Provided by: ceph-common_10.1.2-0ubuntu1_amd64 bug

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 daemon <name> | <path> <command> ...

       ceph daemonperf <name> | <path> [ interval [ count ] ]

       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 | 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 | 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>}

   daemon
       Submit admin-socket commands.

       Usage:

          ceph daemon {daemon_name|socket_path} {command} ...

       Example:

          ceph daemon osd.0 help

   daemonperf
       Watch performance counters from a Ceph daemon.

       Usage:

          ceph daemonperf {daemon_name|socket_path} [{interval} [{count}]]

   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 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 and ID).

       Usage:

          ceph osd create {<uuid>} {<id>}

       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 tree shows the crush buckets and items in a tree view.

       Usage:

          ceph osd crush tree

       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-]} (default all)

       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_dirty_high_ratio|
          cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|
          min_read_recency_for_promote|hit_set_grade_decay_rate|hit_set_search_last_n

       Only for erasure coded pools:

          ceph osd pool get <poolname> erasure_code_profile

       Use all to get all pool parameters that apply to the pool's type:

          ceph osd pool get <poolname> all

       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_dirty_high_ratio|
          cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|auid|
          min_read_recency_for_promote|write_fadvise_dontneed|hit_set_grade_decay_rate|
          hit_set_search_last_n
          <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...]}
          {--no-increasing}

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

       Usage:

          ceph osd reweight-by-utilization {<int[100-]>}
          {--no-increasing}

       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 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, daemon DAEMON_NAME
              Submit admin-socket commands via admin sockets in /var/run/ceph.

       --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