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Diffstat (limited to 'maps.c')
| -rw-r--r-- | maps.c | 185 |
1 files changed, 185 insertions, 0 deletions
@@ -0,0 +1,185 @@ +/* + * mdadm - manage Linux "md" devices aka RAID arrays. + * + * Copyright (C) 2011 Neil Brown <neilb@suse.de> + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Neil Brown + * Email: <neilb@suse.de> + */ + +#include "mdadm.h" + +/* name/number mappings */ + +mapping_t r5layout[] = { + { "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, UnSet } +}; +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, UnSet } +}; + +/* raid0 layout is only needed because of a bug in 3.14 which changed + * the effective layout of raid0 arrays with varying device sizes. + */ +mapping_t r0layout[] = { + { "original", RAID0_ORIG_LAYOUT}, + { "alternate", RAID0_ALT_MULTIZONE_LAYOUT}, + { "1", 1}, /* aka ORIG */ + { "2", 2}, /* aka ALT */ + { "dangerous", 0}, + { NULL, UnSet}, +}; + +mapping_t pers[] = { + { "linear", LEVEL_LINEAR}, + { "raid0", 0}, + { "0", 0}, + { "stripe", 0}, + { "raid1", 1}, + { "1", 1}, + { "mirror", 1}, + { "raid4", 4}, + { "4", 4}, + { "raid5", 5}, + { "5", 5}, + { "multipath", LEVEL_MULTIPATH}, + { "mp", LEVEL_MULTIPATH}, + { "raid6", 6}, + { "6", 6}, + { "raid10", 10}, + { "10", 10}, + { "faulty", LEVEL_FAULTY}, + { "container", LEVEL_CONTAINER}, + { NULL, UnSet } +}; + +mapping_t modes[] = { + { "assemble", ASSEMBLE}, + { "build", BUILD}, + { "create", CREATE}, + { "manage", MANAGE}, + { "misc", MISC}, + { "monitor", MONITOR}, + { "grow", GROW}, + { "incremental", INCREMENTAL}, + { "auto-detect", AUTODETECT}, + { NULL, UnSet } +}; + +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, UnSet } +}; + +mapping_t consistency_policies[] = { + { "unknown", CONSISTENCY_POLICY_UNKNOWN}, + { "none", CONSISTENCY_POLICY_NONE}, + { "resync", CONSISTENCY_POLICY_RESYNC}, + { "bitmap", CONSISTENCY_POLICY_BITMAP}, + { "journal", CONSISTENCY_POLICY_JOURNAL}, + { "ppl", CONSISTENCY_POLICY_PPL}, + { NULL, CONSISTENCY_POLICY_UNKNOWN } +}; + +mapping_t sysfs_array_states[] = { + { "active-idle", ARRAY_ACTIVE_IDLE }, + { "active", ARRAY_ACTIVE }, + { "clear", ARRAY_CLEAR }, + { "inactive", ARRAY_INACTIVE }, + { "suspended", ARRAY_SUSPENDED }, + { "readonly", ARRAY_READONLY }, + { "read-auto", ARRAY_READ_AUTO }, + { "clean", ARRAY_CLEAN }, + { "write-pending", ARRAY_WRITE_PENDING }, + { "broken", ARRAY_BROKEN }, + { NULL, ARRAY_UNKNOWN_STATE } +}; + +char *map_num(mapping_t *map, int num) +{ + while (map->name) { + if (map->num == num) + return map->name; + map++; + } + return NULL; +} + +int map_name(mapping_t *map, char *name) +{ + while (map->name && strcmp(map->name, name) != 0) + map++; + + return map->num; +} |