2 CephFS Administrative commands
3 ==============================
8 These commands operate on the CephFS filesystems in your Ceph cluster.
9 Note that by default only one filesystem is permitted: to enable
10 creation of multiple filesystems use ``ceph fs flag set enable_multiple true``.
14 fs new <filesystem name> <metadata pool name> <data pool name>
22 fs rm <filesystem name> [--yes-i-really-mean-it]
26 fs reset <filesystem name>
30 fs get <filesystem name>
34 fs set <filesystem name> <var> <val>
38 fs add_data_pool <filesystem name> <pool name/id>
42 fs rm_data_pool <filesystem name> <pool name/id>
48 These commands act on specific mds daemons or ranks.
52 mds fail <gid/name/role
54 This command deactivates an MDS causing it to flush its entire journal to
55 backing RADOS objects and close all open client sessions. Deactivating an MDS
56 is primarily intended for bringing down a rank after reducing the number of
65 tell mds.<daemon name>
69 mds metadata <gid/name/role>
85 fs flag set <flag name> <flag val> [<confirmation string>]
87 "flag name" must be one of ['enable_multiple']
89 Some flags require you to confirm your intentions with "--yes-i-really-mean-it"
90 or a similar string they will prompt you with. Consider these actions carefully
91 before proceeding; they are placed on especially dangerous activities.
97 These commands are not required in normal operation, and exist
98 for use in exceptional circumstances. Incorrect use of these
99 commands may cause serious problems, such as an inaccessible
108 mds compat rm_incompat
132 mds dump # replaced by "fs get"
133 mds stop # replaced by "mds deactivate"
134 mds set_max_mds # replaced by "fs set max_mds"
135 mds set # replaced by "fs set"
136 mds cluster_down # replaced by "fs set cluster_down"
137 mds cluster_up # replaced by "fs set cluster_up"
138 mds newfs # replaced by "fs new"
139 mds add_data_pool # replaced by "fs add_data_pool"
140 mds remove_data_pool #replaced by "fs remove_data_pool"