OS Manuals

/usr/bin/monmaptool

Shared filesystem layout and plugins used by every Ceph daemon

From ceph-fips-19-base 19.2.7-r4 (enterprise-packages), captured 2026-11-08 by running monmaptool --help (exit 0). permalink

usage: monmaptool [--print] [--create [--clobber] [--fsid uuid]]
        [--enable-all-features]
        [--generate] [--set-initial-members]
        [--add name 1.2.3.4:567] [--rm name]
        [--addv name [v2:1.2.4.5:567,v1:1.2.3.4:568]]
        [--feature-list [plain|parseable]]
        [--feature-set <value> [--optional|--persistent]]
        [--feature-unset <value> [--optional|--persistent]]
        [--set-min-mon-release <release-major-number>]
        [--auth-service-cipher <cipher>]
        [--auth-allowed-ciphers <cipher1,cipher2,...>]
        [--auth-preferred-cipher <cipher>]
        <mapfilename>
Options (14)
OptionDescriptionSource
--printprint a plaintext dump of the map, after any modifications are made.man
--createcreate a new monitor map with a new UUID (and with it, a new, empty Ceph cluster).man
--clobberallow monmaptool to create a new mapfilename in place of an existing map.man
--generategenerate a new monmap based on the values on the command line or specified in the ceph configuration.man
--monmap filename2.man
--mon-host 'host13.man
--filter-initial-membersfilter the initial monmap by applying the mon initial members setting.man
--rm nameremove the monitor with the specified name from the map.man
--fsid uuidset the fsid to the given uuid.man
--enable-all-featuresenable all supported features.man
--set-min-mon-release releaseset the min_mon_release.man
--auth-service-cipher cipherset the cipher type for rotating service keys.man
--auth-allowed-ciphers cipher1set the cipher types permitted for authentication by daemons (including Monitors) or clients.man
--auth-preferred-cipher cipherset the preferred cipher key type for new credentials or for key rotations.man
Examples (3) from the manual page, untested

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.