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https://github.com/ceph/ceph
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142 lines
2.3 KiB
ReStructuredText
142 lines
2.3 KiB
ReStructuredText
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CephFS Administrative commands
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==============================
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Filesystems
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-----------
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These commands operate on the CephFS filesystems in your Ceph cluster.
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Note that by default only one filesystem is permitted: to enable
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creation of multiple filesystems use ``ceph fs flag set enable_multiple true``.
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::
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fs new <filesystem name> <metadata pool name> <data pool name>
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::
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fs ls
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::
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fs rm <filesystem name> [--yes-i-really-mean-it]
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::
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fs reset <filesystem name>
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::
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fs get <filesystem name>
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fs set <filesystem name> <var> <val>
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::
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fs add_data_pool <filesystem name> <pool name/id>
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::
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fs rm_data_pool <filesystem name> <pool name/id>
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Daemons
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-------
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These commands act on specific mds daemons or ranks.
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::
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mds fail <gid/name/role
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This command deactivates an MDS causing it to flush its entire journal to
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backing RADOS objects and close all open client sessions. Deactivating an MDS
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is primarily intended for bringing down a rank after reducing the number of
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active MDS (max_mds).
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::
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mds deactivate <role>
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::
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tell mds.<daemon name>
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mds metadata <gid/name/role>
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mds repaired <role>
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Global settings
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---------------
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::
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fs dump
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::
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fs flag set <flag name> <flag val> [<confirmation string>]
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"flag name" must be one of ['enable_multiple']
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Some flags require you to confirm your intentions with "--yes-i-really-mean-it"
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or a similar string they will prompt you with. Consider these actions carefully
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before proceeding; they are placed on especially dangerous activities.
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Advanced
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--------
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These commands are not required in normal operation, and exist
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for use in exceptional circumstances. Incorrect use of these
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commands may cause serious problems, such as an inaccessible
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filesystem.
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::
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mds compat rm_compat
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::
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mds compat rm_incompat
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::
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mds compat show
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mds getmap
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mds set_state
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::
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mds rmfailed
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Legacy
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------
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::
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mds stat
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mds dump # replaced by "fs get"
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mds stop # replaced by "mds deactivate"
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mds set_max_mds # replaced by "fs set max_mds"
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mds set # replaced by "fs set"
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mds cluster_down # replaced by "fs set cluster_down"
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mds cluster_up # replaced by "fs set cluster_up"
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mds newfs # replaced by "fs new"
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mds add_data_pool # replaced by "fs add_data_pool"
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mds remove_data_pool #replaced by "fs remove_data_pool"
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