CEPH(8)

NAME
ceph - ceph administration tool

SYNOPSIS
ceph auth [ add | caps | del | export | get | get-key | get-or-create | get-or-create-key | import | list | print-key | print_key ] ...

ceph compact

ceph config-key [ del | exists | get | list | put ] ...

ceph df {detail}

ceph fs [ ls | new | reset | rm ] ...

ceph fsid

ceph health {detail}

ceph heap [ dump | start_profiler | stop_profiler | release | stats ] ...

ceph injectargs <injectedargs> [ <injectedargs>... ]

ceph log <logtext> [ <logtext>... ]

ceph mds [ add_data_pool | cluster_down | cluster_up | compat | deactivate | dump | fail | getmap | newfs | remove_data_pool | rm | rmfailed | set | set_max_mds | set_state | setmap | stat | stop | tell ] ...

ceph mon [ add | dump | getmap | remove | stat ] ...

ceph mon_status

ceph osd [ blacklist | blocked-by | create | deep-scrub | df | down | dump | erasure-code-profile | find | getcrushmap | getmap | getmaxosd | in | lspools | map | metadata | out | pause | perf | pg-temp | primary-affinity | primary-temp | repair | reweight | reweight-by-pg | rm | scrub | set | setcrushmap | setmaxosd  | stat | thrash | tree | unpause | unset ] ...

ceph osd crush [ add | add-bucket | create-or-move | dump | get-tunable | link | move | remove | rename-bucket | reweight | reweight-all | reweight-subtree | rm | rule | set | set-tunable | show-tunables | tunables | unlink ] ...

ceph osd pool [ create | delete | get | get-quota | ls | mksnap | rename | rmsnap | set | set-quota | stats ] ...

ceph osd tier [ add | add-cache | cache-mode | remove | remove-overlay | set-overlay ] ...

ceph pg [ debug | deep-scrub | dump | dump_json | dump_pools_json | dump_stuck | force_create_pg | getmap | ls | ls-by-osd | ls-by-pool | ls-by-primary | map | repair | scrub | send_pg_creates | set_full_ratio | set_nearfull_ratio | stat ] ...

ceph quorum [ enter | exit ]

ceph quorum_status

ceph report { <tags> [ <tags>... ] }

ceph scrub

ceph status

ceph sync force {--yes-i-really-mean-it} {--i-know-what-i-am-doing}

ceph tell <name (type.id)> <args> [<args>...]

ceph version

DESCRIPTION

ceph is a control utility which is used for manual deployment and maintenance of a Ceph cluster. It provides a diverse set of commands that allows deployment of monitors, OSDs, placement groups, MDS and overall maintenance, administration of the cluster.

COMMANDS

  auth

Manage authentication keys. It is used for adding, removing, exporting or updating of authentication keys for a particular entity such as a monitor or OSD. It uses some additional subcommands.

Subcommand add adds authentication info for a particular entity from input file, or random key if no input is given and/or any caps specified in the command.

Usage:

ceph auth add <entity> {<caps> [<caps>...]}

Subcommand caps updates caps for name from caps specified in the command.

Usage:

ceph auth caps <entity> <caps> [<caps>...]

Subcommand del deletes all caps for name.

Usage:

ceph auth del <entity>

Subcommand export writes keyring for requested entity, or master keyring if none given.

Usage:

ceph auth export {<entity>}

Subcommand get writes keyring file with requested key.

Usage:

ceph auth get <entity>

Subcommand get-key displays requested key.

Usage:

ceph auth get-key <entity>

Subcommand get-or-create adds authentication info for a particular entity from input file, or random key if no input given and/or any caps specified in the command.

Usage:

ceph auth get-or-create <entity> {<caps> [<caps>...]}

Subcommand get-or-create-key gets or adds key for name from system/caps pairs specified in the command. If key already exists, any given caps must match the existing caps for that key.

Usage:

ceph auth get-or-create-key <entity> {<caps> [<caps>...]}

Subcommand import reads keyring from input file.

Usage:

ceph auth import

Subcommand list lists authentication state.

Usage:

ceph auth list

Subcommand print-key displays requested key.

Usage:

ceph auth print-key <entity>

Subcommand print_key displays requested key.

Usage:

ceph auth print_key <entity>

  compact

Causes compaction of monitor's leveldb storage.

Usage:

ceph compact

  config-key

Manage configuration key. It uses some additional subcommands.

Subcommand del deletes configuration key.

Usage:

ceph config-key del <key>

Subcommand exists checks for configuration keys existence.

Usage:

ceph config-key exists <key>

Subcommand get gets the configuration key.

Usage:

ceph config-key get <key>

Subcommand list lists configuration keys.

Usage:

ceph config-key list

Subcommand put puts configuration key and values.

Usage:

ceph config-key put <key> {<val>}

  df

Show cluster's free space status.

Usage:

ceph df {detail}

  fs

Manage cephfs filesystems. It uses some additional subcommands.

Subcommand ls to list filesystems

Usage:

ceph fs ls

Subcommand new to make a new filesystem using named pools <metadata> and <data>

Usage:

ceph fs new <fs_name> <metadata> <data>

Subcommand reset is used for disaster recovery only: reset to a single-MDS map

Usage:

ceph fs reset <fs_name> {--yes-i-really-mean-it}

Subcommand rm to disable the named filesystem

Usage:

ceph fs rm <fs_name> {--yes-i-really-mean-it}

  fsid

Show cluster's FSID/UUID.

Usage:

ceph fsid

  health

Show cluster's health.

Usage:

ceph health {detail}

  heap

Show heap usage info (available only if compiled with tcmalloc)

Usage:

ceph heap dump|start_profiler|stop_profiler|release|stats

  injectargs

Inject configuration arguments into monitor.

Usage:

ceph injectargs <injected_args> [<injected_args>...]

  log

Log supplied text to the monitor log.

Usage:

ceph log <logtext> [<logtext>...]

  mds

Manage metadata server configuration and administration. It uses some additional subcommands.

Subcommand add_data_pool adds data pool.

Usage:

ceph mds add_data_pool <pool>

Subcommand cluster_down takes mds cluster down.

Usage:

ceph mds cluster_down

Subcommand cluster_up brings mds cluster up.

Usage:

ceph mds cluster_up

Subcommand compat manages compatible features. It uses some additional subcommands.

Subcommand rm_compat removes compatible feature.

Usage:

ceph mds compat rm_compat <int[0-]>

Subcommand rm_incompat removes incompatible feature.

Usage:

ceph mds compat rm_incompat <int[0-]>

Subcommand show shows mds compatibility settings.

Usage:

ceph mds compat show

Subcommand deactivate stops mds.

Usage:

ceph mds deactivate <who>

Subcommand dump dumps information, optionally from epoch.

Usage:

ceph mds dump {<int[0-]>}

Subcommand fail forces mds to status fail.

Usage:

ceph mds fail <who>

Subcommand getmap gets MDS map, optionally from epoch.

Usage:

ceph mds getmap {<int[0-]>}

Subcommand newfs makes new filesystem using pools <metadata> and <data>.

Usage:

ceph mds newfs <int[0-]> <int[0-]> {--yes-i-really-mean-it}

Subcommand remove_data_pool removes data pool.

Usage:

ceph mds remove_data_pool <pool>

Subcommand rm removes inactive mds.

Usage:

ceph mds rm <int[0-]> <name> (type.id)>

Subcommand rmfailed removes failed mds.

Usage:

ceph mds rmfailed <int[0-]>

Subcommand set set mds parameter <var> to <val>

Usage:

ceph mds set max_mds|max_file_size|allow_new_snaps|inline_data <va> {<confirm>}

Subcommand set_max_mds sets max MDS index.

Usage:

ceph mds set_max_mds <int[0-]>

Subcommand set_state sets mds state of <gid> to <numeric-state>.

Usage:

ceph mds set_state <int[0-]> <int[0-20]>

Subcommand setmap sets mds map; must supply correct epoch number.

Usage:

ceph mds setmap <int[0-]>

Subcommand stat shows MDS status.

Usage:

ceph mds stat

Subcommand stop stops mds.

Usage:

ceph mds stop <who>

Subcommand tell sends command to particular mds.

Usage:

ceph mds tell <who> <args> [<args>...]

  mon

Manage monitor configuration and administration. It uses some additional subcommands.

Subcommand add adds new monitor named <name> at <addr>.

Usage:

ceph mon add <name> <IPaddr[:port]>

Subcommand dump dumps formatted monmap (optionally from epoch)

Usage:

ceph mon dump {<int[0-]>}

Subcommand getmap gets monmap.

Usage:

ceph mon getmap {<int[0-]>}

Subcommand remove removes monitor named <name>.

Usage:

ceph mon remove <name>

Subcommand stat summarizes monitor status.

Usage:

ceph mon stat

  mon_status

Reports status of monitors.

Usage:

ceph mon_status

  osd

Manage OSD configuration and administration. It uses some additional subcommands.

Subcommand blacklist manage blacklisted clients. It uses some additional subcommands.

Subcommand add add <addr> to blacklist (optionally until <expire> seconds from now)

Usage:

ceph osd blacklist add <EntityAddr> {<float[0.0-]>}

Subcommand ls show blacklisted clients

Usage:

ceph osd blacklist ls

Subcommand rm remove <addr> from blacklist

Usage:

ceph osd blacklist rm <EntityAddr>

Subcommand blocked-by prints a histogram of which OSDs are blocking their peers

Usage:

ceph osd blocked-by

Subcommand create creates new osd (with optional UUID).

Usage:

ceph osd create {<uuid>}

Subcommand crush is used for CRUSH management. It uses some additional subcommands.

Subcommand add adds or updates crushmap position and weight for <name> with <weight> and location <args>.

Usage:

ceph osd crush add <osdname (id|osd.id)> <float[0.0-]> <args> [<args>...]

Subcommand add-bucket adds no-parent (probably root) crush bucket <name> of type <type>.

Usage:

ceph osd crush add-bucket <name> <type>

Subcommand create-or-move creates entry or moves existing entry for <name> <weight> at/to location <args>.

Usage:

ceph osd crush create-or-move <osdname (id|osd.id)> <float[0.0-]> <args>
[<args>...]

Subcommand dump dumps crush map.

Usage:

ceph osd crush dump

Subcommand get-tunable get crush tunable straw_calc_version

Usage:

ceph osd crush get-tunable straw_calc_version

Subcommand link links existing entry for <name> under location <args>.

Usage:

ceph osd crush link <name> <args> [<args>...]

Subcommand move moves existing entry for <name> to location <args>.

Usage:

ceph osd crush move <name> <args> [<args>...]

Subcommand remove removes <name> from crush map (everywhere, or just at <ancestor>).

Usage:

ceph osd crush remove <name> {<ancestor>}

Subcommand rename-bucket renames buchket <srcname> to <stname>

Usage:

ceph osd crush rename-bucket <srcname> <dstname>

Subcommand reweight change <name>'s weight to <weight> in crush map.

Usage:

ceph osd crush reweight <name> <float[0.0-]>

Subcommand reweight-all recalculate the weights for the tree to ensure they sum correctly

Usage:

ceph osd crush reweight-all

Subcommand reweight-subtree changes all leaf items beneath <name> to <weight> in crush map

Usage:

ceph osd crush reweight-subtree <name> <weight>

Subcommand rm removes <name> from crush map (everywhere, or just at <ancestor>).

Usage:

ceph osd crush rm <name> {<ancestor>}

Subcommand rule is used for creating crush rules. It uses some additional subcommands.

Subcommand create-erasure creates crush rule <name> for erasure coded pool created with <profile> (default default).

Usage:

ceph osd crush rule create-erasure <name> {<profile>}

Subcommand create-simple creates crush rule <name> to start from <root>, replicate across buckets of type <type>, using a choose mode of <firstn|indep> (default firstn; indep best for erasure pools).

Usage:

ceph osd crush rule create-simple <name> <root> <type> {firstn|indep}

Subcommand dump dumps crush rule <name> (default all).

Usage:

ceph osd crush rule dump {<name>}

Subcommand list lists crush rules.

Usage:

ceph osd crush rule list

Subcommand ls lists crush rules.

Usage:

ceph osd crush rule ls

Subcommand rm removes crush rule <name>.

Usage:

ceph osd crush rule rm <name>

Subcommand set used alone, sets crush map from input file.

Usage:

ceph osd crush set

Subcommand set with osdname/osd.id update crushmap position and weight for <name> to <weight> with location <args>.

Usage:

ceph osd crush set <osdname (id|osd.id)> <float[0.0-]> <args> [<args>...]

Subcommand set-tunable set crush tunable <tunable> to <value>. The only tunable that can be set is straw_calc_version.

Usage:

ceph osd crush set-tunable straw_calc_version <value>

Subcommand show-tunables shows current crush tunables.

Usage:

ceph osd crush show-tunables

Subcommand tunables sets crush tunables values to <profile>.

Usage:

ceph osd crush tunables legacy|argonaut|bobtail|firefly|hammer|optimal|default

Subcommand unlink unlinks <name> from crush map (everywhere, or just at <ancestor>).

Usage:

ceph osd crush unlink <name> {<ancestor>}

Subcommand df shows OSD utilization

Usage:

ceph osd df {plain|tree}

Subcommand deep-scrub initiates deep scrub on specified osd.

Usage:

ceph osd deep-scrub <who>

Subcommand down sets osd(s) <id> [<id>...] down.

Usage:

ceph osd down <ids> [<ids>...]

Subcommand dump prints summary of OSD map.

Usage:

ceph osd dump {<int[0-]>}

Subcommand erasure-code-profile is used for managing the erasure code profiles. It uses some additional subcommands.

Subcommand get gets erasure code profile <name>.

Usage:

ceph osd erasure-code-profile get <name>

Subcommand ls lists all erasure code profiles.

Usage:

ceph osd erasure-code-profile ls

Subcommand rm removes erasure code profile <name>.

Usage:

ceph osd erasure-code-profile rm <name>

Subcommand set creates erasure code profile <name> with [<key[=value]> ...] pairs. Add a --force at the end to override an existing profile (IT IS RISKY).

Usage:

ceph osd erasure-code-profile set <name> {<profile> [<profile>...]}

Subcommand find find osd <id> in the CRUSH map and shows its location.

Usage:

ceph osd find <int[0-]>

Subcommand getcrushmap gets CRUSH map.

Usage:

ceph osd getcrushmap {<int[0-]>}

Subcommand getmap gets OSD map.

Usage:

ceph osd getmap {<int[0-]>}

Subcommand getmaxosd shows largest OSD id.

Usage:

ceph osd getmaxosd

Subcommand in sets osd(s) <id> [<id>...] in.

Usage:

ceph osd in <ids> [<ids>...]

Subcommand lost marks osd as permanently lost. THIS DESTROYS DATA IF NO MORE REPLICAS EXIST, BE CAREFUL.

Usage:

ceph osd lost <int[0-]> {--yes-i-really-mean-it}

Subcommand ls shows all OSD ids.

Usage:

ceph osd ls {<int[0-]>}

Subcommand lspools lists pools.

Usage:

ceph osd lspools {<int>}

Subcommand map finds pg for <object> in <pool>.

Usage:

ceph osd map <poolname> <objectname>

Subcommand metadata fetches metadata for osd <id>.

Usage:

ceph osd metadata <int[0-]>

Subcommand out sets osd(s) <id> [<id>...] out.

Usage:

ceph osd out <ids> [<ids>...]

Subcommand pause pauses osd.

Usage:

ceph osd pause

Subcommand perf prints dump of OSD perf summary stats.

Usage:

ceph osd perf

Subcommand pg-temp set pg_temp mapping pgid:[<id> [<id>...]] (developers only).

Usage:

ceph osd pg-temp <pgid> {<id> [<id>...]}

Subcommand pool is used for managing data pools. It uses some additional subcommands.

Subcommand create creates pool.

Usage:

ceph osd pool create <poolname> <int[0-]> {<int[0-]>} {replicated|erasure}
{<erasure_code_profile>} {<ruleset>} {<int>}

Subcommand delete deletes pool.

Usage:

ceph osd pool delete <poolname> {<poolname>} {--yes-i-really-really-mean-it}

Subcommand get gets pool parameter <var>.

Usage:

ceph osd pool get <poolname> size|min_size|crash_replay_interval|pg_num|
pgp_num|crush_ruleset|auid|write_fadvise_dontneed

Only for tiered pools:

ceph osd pool get <poolname> hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|
target_max_objects|target_max_bytes|cache_target_dirty_ratio|
cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|
min_read_recency_for_promote

Only for erasure coded pools:

ceph osd pool get <poolname> erasure_code_profile

Subcommand get-quota obtains object or byte limits for pool.

Usage:

ceph osd pool get-quota <poolname>

Subcommand ls list pools

Usage:

ceph osd pool ls {detail}

Subcommand mksnap makes snapshot <snap> in <pool>.

Usage:

ceph osd pool mksnap <poolname> <snap>

Subcommand rename renames <srcpool> to <destpool>.

Usage:

ceph osd pool rename <poolname> <poolname>

Subcommand rmsnap removes snapshot <snap> from <pool>.

Usage:

ceph osd pool rmsnap <poolname> <snap>

Subcommand set sets pool parameter <var> to <val>.

Usage:

ceph osd pool set <poolname> size|min_size|crash_replay_interval|pg_num|
pgp_num|crush_ruleset|hashpspool|nodelete|nopgchange|nosizechange|
hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|debug_fake_ec_pool|
target_max_bytes|target_max_objects|cache_target_dirty_ratio|
cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|auid|
min_read_recency_for_promote|write_fadvise_dontneed
<val> {--yes-i-really-mean-it}

Subcommand set-quota sets object or byte limit on pool.

Usage:

ceph osd pool set-quota <poolname> max_objects|max_bytes <val>

Subcommand stats obtain stats from all pools, or from specified pool.

Usage:

ceph osd pool stats {<name>}

Subcommand primary-affinity adjust osd primary-affinity from 0.0 <=<weight> <= 1.0

Usage:

ceph osd primary-affinity <osdname (id|osd.id)> <float[0.0-1.0]>

Subcommand primary-temp sets primary_temp mapping pgid:<id>|-1 (developers only).

Usage:

ceph osd primary-temp <pgid> <id>

Subcommand repair initiates repair on a specified osd.

Usage:

ceph osd repair <who>

Subcommand reweight reweights osd to 0.0 < <weight> < 1.0.

Usage:

osd reweight <int[0-]> <float[0.0-1.0]>

Subcommand reweight-by-pg reweight OSDs by PG distribution [overload-percentage-for-consideration, default 120].

Usage:

ceph osd reweight-by-pg {<int[100-]>} {<poolname> [<poolname...]}

Subcommand reweight-by-utilization reweight OSDs by utilization [overload-percentage-for-consideration, default 120].

Usage:

ceph osd reweight-by-utilization {<int[100-]>}

Subcommand rm removes osd(s) <id> [<id>...] in the cluster.

Usage:

ceph osd rm <ids> [<ids>...]

Subcommand scrub initiates scrub on specified osd.

Usage:

ceph osd scrub <who>

Subcommand set sets <key>.

Usage:

ceph osd set full|pause|noup|nodown|noout|noin|nobackfill|
norebalance|norecover|noscrub|nodeep-scrub|notieragent

Subcommand setcrushmap sets crush map from input file.

Usage:

ceph osd setcrushmap

Subcommand setmaxosd sets new maximum osd value.

Usage:

ceph osd setmaxosd <int[0-]>

Subcommand stat prints summary of OSD map.

Usage:

ceph osd stat

Subcommand thrash thrashes OSDs for <num_epochs>.

Usage:

ceph osd thrash <int[0-]>

Subcommand tier is used for managing tiers. It uses some additional subcommands.

Subcommand add adds the tier <tierpool> (the second one) to base pool <pool> (the first one).

Usage:

ceph osd tier add <poolname> <poolname> {--force-nonempty}

Subcommand add-cache adds a cache <tierpool> (the second one) of size <size> to existing pool <pool> (the first one).

Usage:

ceph osd tier add-cache <poolname> <poolname> <int[0-]>

Subcommand cache-mode specifies the caching mode for cache tier <pool>.

Usage:

ceph osd tier cache-mode <poolname> none|writeback|forward|readonly|
readforward|readproxy

Subcommand remove removes the tier <tierpool> (the second one) from base pool <pool> (the first one).

Usage:

ceph osd tier remove <poolname> <poolname>

Subcommand remove-overlay removes the overlay pool for base pool <pool>.

Usage:

ceph osd tier remove-overlay <poolname>

Subcommand set-overlay set the overlay pool for base pool <pool> to be <overlaypool>.

Usage:

ceph osd tier set-overlay <poolname> <poolname>

Subcommand tree prints OSD tree.

Usage:

ceph osd tree {<int[0-]>}

Subcommand unpause unpauses osd.

Usage:

ceph osd unpause

Subcommand unset unsets <key>.

Usage:

ceph osd unset full|pause|noup|nodown|noout|noin|nobackfill|
norebalance|norecover|noscrub|nodeep-scrub|notieragent

  pg

It is used for managing the placement groups in OSDs. It uses some additional subcommands.

Subcommand debug shows debug info about pgs.

Usage:

ceph pg debug unfound_objects_exist|degraded_pgs_exist

Subcommand deep-scrub starts deep-scrub on <pgid>.

Usage:

ceph pg deep-scrub <pgid>

Subcommand dump shows human-readable versions of pg map (only 'all' valid with plain).

Usage:

ceph pg dump {all|summary|sum|delta|pools|osds|pgs|pgs_brief} [{all|summary|sum|delta|pools|osds|pgs|pgs_brief...]}

Subcommand dump_json shows human-readable version of pg map in json only.

Usage:

ceph pg dump_json {all|summary|sum|delta|pools|osds|pgs|pgs_brief} [{all|summary|sum|delta|pools|osds|pgs|pgs_brief...]}

Subcommand dump_pools_json shows pg pools info in json only.

Usage:

ceph pg dump_pools_json

Subcommand dump_stuck shows information about stuck pgs.

Usage:

ceph pg dump_stuck {inactive|unclean|stale|undersized|degraded [inactive|unclean|stale|undersized|degraded...]}
{<int>}

Subcommand force_create_pg forces creation of pg <pgid>.

Usage:

ceph pg force_create_pg <pgid>

Subcommand getmap gets binary pg map to -o/stdout.

Usage:

ceph pg getmap

Subcommand ls lists pg with specific pool, osd, state

Usage:

ceph pg ls {<int>} {active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}

Subcommand ls-by-osd lists pg on osd [osd]

Usage:

ceph pg ls-by-osd <osdname (id|osd.id)> {<int>}
{active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}

Subcommand ls-by-pool lists pg with pool = [poolname | poolid]

Usage:

ceph pg ls-by-pool <poolstr> {<int>} {active|
clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}

Subcommand ls-by-primary lists pg with primary = [osd]

Usage:

ceph pg ls-by-primary <osdname (id|osd.id)> {<int>}
{active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}

Subcommand map shows mapping of pg to osds.

Usage:

ceph pg map <pgid>

Subcommand repair starts repair on <pgid>.

Usage:

ceph pg repair <pgid>

Subcommand scrub starts scrub on <pgid>.

Usage:

ceph pg scrub <pgid>

Subcommand send_pg_creates triggers pg creates to be issued.

Usage:

ceph pg send_pg_creates

Subcommand set_full_ratio sets ratio at which pgs are considered full.

Usage:

ceph pg set_full_ratio <float[0.0-1.0]>

Subcommand set_nearfull_ratio sets ratio at which pgs are considered nearly full.

Usage:

ceph pg set_nearfull_ratio <float[0.0-1.0]>

Subcommand stat shows placement group status.

Usage:

ceph pg stat

  quorum

Enter or exit quorum.

Usage:

ceph quorum enter|exit

  quorum_status

Reports status of monitor quorum.

Usage:

ceph quorum_status

  report

Reports full status of cluster, optional title tag strings.

Usage:

ceph report {<tags> [<tags>...]}

  scrub

Scrubs the monitor stores.

Usage:

ceph scrub

  status

Shows cluster status.

Usage:

ceph status

  sync force

Forces sync of and clear monitor store.

Usage:

ceph sync force {--yes-i-really-mean-it} {--i-know-what-i-am-doing}

  tell

Sends a command to a specific daemon.

Usage:

ceph tell <name (type.id)> <args> [<args>...]

  version

Show mon daemon version

Usage:

ceph version

OPTIONS

-i infile
    will specify an input file to be passed along as a payload with the command to the monitor cluster. This is only used for specific monitor commands.

-o outfile
    will write any payload returned by the monitor cluster with its reply to outfile. Only specific monitor commands (e.g. osd getmap) return a payload.

-c ceph.conf, --conf=ceph.conf
    Use ceph.conf configuration file instead of the default /etc/ceph/ceph.conf to determine monitor addresses during startup.

--id CLIENT_ID, --user CLIENT_ID
    Client id for authentication.

--name CLIENT_NAME, -n CLIENT_NAME
    Client name for authentication.

--cluster CLUSTER
    Name of the Ceph cluster.

--admin-daemon ADMIN_SOCKET
    Submit admin-socket commands.

--admin-socket ADMIN_SOCKET_NOPE
    You probably mean --admin-daemon

-s, --status
    Show cluster status.

-w, --watch
    Watch live cluster changes.

--watch-debug
    Watch debug events.

--watch-info
    Watch info events.

--watch-sec
    Watch security events.

--watch-warn
    Watch warning events.

--watch-error
    Watch error events.

--version, -v
    Display version.

--verbose
    Make verbose.

--concise
    Make less verbose.

-f {json,json-pretty,xml,xml-pretty,plain}, --format
    Format of output.

--connect-timeout CLUSTER_TIMEOUT
    Set a timeout for connecting to the cluster.

AVAILABILITY

ceph is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to the Ceph documentation at http://ceph.com/docs for more information.

SEE ALSO

ceph-mon(8), ceph-osd(8), ceph-mds(8)

COPYRIGHT
2010-2014, Inktank Storage, Inc. and contributors. Licensed under Creative Commons BY-SA