/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 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
* 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>
*/
#include "mdadm.h"
-char Version[] = Name " - v2.4.1 - 4 April 2006\n";
+char Version[] = Name " - v3.1.2 - 10th March 2010\n";
/*
* File: ReadMe.c
* At the time if writing, there is only minimal support.
*/
-char short_options[]="-ABCDEFGQhVXvqbc:i:l:p:m:n:x:u:c:d:z:U:sarfRSow1tye:";
-char short_bitmap_auto_options[]="-ABCDEFGQhVXvqb:c:i:l:p:m:n:x:u:c:d:z:U:sa:rfRSow1tye:";
+char short_options[]="-ABCDEFGIQhVXWZ:vqbc:i:l:p:m:n:x:u:c:d:z:U:N:sarfRSow1tye:";
+char short_bitmap_options[]=
+ "-ABCDEFGIQhVXWZ:vqb:c:i:l:p:m:n:x:u:c:d:z:U:N:sarfRSow1tye:";
+char short_bitmap_auto_options[]=
+ "-ABCDEFGIQhVXWZ:vqb:c:i:l:p:m:n:x:u:c:d:z:U:N:sa:rfRSow1tye:";
struct option long_options[] = {
{"manage", 0, 0, '@'},
{"examine", 0, 0, 'E'},
{"follow", 0, 0, 'F'},
{"grow", 0, 0, 'G'},
+ {"incremental",0,0, 'I'},
{"zero-superblock", 0, 0, 'K'}, /* deliberately no a short_option */
{"query", 0, 0, 'Q'},
{"examine-bitmap", 0, 0, 'X'},
+ {"auto-detect", 0, 0, AutoDetect},
+ {"detail-platform", 0, 0, DetailPlatform},
+ {"kill-subarray", 1, 0, KillSubarray},
/* 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'},
{"write-mostly",0, 0, 'W'},
{"re-add", 0, 0, ReAdd},
{"homehost", 1, 0, HomeHost},
+#if 0
{"auto-update-homehost", 0, 0, AutoHomeHost},
+#endif
+ {"symlinks", 1, 0, Symlinks},
/* For assemble */
{"uuid", 1, 0, 'u'},
{"readonly", 0, 0, 'o'},
{"readwrite", 0, 0, 'w'},
{"no-degraded",0,0, NoDegraded },
+ {"wait", 0, 0, 'W'},
+ {"wait-clean", 0, 0, Waitclean },
/* For Detail/Examine */
{"brief", 0, 0, 'b'},
+ {"export", 0, 0, 'Y'},
{"sparc2.2", 0, 0, Sparc22},
{"test", 0, 0, 't'},
{"mail", 1, 0, 'm'},
{"program", 1, 0, 'p'},
{"alert", 1, 0, 'p'},
+ {"increment", 1, 0, 'r'},
{"delay", 1, 0, 'd'},
{"daemonise", 0, 0, 'f'},
{"daemonize", 0, 0, 'f'},
{"oneshot", 0, 0, '1'},
{"pid-file", 1, 0, 'i'},
+ {"syslog", 0, 0, 'y'},
/* For Grow */
{"backup-file", 1,0, BackupFile},
-
+ {"array-size", 1, 0, 'Z'},
+
+ /* For Incremental */
+ {"rebuild-map", 0, 0, 'r'},
{0, 0, 0, 0}
};
" make changes to an existing array.\n"
" mdadm --misc options... devices\n"
" report on or modify various md related devices.\n"
+" mdadm --grow options device\n"
+" resize/reshape an active array\n"
+" mdadm --incremental device\n"
+" add a device to an array as appropriate\n"
" mdadm --monitor options...\n"
" Monitor one or more array for significant changes.\n"
" mdadm device options...\n"
" --verbose -v : Be more verbose about what is happening\n"
" --quiet -q : Don't print un-necessary messages\n"
" --brief -b : Be less verbose, more brief\n"
+" --export -Y : With --detail, use key=value format for easy\n"
+" import into environment\n"
" --force -f : Override normal checks and be more forceful\n"
"\n"
" --assemble -A : Assemble an array\n"
" --examine -E : Examine superblock on an array component\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"
" --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"
;
/*
"\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"
" --config= -c : config file\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: one of sparc2.2, super-minor or summaries\n"
-" --auto(=p) -a : Automatically allocate new (partitioned) md array if needed.\n"
+" --update= -U : Update superblock: try '-A --update=?' for list of options.\n"
" --no-degraded : Do not start any degraded arrays - default unless --scan.\n"
"\n"
" For detail or examine:\n"
" --readonly -o : mark array as readonly\n"
" --readwrite -w : mark array as readwrite\n"
" --zero-superblock : erase the MD superblock from a device.\n"
+" --wait -W : wait for recovery/resync/reshape to finish.\n"
;
*/
" for a full array are present\n"
" --force -f : Assemble the array even if some superblocks appear\n"
" : out-of-date. This involves modifying the superblocks.\n"
-" --update= -U : Update superblock: one of sparc2.2, super-minor or summaries\n"
+" --update= -U : Update superblock: try '-A --update=?' for option list.\n"
" --no-degraded : Assemble but do not start degraded arrays.\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"
" --readonly -o : mark array as readonly\n"
" --readwrite -w : mark array as readwrite\n"
" --test -t : exit status 0 if ok, 1 if degrade, 2 if dead, 4 if missing\n"
+" --wait -W : wait for resync/rebuild/recovery to finish\n"
;
char Help_monitor[] =
" --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"
+" --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"
"\n"
"This usage causes mdadm to attempt to reconfigure a running array.\n"
"This is only possibly if the kernel being used supports a particular\n"
-"reconfiguration. This version only supports changing the number of\n"
-"devices in a RAID1, and changing the active size of all devices in\n"
-"a RAID1/4/5/6.\n"
+"reconfiguration. This version supports changing the number of\n"
+"devices in a RAID1/5/6, changing the active size of all devices in\n"
+"a RAID1/4/5/6, adding or removing a write-intent bitmap, and changing\n"
+"the error mode for a 'FAULTY' array.\n"
"\n"
"Options that are valid with the grow (-G --grow) mode are:\n"
+" --level= -l : Tell mdadm what level the array is so that it can\n"
+" : interpret '--layout' properly.\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 a RAID1\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"
+"\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"
+;
char Help_config[] =
"The /etc/mdadm.conf config file:\n\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},
+ { "left-asymmetric", ALGORITHM_LEFT_ASYMMETRIC},
+ { "right-asymmetric", ALGORITHM_RIGHT_ASYMMETRIC},
+ { "left-symmetric", ALGORITHM_LEFT_SYMMETRIC},
+ { "right-symmetric", ALGORITHM_RIGHT_SYMMETRIC},
+
+ { "default", ALGORITHM_LEFT_SYMMETRIC},
+ { "la", ALGORITHM_LEFT_ASYMMETRIC},
+ { "ra", ALGORITHM_RIGHT_ASYMMETRIC},
+ { "ls", ALGORITHM_LEFT_SYMMETRIC},
+ { "rs", ALGORITHM_RIGHT_SYMMETRIC},
+
+ { "parity-first", ALGORITHM_PARITY_0},
+ { "parity-last", ALGORITHM_PARITY_N},
+ { "ddf-zero-restart", ALGORITHM_RIGHT_ASYMMETRIC},
+ { "ddf-N-restart", ALGORITHM_LEFT_ASYMMETRIC},
+ { "ddf-N-continue", ALGORITHM_LEFT_SYMMETRIC},
+
+ { NULL, 0}
+};
+mapping_t r6layout[] = {
+ { "left-asymmetric", ALGORITHM_LEFT_ASYMMETRIC},
+ { "right-asymmetric", ALGORITHM_RIGHT_ASYMMETRIC},
+ { "left-symmetric", ALGORITHM_LEFT_SYMMETRIC},
+ { "right-symmetric", ALGORITHM_RIGHT_SYMMETRIC},
+
+ { "default", ALGORITHM_LEFT_SYMMETRIC},
+ { "la", ALGORITHM_LEFT_ASYMMETRIC},
+ { "ra", ALGORITHM_RIGHT_ASYMMETRIC},
+ { "ls", ALGORITHM_LEFT_SYMMETRIC},
+ { "rs", ALGORITHM_RIGHT_SYMMETRIC},
+
+ { "parity-first", ALGORITHM_PARITY_0},
+ { "parity-last", ALGORITHM_PARITY_N},
+ { "ddf-zero-restart", ALGORITHM_ROTATING_ZERO_RESTART},
+ { "ddf-N-restart", ALGORITHM_ROTATING_N_RESTART},
+ { "ddf-N-continue", ALGORITHM_ROTATING_N_CONTINUE},
+
+ { "left-asymmetric-6", ALGORITHM_LEFT_ASYMMETRIC_6},
+ { "right-asymmetric-6", ALGORITHM_RIGHT_ASYMMETRIC_6},
+ { "left-symmetric-6", ALGORITHM_LEFT_SYMMETRIC_6},
+ { "right-symmetric-6", ALGORITHM_RIGHT_SYMMETRIC_6},
+ { "parity-first-6", ALGORITHM_PARITY_0_6},
+
{ NULL, 0}
};
mapping_t pers[] = {
- { "linear", -1},
+ { "linear", LEVEL_LINEAR},
{ "raid0", 0},
{ "0", 0},
{ "stripe", 0},
{ "4", 4},
{ "raid5", 5},
{ "5", 5},
- { "multipath", -4},
- { "mp", -4},
+ { "multipath", LEVEL_MULTIPATH},
+ { "mp", LEVEL_MULTIPATH},
{ "raid6", 6},
{ "6", 6},
{ "raid10", 10},
{ "10", 10},
- { "faulty", -5},
+ { "faulty", LEVEL_FAULTY},
+ { "container", LEVEL_CONTAINER},
{ NULL, 0}
};
{ "misc", MISC},
{ "monitor", MONITOR},
{ "grow", GROW},
+ { "incremental", INCREMENTAL},
+ { "auto-detect", AUTODETECT},
};
mapping_t faultylayout[] = {
projects / thirdparty / mdadm.git / blobdiff