Manpages - lvmlockctl.8

lvmlockctl — Control for lvmlockd

lvmlockctl [*/options/*]

This command interacts with *lvmlockd*(8).

-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.

–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.

*lvm*(8), *lvmlockd*(8)