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ceph.8
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.\" Man page generated from reStructuredText.
.
.TH "CEPH" "8" "December 18, 2014" "dev" "Ceph"
.SH NAME
ceph \- ceph administration tool
.
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.SH SYNOPSIS
.nf
\fBceph\fP \fBauth\fP \fIadd\fP \fI<entity>\fP {\fI<caps>\fP [\fI<caps>\fP\&...]}
.fi
.sp
.nf
\fBceph\fP \fBauth\fP \fIexport\fP \fI<entity>\fP
.fi
.sp
.nf
\fBceph\fP \fBconfig\-key\fP \fIget\fP \fI<key>\fP
.fi
.sp
.nf
\fBceph\fP \fBmds\fP \fIadd_data_pool\fP \fI<pool>\fP
.fi
.sp
.nf
\fBceph\fP \fBmds\fP \fIgetmap\fP {\fI<int[0\-]>\fP}
.fi
.sp
.nf
\fBceph\fP \fBmon\fP \fIadd\fP \fI<name>\fP <\fIIPaddr[:port]\fP>
.fi
.sp
.nf
\fBceph\fP \fBmon_status\fP
.fi
.sp
.nf
\fBceph\fP \fBosd\fP \fIcreate\fP {\fI<uuid>\fP}
.fi
.sp
.nf
\fBceph\fP \fBosd\fP \fBcrush\fP \fIadd\fP \fI<osdname (id|osd.id)>\fP
.fi
.sp
.sp
\fI<float[0.0\-]>\fP \fI<args>\fP [\fI<args>\fP\&...]
.nf
\fBceph\fP \fBpg\fP \fIforce_create_pg\fP \fI<pgid>\fP
.fi
.sp
.nf
\fBceph\fP \fBpg\fP \fIstat\fP
.fi
.sp
.nf
\fBceph\fP \fBquorum_status\fP
.fi
.sp
.SH DESCRIPTION
.sp
\fBceph\fP 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.
.SH COMMANDS
.SS auth
.sp
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.
.sp
Subcommand \fBadd\fP 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.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth add <entity> {<caps> [<caps>...]}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBcaps\fP updates caps for \fBname\fP from caps specified in the command.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth caps <entity> <caps> [<caps>...]
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBdel\fP deletes all caps for \fBname\fP\&.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth del <entity>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBexport\fP writes keyring for requested entity, or master keyring if
none given.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth export {<entity>}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBget\fP writes keyring file with requested key.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth get <entity>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBget\-key\fP displays requested key.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth get\-key <entity>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBget\-or\-create\fP 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.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth get\-or\-create <entity> {<caps> [<caps>...]}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBget\-or\-create\-key\fP gets or adds key for \fBname\fP from system/caps
pairs specified in the command. If key already exists, any given caps must match
the existing caps for that key.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth get\-or\-create\-key <entity> {<caps> [<caps>...]}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBimport\fP reads keyring from input file.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth import
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBlist\fP lists authentication state.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth list
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBprint\-key\fP displays requested key.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth print\-key <entity>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBprint_key\fP displays requested key.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph auth print_key <entity>
.ft P
.fi
.UNINDENT
.UNINDENT
.SS compact
.sp
Causes compaction of monitor\(aqs leveldb storage.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph compact
.ft P
.fi
.UNINDENT
.UNINDENT
.SS config\-key
.sp
Manage configuration key. It uses some additional subcommands.
.sp
Subcommand \fBget\fP gets the configuration key.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph config\-key get <key>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBput\fP puts configuration key and values.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph config\-key put <key> {<val>}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBexists\fP checks for configuration keys existence.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph config\-key exists <key>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBlist\fP lists configuration keys.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph config\-key list
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBdel\fP deletes configuration key.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph config\-key del <key>
.ft P
.fi
.UNINDENT
.UNINDENT
.SS df
.sp
Show cluster\(aqs free space status.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph df
.ft P
.fi
.UNINDENT
.UNINDENT
.SS fsid
.sp
Show cluster\(aqs FSID/UUID.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph fsid
.ft P
.fi
.UNINDENT
.UNINDENT
.SS health
.sp
Show cluster\(aqs health.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph health
.ft P
.fi
.UNINDENT
.UNINDENT
.SS heap
.sp
Show heap usage info (available only if compiled with tcmalloc)
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph heap dump|start_profiler|stop_profiler|release|stats
.ft P
.fi
.UNINDENT
.UNINDENT
.SS injectargs
.sp
Inject configuration arguments into monitor.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph injectargs <injected_args> [<injected_args>...]
.ft P
.fi
.UNINDENT
.UNINDENT
.SS log
.sp
Log supplied text to the monitor log.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph log <logtext> [<logtext>...]
.ft P
.fi
.UNINDENT
.UNINDENT
.SS mds
.sp
Manage metadata server configuration and administration. It uses some
additional subcommands.
.sp
Subcommand \fBadd_data_pool\fP adds data pool.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds add_data_pool <pool>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBcluster_down\fP takes mds cluster down.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds cluster_down
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBcluster_up\fP brings mds cluster up.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds cluster_up
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBcompat\fP manages compatible features. It uses some additional
subcommands.
.sp
Subcommand \fBrm_compat\fP removes compatible feature.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds compat rm_compat <int[0\-]>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBrm_incompat\fP removes incompatible feature.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds compat rm_incompat <int[0\-]>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBshow\fP shows mds compatibility settings.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds compat show
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBdeactivate\fP stops mds.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds deactivate <who>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBdump\fP dumps information, optionally from epoch.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds dump {<int[0\-]>}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBfail\fP forces mds to status fail.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds fail <who>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBgetmap\fP gets MDS map, optionally from epoch.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds getmap {<int[0\-]>}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBnewfs\fP makes new filesystem using pools <metadata> and <data>.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds newfs <int[0\-]> <int[0\-]> {\-\-yes\-i\-really\-mean\-it}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBremove_data_pool\fP removes data pool.
.sp
Usage:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
ceph mds remove_data_pool <pool>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Subcommand \fBrm\fP removes inactive mds.
.sp
Usage:
.INDENT 0.0
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.nf
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ceph mds rm <int[0\-]> <name> (type.id)>
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.fi
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Subcommand \fBrmfailed\fP removes failed mds.
.sp
Usage:
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.nf
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ceph mds rmfailed <int[0\-]>
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.fi
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Subcommand \fBset_max_mds\fP sets max MDS index.
.sp
Usage:
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.nf
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ceph mds set_max_mds <int[0\-]>
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.fi
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Subcommand \fBset_state\fP sets mds state of <gid> to <numeric\-state>.
.sp
Usage:
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.nf
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ceph mds set_state <int[0\-]> <int[0\-20]>
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.fi
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Subcommand \fBsetmap\fP sets mds map; must supply correct epoch number.
.sp
Usage:
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.nf
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ceph mds setmap <int[0\-]>
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.fi
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Subcommand \fBstat\fP shows MDS status.
.sp
Usage:
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.nf
.ft C
ceph mds stat
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.fi
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Subcommand \fBstop\fP stops mds.
.sp
Usage:
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.nf
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ceph mds stop <who>
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Subcommand \fBtell\fP sends command to particular mds.
.sp
Usage:
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.nf
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ceph mds tell <who> <args> [<args>...]
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.fi
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.SS mon
.sp
Manage monitor configuration and administration. It uses some additional
subcommands.
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Subcommand \fBadd\fP adds new monitor named <name> at <addr>.
.sp
Usage:
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.nf
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ceph mon add <name> <IPaddr[:port]>
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.fi
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Subcommand \fBdump\fP dumps formatted monmap (optionally from epoch)
.sp
Usage:
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.nf
.ft C
ceph mon dump {<int[0\-]>}
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.fi
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Subcommand \fBgetmap\fP gets monmap.
.sp
Usage:
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.nf
.ft C
ceph mon getmap {<int[0\-]>}
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.fi
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Subcommand \fBremove\fP removes monitor named <name>.
.sp
Usage:
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.nf
.ft C
ceph mon remove <name>
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.fi
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Subcommand \fBstat\fP summarizes monitor status.
.sp
Usage:
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.nf
.ft C
ceph mon stat
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.fi
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Subcommand \fBmon_status\fP reports status of monitors.
.sp
Usage:
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.nf
.ft C
ceph mon_status
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.fi
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.SS osd
.sp
Manage OSD configuration and administration. It uses some additional
subcommands.
.sp
Subcommand \fBcreate\fP creates new osd (with optional UUID).
.sp
Usage:
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.nf
.ft C
ceph osd create {<uuid>}
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.fi
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Subcommand \fBcrush\fP is used for CRUSH management. It uses some additional
subcommands.
.sp
Subcommand \fBadd\fP adds or updates crushmap position and weight for <name> with
<weight> and location <args>.
.sp
Usage:
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.nf
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ceph osd crush add <osdname (id|osd.id)> <float[0.0\-]> <args> [<args>...]
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Subcommand \fBadd\-bucket\fP adds no\-parent (probably root) crush bucket <name> of
type <type>.
.sp
Usage:
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.nf
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ceph osd crush add\-bucket <name> <type>
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.fi
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Subcommand \fBcreate\-or\-move\fP creates entry or moves existing entry for <name>
<weight> at/to location <args>.
.sp
Usage:
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.nf
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ceph osd crush create\-or\-move <osdname (id|osd.id)> <float[0.0\-]> <args>
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[<args>...]
.sp
Subcommand \fBdump\fP dumps crush map.
.sp
Usage:
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.nf
.ft C
ceph osd crush dump
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.fi
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Subcommand \fBlink\fP links existing entry for <name> under location <args>.
.sp
Usage:
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.nf
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ceph osd crush link <name> <args> [<args>...]
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.fi
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Subcommand \fBmove\fP moves existing entry for <name> to location <args>.
.sp
Usage:
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.nf
.ft C
ceph osd crush move <name> <args> [<args>...]
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.fi
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Subcommand \fBremove\fP removes <name> from crush map (everywhere, or just at
<ancestor>).
.sp
Usage:
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.nf
.ft C
ceph osd crush remove <name> {<ancestor>}
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.fi
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Subcommand \fBreweight\fP change <name>\(aqs weight to <weight> in crush map.
.sp
Usage:
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.nf
.ft C
ceph osd crush reweight <name> <float[0.0\-]>
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.fi
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.UNINDENT
.sp
Subcommand \fBrm\fP removes <name> from crush map (everywhere, or just at
<ancestor>).
.sp
Usage:
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.sp
.nf
.ft C
ceph osd crush rm <name> {<ancestor>}
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