lvmlockctl(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | USAGE | SEE ALSO | COLOPHON

LVMLOCKCTL(8)                                              LVMLOCKCTL(8)

NAME         top

       lvmlockctl — Control for lvmlockd

SYNOPSIS         top

       lvmlockctl [options]

DESCRIPTION         top

       This command interacts with lvmlockd(8).

OPTIONS         top

       -h|--help
              Show this help information.

       -q|--quit
              Tell lvmlockd to quit.

       -i|--info
              Print lock state information from lvmlockd.

       -d|--dump
              Print log buffer from lvmlockd.

       -w|--wait 0|1
              Wait option for other commands.

       -f|--force 0|1
              Force option for other commands.

       -k|--kill vgname
              Kill access to the VG when sanlock cannot renew lease.

       -r|--drop vgname
              Clear locks for the VG when it is unused after kill (-k).

       -E|--gl-enable vgname
              Tell lvmlockd to enable the global lock in a sanlock VG.

       -D|--gl-disable vgname
              Tell lvmlockd to disable the global lock in a sanlock VG.

       -S|--stop-lockspaces
              Stop all lockspaces.

USAGE         top

       --info This collects and displays lock state from lvmlockd.  The
              display is primitive, incomplete and will change in future
              version.  To print the raw lock state from lvmlockd,
              combine this option with --dump|-d.

       --dump This collects the circular log buffer of debug statements
              from lvmlockd and prints it.

       --kill This is run by sanlock when it loses access to the storage
              holding leases for a VG.  It runs the command specified in
              lvm.conf lvmlockctl_kill_command to deactivate LVs in the
              VG.  If the specified command is successful, locks will be
              dropped for the VG in lvmlockd (the equivalent of
              lvmlockctl --drop will be run.)  If no command is
              specified, or the command fails, then the user must
              intervene to forcefully deactivate LVs in the VG, and if
              successful, run lvmlockctl --drop.  For more, see
              lvmlockd(8).

       --drop This should only be run after a VG has been successfully
              deactivated following an lvmlockctl --kill command.  It
              clears the stale lockspace from lvmlockd.  When
              lvmlockctl_kill_command is used, the --kill command may
              run drop automatically.  For more, see lvmlockd(8).

       --gl-enable
              This enables the global lock in a sanlock VG.  This is
              necessary if the VG that previously held the global lock
              is removed.  For more, see lvmlockd(8).

       --gl-disable
              This disables the global lock in a sanlock VG.  This is
              necessary if the global lock has mistakenly been enabled
              in more than one VG.  The global lock should be disabled
              in all but one sanlock VG.  For more, see lvmlockd(8).

       --stop-lockspaces
              This tells lvmlockd to stop all lockspaces.  It can be
              useful to stop lockspaces for VGs that the vgchange
              --lock-stop command can no longer see, or to stop the dlm
              global lockspace which is not directly stopped by the
              vgchange command.  The wait and force options can be used
              with this command.

SEE ALSO         top

       lvm(8), lvmlockd(8)

COLOPHON         top

       This page is part of the lvm2 (Logical Volume Manager 2) project.
       Information about the project can be found at 
       ⟨http://www.sourceware.org/lvm2/⟩.  If you have a bug report for
       this manual page, see ⟨https://github.com/lvmteam/lvm2/issues⟩.
       This page was obtained from the tarball
       https://github.com/lvmteam/lvm2/archive/refs/tags/v2_03_13.tar.gz
       fetched from ⟨https://github.com/lvmteam/lvm2/releases⟩ on
       2021-08-27.  If you discover any rendering problems in this HTML
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       part of the original manual page), send a mail to
       man-pages@man7.org

Red Hat, Inc        LVM TOOLS 2.03.13(2) (2021-08-11)      LVMLOCKCTL(8)

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