbose-quiet, force);
+ readonly, runstop, NULL,
+ homehost, require_homehost,
+ verbose-quiet, force);
cnt++;
}
if (homehost && cnt == 0) {
rv2 = Assemble(ss, NULL,
&ident,
devlist, NULL,
- readonly, runstop, NULL, homehost, verbose-quiet, force);
+ readonly, runstop, NULL,
+ homehost, require_homehost,
+ verbose-quiet, force);
if (rv2==0) {
cnt++;
acnt++;
} 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 {
rv2 = Assemble(ss, NULL,
&ident,
NULL, NULL,
- readonly, runstop, "homehost", homehost, verbose-quiet, force);
+ readonly, runstop, "homehost",
+ homehost, require_homehost,
+ verbose-quiet, force);
if (rv2==0) {
cnt++;
acnt++;
/* 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;
rv = Build(devlist->devname, chunk, level, layout,
raiddisks, devlist->next, assume_clean,
bitmap_file, bitmap_chunk, write_behind,
- delay, verbose-quiet, autof);
+ delay, verbose-quiet, autof, size);
break;
case CREATE:
if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
rv = Examine(devlist, scan?(verbose>1?0:verbose+1):brief,
export, scan,
SparcAdjust, ss, homehost);
+ } else if (devmode == DetailPlatform) {
+ rv = Detail_Platform(ss ? ss->ss : NULL, ss ? scan : 1, verbose);
} else {
if (devlist == NULL) {
- if (devmode=='D' && scan) {
- /* apply --detail to all devices in /proc/mdstat */
+ if ((devmode=='D' || devmode == Waitclean) && scan) {
+ /* apply --detail or --wait-clean to
+ * all devices in /proc/mdstat
+ */
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 = get_md_name(e->devnum);
+ 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)
+ name = me->path;
+ else
+ name = get_md_name(e->devnum);
if (!name) {
fprintf(stderr, Name ": cannot find device file for %s\n",
e->dev);
continue;
}
- rv |= Detail(name, verbose>1?0:verbose+1,
- export, test, homehost);
+ if (devmode == 'D')
+ rv |= Detail(name, v,
+ export, test,
+ homehost);
+ else
+ 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 */
/* Due to possible stacking of devices, repeat until
put_md_name(name);
}
+ free_mdstat(ms);
} while (!last && err);
if (err) rv |= 1;
} else {
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 & 2) == 0);
+ rv &= ~2;
+ }
continue;
case 'Q':
rv |= Query(dv->devname); continue;
case 'W':
rv |= Wait(dv->devname); continue;
case Waitclean:
- rv |= WaitClean(dv->devname, verbose-quiet); continue;
+ rv |= WaitClean(dv->devname, -1, verbose-quiet); continue;
}
mdfd = open_mddev(dv->devname, 1);
if (mdfd>=0) {
rv = 1;
break;
}
+ if (delay == 0) {
+ if (get_linux_version() > 20616)
+ /* 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);
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");
+ else
+ err = sysfs_set_num(&sra, NULL, "array_size", array_size / 2);
+ if (err < 0) {
+ if (errno == E2BIG)
+ fprintf(stderr, Name ": --array-size setting"
+ " is too large.\n");
+ else
+ fprintf(stderr, Name ": current kernel does"
+ " not support setting --array-size\n");
+ rv = 1;
+ break;
+ }
+ }
if (devs_found > 1) {
/* must be '-a'. */
- if (size >= 0 || raiddisks) {
- fprintf(stderr, Name ": --size, --raiddisks, and --add are exclusing in --grow mode\n");
+ if (size >= 0 || raiddisks || chunk || layout_str != NULL || bitmap_file) {
+ fprintf(stderr, Name ": --add cannot be used with other geometry changes in --grow mode\n");
rv = 1;
break;
}
if (rv)
break;
}
- } else if ((size >= 0) + (raiddisks != 0) + (layout != UnSet) + (bitmap_file != NULL)> 1) {
- fprintf(stderr, Name ": can change at most one of size, raiddisks, bitmap, and layout\n");
- rv = 1;
- break;
- } else if (layout != UnSet)
- rv = Manage_reconfig(devlist->devname, mdfd, layout);
- else if (size >= 0 || raiddisks)
- rv = Grow_reshape(devlist->devname, mdfd, quiet, backup_file,
- size, level, layout, chunk, raiddisks);
- else if (bitmap_file) {
- if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+ } else if (bitmap_file) {
+ if (size >= 0 || raiddisks || chunk || layout_str != NULL) {
+ fprintf(stderr, Name ": --bitmap changes cannot be used with other geometry changes in --grow mode\n");
+ rv = 1;
+ break;
+ }
+ if (delay == 0)
+ delay = DEFAULT_BITMAP_DELAY;
rv = Grow_addbitmap(devlist->devname, mdfd, bitmap_file,
bitmap_chunk, delay, write_behind, force);
- } else
+ } else if (size >= 0 || raiddisks != 0 || layout_str != NULL
+ || chunk != 0 || level != UnSet) {
+ rv = Grow_reshape(devlist->devname, mdfd, quiet, backup_file,
+ size, level, layout_str, chunk, raiddisks);
+ } else if (array_size < 0)
fprintf(stderr, Name ": no changes to --grow\n");
break;
case INCREMENTAL:
break;
}
rv = Incremental(devlist->devname, verbose-quiet, runstop,
- ss, homehost, autof);
+ ss, homehost, require_homehost, autof);
break;
case AUTODETECT:
autodetect();
projects / thirdparty / mdadm.git / blobdiff