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CEPH(8) Ceph 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 [ rm | exists | get | ls | dump | set ] ... 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 | get_release_rate | set_release_rate | stats ] ... ceph injectargs _injectedargs_ [ _injectedargs_... ] ceph log _logtext_ [ _logtext_... ] ceph mds [ compat | fail | rm | rmfailed | set_state | stat | repaired ] ... ceph mon [ add | dump | getmap | remove | stat ] ... ceph mon_status ceph osd [ blacklist | blocked-by | create | new | deep-scrub | df | down | dump | erasure-code-profile | find | getcrushmap | getmap | getmaxosd | in | ls | lspools | map | metadata | ok-to-stop | out | pause | perf | pg-temp | force-create-pg | primary-affinity | primary-temp | repair | reweight | reweight-by-pg | rm | destroy | purge | safe-to-destroy | scrub | set | setcrushmap | setmaxosd | stat | 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 pool application [ disable | enable | get | rm | set ] ... 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 | getmap | ls | ls-by-osd | ls-by-pool | ls-by-primary | map | repair | scrub | 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)_ _command_ [options...] ceph version DESCRIPTION ceph is a control utility which is used for manual deployment and main- tenance 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 speci- fied in the command. Usage: ceph auth add <entity> {<caps> [<caps>...]} Subcommand caps updates caps for name from caps specified in the com- mand. 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 en- tity 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 ls lists authentication state. Usage: ceph auth ls 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 rm deletes configuration key. Usage: ceph config-key rm <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 ls lists configuration keys. Usage: ceph config-key ls Subcommand dump dumps configuration keys and values. Usage: ceph config-key dump Subcommand set puts configuration key and value. Usage: ceph config-key set <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} features Show the releases and features of all connected daemons and clients connected to the cluster, along with the numbers of them in each bucket grouped by the corresponding features/releases. Each release of Ceph supports a different set of features, expressed by the features bit- mask. New cluster features require that clients support the feature, or else they are not allowed to connect to these new features. As new fea- tures or capabilities are enabled after an upgrade, older clients are prevented from connecting. Usage: ceph features 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 sin- gle-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|stats Subcommand release to make TCMalloc to releases no-longer-used memory back to the kernel at once. Usage: ceph heap release Subcommand (get|set)_release_rate get or set the TCMalloc memory re- lease rate. TCMalloc releases no-longer-used memory back to the kernel gradually. the rate controls how quickly this happens. Increase this setting to make TCMalloc to return unused memory more frequently. 0 means never return memory to system, 1 means wait for 1000 pages after releasing a page to system. It is 1.0 by default.. Usage: ceph heap get_release_rate|set_release_rate {<val>} 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 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 fail forces mds to status fail. Usage: ceph mds fail <role|gid> 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_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 repaired mark a damaged MDS rank as no longer damaged. Usage: ceph mds repaired <role> mon Manage monitor configuration and administration. It uses some addi- tional 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 mgr Ceph manager daemon configuration and management. Subcommand dump dumps the latest MgrMap, which describes the active and standby manager daemons. Usage: ceph mgr dump Subcommand fail will mark a manager daemon as failed, removing it from the manager map. If it is the active manager daemon a standby will take its place. Usage: ceph mgr fail <name> Subcommand module ls will list currently enabled manager modules (plug- ins). Usage: ceph mgr module ls Subcommand module enable will enable a manager module. Available mod- ules are included in MgrMap and visible via mgr dump. Usage: ceph mgr module enable <module> Subcommand module disable will disable an active manager module. Usage: ceph mgr module disable <module> Subcommand metadata will report metadata about all manager daemons or, if the name is specified, a single manager daemon. Usage: ceph mgr metadata [name] Subcommand versions will report a count of running daemon versions. Usage: ceph mgr versions Subcommand count-metadata will report a count of any daemon metadata field. Usage: ceph mgr count-metadata <field> osd Manage OSD configuration and administration. It uses some additional subcommands. Subcommand blacklist manage blacklisted clients. It uses some addi- tional subcommands. Subcommand add add <addr> to blacklist (optionally until <expire> sec- onds 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). This command is DEPRECATED as of the Luminous release, and will be re- moved in a future release. Subcommand new should instead be used. Usage: ceph osd create {<uuid>} {<id>} Subcommand new can be used to create a new OSD or to recreate a previ- ously destroyed OSD with a specific id. The new OSD will have the spec- ified uuid, and the command expects a JSON file containing the base64 cephx key for auth entity client.osd._id_, as well as optional base64 cepx key for dm-crypt lockbox access and a dm-crypt key. Specifying a dm-crypt requires specifying the accompanying lockbox cephx key. Usage: ceph osd new {<uuid>} {<id>} -i {<params.json>} The parameters JSON file is optional but if provided, is expected to maintain a form of the following format: { "cephx_secret": "AQBWtwhZdBO5ExAAIDyjK2Bh16ZXylmzgYYEjg==", "crush_device_class": "myclass" } Or: { "cephx_secret": "AQBWtwhZdBO5ExAAIDyjK2Bh16ZXylmzgYYEjg==", "cephx_lockbox_secret": "AQDNCglZuaeVCRAAYr76PzR1Anh7A0jswkODIQ==", "dmcrypt_key": "<dm-crypt key>", "crush_device_class": "myclass" } Or: { "crush_device_class": "myclass" } The "crush_device_class" property is optional. If specified, it will set the initial CRUSH device class for the new OSD. 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 bucket <srcname> to <dstname> 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 addi- tional 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 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 ok-to-stop checks whether the list of OSD(s) can be stopped without immediately making data unavailable. That is, all data should remain readable and writeable, although data redundancy may be reduced as some PGs may end up in a degraded (but active) state. It will re- turn a success code if it is okay to stop the OSD(s), or an error code and informative message if it is not or if no conclusion can be drawn at the current time. Usage: ceph osd ok-to-stop <id> [<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>...]] (develop- ers only). Usage: ceph osd pg-temp <pgid> {<id> [<id>...]} Subcommand force-create-pg forces creation of pg <pgid>. Usage: ceph osd force-create-pg <pgid> Subcommand pool is used for managing data pools. It uses some addi- tional subcommands. Subcommand create creates pool. Usage: ceph osd pool create <poolname> <int[0-]> {<int[0-]>} {replicated|erasure} {<erasure_code_profile>} {<rule>} {<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|pg_num|pgp_num|crush_rule|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|pg_num| pgp_num|crush_rule|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| 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 application is used for adding an annotation to the given pool. By default, the possible applications are object, block, and file storage (corresponding app-names are "rgw", "rbd", and "cephfs"). How- ever, there might be other applications as well. Based on the applica- tion, there may or may not be some processing conducted. Subcommand disable disables the given application on the given pool. Usage: ceph osd pool application disable <pool-name> <app> {--yes-i-really-mean-it} Subcommand enable adds an annotation to the given pool for the men- tioned application. Usage: ceph osd pool application enable <pool-name> <app> {--yes-i-really-mean-it} Subcommand get displays the value for the given key that is assosciated with the given application of the given pool. Not passing the optional arguments would display all key-value pairs for all applications for all pools. Usage: ceph osd pool application get {<pool-name>} {<app>} {<key>} Subcommand rm removes the key-value pair for the given key in the given application of the given pool. Usage: ceph osd pool application rm <pool-name> <app> <key> Subcommand set assosciates or updates, if it already exists, a key-value pair with the given application for the given pool. Usage: ceph osd pool application set <pool-name> <app> <key> <value> 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 (devel- opers 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 [over- load-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 [over- load-percentage-for-consideration, default 120]. Usage: ceph osd reweight-by-utilization {<int[100-]>} {--no-increasing} Subcommand rm removes osd(s) <id> [<id>...] from the OSD map. Usage: ceph osd rm <ids> [<ids>...] Subcommand destroy marks OSD id as destroyed, removing its cephx en- tity's keys and all of its dm-crypt and daemon-private config key en- tries. This command will not remove the OSD from crush, nor will it remove the OSD from the OSD map. Instead, once the command successfully completes, the OSD will show marked as destroyed. In order to mark an OSD as destroyed, the OSD must first be marked as lost. Usage: ceph osd destroy <id> {--yes-i-really-mean-it} Subcommand purge performs a combination of osd destroy, osd rm and osd crush remove. Usage: ceph osd purge <id> {--yes-i-really-mean-it} Subcommand safe-to-destroy checks whether it is safe to remove or de- stroy an OSD without reducing overall data redundancy or durability. It will return a success code if it is definitely safe, or an error code and informative message if it is not or if no conclusion can be drawn at the current time. Usage: ceph osd safe-to-destroy <id> [<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 set-require-min-compat-client enforces the cluster to be backward compatible with the specified client version. This subcommand prevents you from making any changes (e.g., crush tunables, or using new features) that would violate the current setting. Please note, This subcommand will fail if any connected daemon or client is not compati- ble with the features offered by the given <version>. To see the fea- tures and releases of all clients connected to cluster, please see ceph features. Usage: ceph osd set-require-min-compat-client <version> Subcommand stat prints summary of OSD map. Usage: ceph osd stat 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 ad- ditional 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 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>} {<pg-state> [<pg-state>...]} Subcommand ls-by-osd lists pg on osd [osd] Usage: ceph pg ls-by-osd <osdname (id|osd.id)> {<int>} {<pg-state> [<pg-state>...]} Subcommand ls-by-pool lists pg with pool = [poolname] Usage: ceph pg ls-by-pool <poolstr> {<int>} {<pg-state> [<pg-state>...]} Subcommand ls-by-primary lists pg with primary = [osd] Usage: ceph pg ls-by-primary <osdname (id|osd.id)> {<int>} {<pg-state> [<pg-state>...]} 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 stat shows placement group status. Usage: ceph pg stat quorum Cause MON to enter or exit quorum. Usage: ceph quorum enter|exit Note: this only works on the MON to which the ceph command is con- nected. If you want a specific MON to enter or exit quorum, use this syntax: ceph tell mon.<id> 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)> <command> [options...] List all available commands. Usage: ceph tell <name (type.id)> help 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 spe- cific 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. --setuser user will apply the appropriate user ownership to the file specified by the option '-o'. --setgroup group will apply the appropriate group ownership to the file specified by the option '-o'. -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. --no-increasing --no-increasing is off by default. So increasing the osd weight is allowed using the reweight-by-utilization or test-reweight-by-utilization commands. If this option is used with these commands, it will help not to increase osd weight even the osd is under utilized. --block block until completion (scrub and deep-scrub only) 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 Cre- ative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0) dev Mar 01, 2021 CEPH(8)
NAME | SYNOPSIS | DESCRIPTION | COMMANDS | OPTIONS | AVAILABILITY | SEE ALSO | COPYRIGHT
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