/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2007 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2010 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
#include "mdadm.h"
-char Version[] = Name " - v2.6.3 - 20th August 2007\n";
+char Version[] = Name " - v3.2.1 - 28th March 2011\n";
/*
* File: ReadMe.c
* At the time if writing, there is only minimal support.
*/
-char short_options[]="-ABCDEFGIQhVXWvqbc:i:l:p:m:n:x:u:c:d:z:U:sarfRSow1tye:";
+char short_options[]="-ABCDEFGIQhVXYWZ:vqbc:i:l:p:m:n:x:u:c:d:z:U:N:sarfRSow1tye:";
char short_bitmap_options[]=
- "-ABCDEFGIQhVXWvqb:c:i:l:p:m:n:x:u:c:d:z:U:sarfRSow1tye:";
+ "-ABCDEFGIQhVXYWZ:vqb:c:i:l:p:m:n:x:u:c:d:z:U:N:sarfRSow1tye:";
char short_bitmap_auto_options[]=
- "-ABCDEFGIQhVXWvqb:c:i:l:p:m:n:x:u:c:d:z:U:sa:rfRSow1tye:";
+ "-ABCDEFGIQhVXYWZ:vqb:c:i:l:p:m:n:x:u:c:d:z:U:N:sa:rfRSow1tye:";
struct option long_options[] = {
- {"manage", 0, 0, '@'},
- {"misc", 0, 0, '#'},
+ {"manage", 0, 0, ManageOpt},
+ {"misc", 0, 0, MiscOpt},
{"assemble", 0, 0, 'A'},
{"build", 0, 0, 'B'},
{"create", 0, 0, 'C'},
{"query", 0, 0, 'Q'},
{"examine-bitmap", 0, 0, 'X'},
{"auto-detect", 0, 0, AutoDetect},
+ {"detail-platform", 0, 0, DetailPlatform},
+ {"kill-subarray", 1, 0, KillSubarray},
+ {"update-subarray", 1, 0, UpdateSubarray},
+ {"udev-rules", 2, 0, UdevRules},
/* synonyms */
{"monitor", 0, 0, 'F'},
-
+
/* after those will normally come the name of the md device */
{"help", 0, 0, 'h'},
- {"help-options",0,0,'h'},
+ {"help-options",0,0, HelpOptions},
{"version", 0, 0, 'V'},
{"verbose", 0, 0, 'v'},
{"quiet", 0, 0, 'q'},
/* For create or build: */
- {"chunk", 1, 0, 'c'},
- {"rounding", 1, 0, 'c'}, /* for linear, chunk is really a rounding number */
+ {"chunk", 1, 0, ChunkSize},
+ {"rounding", 1, 0, ChunkSize}, /* for linear, chunk is really a
+ * rounding number */
{"level", 1, 0, 'l'}, /* 0,1,4,5,6,linear */
- {"parity", 1, 0, 'p'}, /* {left,right}-{a,}symmetric */
- {"layout", 1, 0, 'p'},
+ {"parity", 1, 0, Layout}, /* {left,right}-{a,}symmetric */
+ {"layout", 1, 0, Layout},
{"raid-disks",1, 0, 'n'},
{"raid-devices",1, 0, 'n'},
{"spare-disks",1,0, 'x'},
{"spare-devices",1,0, 'x'},
{"size", 1, 0, 'z'},
- {"auto", 1, 0, 'a'}, /* also for --assemble */
+ {"auto", 1, 0, Auto}, /* also for --assemble */
{"assume-clean",0,0, AssumeClean },
{"metadata", 1, 0, 'e'}, /* superblock format */
- {"bitmap", 1, 0, 'b'},
+ {"bitmap", 1, 0, Bitmap},
{"bitmap-chunk", 1, 0, BitmapChunk},
{"write-behind", 2, 0, WriteBehind},
- {"write-mostly",0, 0, 'W'},
+ {"write-mostly",0, 0, WriteMostly},
{"re-add", 0, 0, ReAdd},
{"homehost", 1, 0, HomeHost},
- {"auto-update-homehost", 0, 0, AutoHomeHost},
{"symlinks", 1, 0, Symlinks},
/* For assemble */
{"uuid", 1, 0, 'u'},
- {"super-minor",1,0, 'm'},
+ {"super-minor",1,0, SuperMinor},
{"name", 1, 0, 'N'},
- {"config", 1, 0, 'c'},
+ {"config", 1, 0, ConfigFile},
{"scan", 0, 0, 's'},
- {"force", 0, 0, 'f'},
+ {"force", 0, 0, Force},
{"update", 1, 0, 'U'},
/* Management */
- {"add", 0, 0, 'a'},
- {"remove", 0, 0, 'r'},
- {"fail", 0, 0, 'f'},
- {"set-faulty",0, 0, 'f'},
+ {"add", 0, 0, Add},
+ {"remove", 0, 0, Remove},
+ {"fail", 0, 0, Fail},
+ {"set-faulty",0, 0, Fail},
{"run", 0, 0, 'R'},
{"stop", 0, 0, 'S'},
{"readonly", 0, 0, 'o'},
{"readwrite", 0, 0, 'w'},
{"no-degraded",0,0, NoDegraded },
- {"wait", 0, 0, 'W'},
+ {"wait", 0, 0, WaitOpt},
+ {"wait-clean", 0, 0, Waitclean },
/* For Detail/Examine */
- {"brief", 0, 0, 'b'},
+ {"brief", 0, 0, Brief},
{"export", 0, 0, 'Y'},
{"sparc2.2", 0, 0, Sparc22},
{"test", 0, 0, 't'},
/* For Follow/monitor */
- {"mail", 1, 0, 'm'},
- {"program", 1, 0, 'p'},
- {"alert", 1, 0, 'p'},
+ {"mail", 1, 0, EMail},
+ {"program", 1, 0, ProgramOpt},
+ {"alert", 1, 0, ProgramOpt},
+ {"increment", 1, 0, Increment},
{"delay", 1, 0, 'd'},
- {"daemonise", 0, 0, 'f'},
- {"daemonize", 0, 0, 'f'},
+ {"daemonise", 0, 0, Fork},
+ {"daemonize", 0, 0, Fork},
{"oneshot", 0, 0, '1'},
{"pid-file", 1, 0, 'i'},
{"syslog", 0, 0, 'y'},
+ {"no-sharing", 0, 0, NoSharing},
+
/* For Grow */
{"backup-file", 1,0, BackupFile},
+ {"invalid-backup",0,0,InvalidBackup},
+ {"array-size", 1, 0, 'Z'},
/* For Incremental */
- {"rebuild-map", 0, 0, 'r'},
+ {"rebuild-map", 0, 0, RebuildMapOpt},
+ {"path", 1, 0, IncrementalPath},
+
{0, 0, 0, 0}
};
" mdadm --grow options device\n"
" resize/reshape an active array\n"
" mdadm --incremental device\n"
-" add a device to an array as appropriate\n"
+" add/remove a device to/from an array as appropriate\n"
" mdadm --monitor options...\n"
" Monitor one or more array for significant changes.\n"
" mdadm device options...\n"
" --examine-bitmap -X: Display the detail of a bitmap file\n"
" --monitor -F : monitor (follow) some arrays\n"
" --grow -G : resize/ reshape and array\n"
-" --incremental -I : add a single device to an array as appropriate\n"
+" --incremental -I : add/remove a single device to/from an array as appropriate\n"
" --query -Q : Display general information about how a\n"
" device relates to the md driver\n"
" --auto-detect : Start arrays auto-detected by the kernel\n"
" --size= -z : Size (in K) of each drive in RAID1/4/5/6/10 - optional\n"
" --force -f : Honour devices as listed on command line. Don't\n"
" : insert a missing drive for RAID5.\n"
-" --auto(=p) -a : Automatically allocate new (partitioned) md array if needed.\n"
" --assume-clean : Assume the array is already in-sync. This is dangerous.\n"
" --bitmap-chunk= : chunksize of bitmap in bitmap file (Kilobytes)\n"
" --delay= -d : seconds between bitmap updates\n"
" --scan -s : scan config file for missing information\n"
" --force -f : Assemble the array even if some superblocks appear out-of-date\n"
" --update= -U : Update superblock: try '-A --update=?' for list of options.\n"
-" --auto(=p) -a : Automatically allocate new (partitioned) md array if needed.\n"
" --no-degraded : Do not start any degraded arrays - default unless --scan.\n"
"\n"
" For detail or examine:\n"
" --query -Q : Display general information about how a\n"
" device relates to the md driver\n"
" --detail -D : Display details of an array\n"
+" --detail-platform : Display hardware/firmware details\n"
" --examine -E : Examine superblock on an array component\n"
" --examine-bitmap -X: Display contents of a bitmap file\n"
" --zero-superblock : erase the MD superblock from a device.\n"
" --mail= -m : Address to mail alerts of failure to\n"
" --program= -p : Program to run when an event is detected\n"
" --alert= : same as --program\n"
+" --syslog -y : Report alerts via syslog\n"
+" --increment= -r : Report RebuildNN events in the given increment. default=20\n"
" --delay= -d : seconds of delay between polling state. default=60\n"
" --config= -c : specify a different config file\n"
" --scan -s : find mail-address/program in config file\n"
" --layout= -p : For a FAULTY array, set/change the error mode.\n"
" --size= -z : Change the active size of devices in an array.\n"
" : This is useful if all devices have been replaced\n"
-" : with larger devices.\n"
-" --raid-disks= -n : Change the number of active devices in an array.\n"
-" : array.\n"
+" : with larger devices. Value is in Kilobytes, or\n"
+" : the special word 'max' meaning 'as large as possible'.\n"
+" --raid-devices= -n : Change the number of active devices in an array.\n"
" --bitmap= -b : Add or remove a write-intent bitmap.\n"
+" --backup-file= file : A file on a differt device to store data for a\n"
+" : short time while increasing raid-devices on a\n"
+" : RAID4/5/6 array. Not needed when a spare is present.\n"
+" --array-size= -Z : Change visible size of array. This does not change\n"
+" : any data on the device, and is not stable across restarts.\n"
;
char Help_incr[] =
-"Usage: mdadm --incremental [-Rqrs] device\n"
+"Usage: mdadm --incremental [-Rqrsf] device\n"
"\n"
"This usage allows for incremental assembly of md arrays. Devices can be\n"
"added one at a time as they are discovered. Once an array has all expected\n"
"devices, it will be started.\n"
"\n"
-"Options that are valid with incremental assembly (-I --incremental) more are:\n"
-" --run -R : run arrays as soon as a minimal number of devices are\n"
-" : present rather than waiting for all expected.\n"
-" --quiet -q : Don't print any information messages, just errors.\n"
-" --rebuild -r : Rebuild the 'map' file that mdadm uses for tracking\n"
-" : partial arrays.\n"
-" --scan -s : Use with -R to start any arrays that have the minimal\n"
-" : required number of devices, but are not yet started.\n"
+"Optionally, the process can be reversed by using the fail option.\n"
+"When fail mode is invoked, mdadm will see if the device belongs to an array\n"
+"and then both fail (if needed) and remove the device from that array.\n"
+"\n"
+"Options that are valid with incremental assembly (-I --incremental) are:\n"
+" --run -R : Run arrays as soon as a minimal number of devices are\n"
+" : present rather than waiting for all expected.\n"
+" --quiet -q : Don't print any information messages, just errors.\n"
+" --rebuild-map -r : Rebuild the 'map' file that mdadm uses for tracking\n"
+" : partial arrays.\n"
+" --scan -s : Use with -R to start any arrays that have the minimal\n"
+" : required number of devices, but are not yet started.\n"
+" --fail -f : First fail (if needed) and then remove device from\n"
+" : any array that it is a member of.\n"
;
char Help_config[] =
"\n"
;
-
-/* name/number mappings */
-
-mapping_t r5layout[] = {
- { "left-asymmetric", 0},
- { "right-asymmetric", 1},
- { "left-symmetric", 2},
- { "right-symmetric", 3},
-
- { "default", 2},
- { "la", 0},
- { "ra", 1},
- { "ls", 2},
- { "rs", 3},
- { NULL, 0}
-};
-
-mapping_t pers[] = {
- { "linear", -1},
- { "raid0", 0},
- { "0", 0},
- { "stripe", 0},
- { "raid1", 1},
- { "1", 1},
- { "mirror", 1},
- { "raid4", 4},
- { "4", 4},
- { "raid5", 5},
- { "5", 5},
- { "multipath", -4},
- { "mp", -4},
- { "raid6", 6},
- { "6", 6},
- { "raid10", 10},
- { "10", 10},
- { "faulty", -5},
- { NULL, 0}
-};
-
-
-mapping_t modes[] = {
- { "assemble", ASSEMBLE},
- { "build", BUILD},
- { "create", CREATE},
- { "manage", MANAGE},
- { "misc", MISC},
- { "monitor", MONITOR},
- { "grow", GROW},
- { "incremental", INCREMENTAL},
- { "auto-detect", AUTODETECT},
-};
-
-mapping_t faultylayout[] = {
- { "write-transient", WriteTransient },
- { "wt", WriteTransient },
- { "read-transient", ReadTransient },
- { "rt", ReadTransient },
- { "write-persistent", WritePersistent },
- { "wp", WritePersistent },
- { "read-persistent", ReadPersistent },
- { "rp", ReadPersistent },
- { "write-all", WriteAll },
- { "wa", WriteAll },
- { "read-fixable", ReadFixable },
- { "rf", ReadFixable },
-
- { "clear", ClearErrors},
- { "flush", ClearFaults},
- { "none", ClearErrors},
- { "default", ClearErrors},
- { NULL, 0}
-};
projects / thirdparty / mdadm.git / blobdiff