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107 lines
2.8 KiB
Plaintext
107 lines
2.8 KiB
Plaintext
.TH "LVMLOCKCTL" "8" "LVM TOOLS #VERSION#" "Red Hat, Inc" "\""
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.SH NAME
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lvmlockctl \(em Control for lvmlockd
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.SH DESCRIPTION
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This command interacts with
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.BR lvmlockd (8).
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.SH OPTIONS
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lvmlockctl [options]
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.B --help | -h
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Show this help information.
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.B --quit | -q
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Tell lvmlockd to quit.
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.B --info | -i
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Print lock state information from lvmlockd.
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.B --dump | -d
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Print log buffer from lvmlockd.
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.B --wait | -w 0|1
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Wait option for other commands.
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.B --force | -f 0|1
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Force option for other commands.
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.B --kill | -k
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.I vgname
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Kill access to the VG when sanlock cannot renew lease.
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.B --drop | -r
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.I vgname
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Clear locks for the VG when it is unused after kill (-k).
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.B --gl-enable | -E
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.I vgname
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Tell lvmlockd to enable the global lock in a sanlock VG.
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.B --gl-disable | -D
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.I vgname
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Tell lvmlockd to disable the global lock in a sanlock VG.
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.B --stop-lockspaces | -S
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Stop all lockspaces.
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.SH USAGE
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.SS info
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This collects and displays lock state from lvmlockd. The display is
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primitive, incomplete and will change in future version. To print the raw
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lock state from lvmlockd, combine this option with --dump|-d.
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.SS dump
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This collects the circular log buffer of debug statements from lvmlockd
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and prints it.
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.SS kill
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This is run by sanlock when it loses access to the storage holding leases
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for a VG. It runs the command specified in lvm.conf
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lvmlockctl_kill_command to deactivate LVs in the VG. If the specified
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command is successful, locks will be dropped for the VG in lvmlockd
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(the equivalent of lvmlockctl --drop will be run.) If no command
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is specified, or the command fails, then the user must intervene
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to forcefully deactivate LVs in the VG, and if successful, run
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lvmlockctl --drop. For more, see
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.BR lvmlockd (8).
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.SS drop
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This should only be run after a VG has been successfully deactivated
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following an lvmlockctl --kill command. It clears the stale lockspace
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from lvmlockd. When lvmlockctl_kill_command is used, the --kill
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command may run drop automatically. For more, see
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.BR lvmlockd (8).
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.SS gl-enable
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This enables the global lock in a sanlock VG. This is necessary if the VG
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that previously held the global lock is removed. For more, see
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.BR lvmlockd (8).
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.SS gl-disable
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This disables the global lock in a sanlock VG. This is necessary if the
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global lock has mistakenly been enabled in more than one VG. The global
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lock should be disabled in all but one sanlock VG. For more, see
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.BR lvmlockd (8).
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.SS stop-lockspaces
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This tells lvmlockd to stop all lockspaces. It can be useful to stop
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lockspaces for VGs that the vgchange --lock-stop comand can no longer
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see, or to stop the dlm global lockspace which is not directly stopped by
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the vgchange command. The wait and force options can be used with this
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command.
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