dlm_controld man page

dlm_controld — dlm cluster control daemon


dlm_controld [Options]


The kernel dlm requires a user daemon to manage lockspace membership. dlm_controld manages lockspace membership using corosync cpg groups, and translates membership changes into dlm kernel recovery events. dlm_controld also manages posix locks for cluster file systems using the dlm.


Command line options override a corresponding setting in dlm.conf(5).
For default settings, see dlm_controld -h.

--daemon_debug | -D

enable debugging to stderr and don't fork


don't fork

--log_debug | -K

enable kernel dlm debugging messages

--protocol | -r str

dlm kernel lowcomms protocol: tcp, sctp, detect

--debug_logfile | -L

write debugging to log file

--enable_plock | -p 0|1

enable/disable posix lock support for cluster fs

--plock_debug | -P

enable plock debugging

--plock_rate_limit | -l int

limit rate of plock operations (0 for none)

--plock_ownership | -o 0|1

enable/disable plock ownership

--drop_resources_time | -t int

plock ownership drop resources time (milliseconds)

--drop_resources_count | -c int

plock ownership drop resources count

--drop_resources_age | -a int

plock ownership drop resources age (milliseconds)

--post_join_delay | -j int

seconds to delay fencing after cluster join

--enable_fencing | -f 0|1

enable/disable fencing

--enable_concurrent_fencing 0|1

enable/disable concurrent fencing

--enable_startup_fencing | -s 0|1

enable/disable startup fencing

--enable_quorum_fencing | -q 0|1

enable/disable quorum requirement for fencing

--enable_quorum_lockspace 0|1

enable/disable quorum requirement for lockspace operations

--fence_all str

fence all nodes with this agent


enable unfencing self with fence_all agent

--help | -h

print this help, then exit

--version | -V

Print program version information, then exit

See Also

dlm_tool(8), dlm.conf(5)

Referenced By

dlm.conf(5), dlm_controld_selinux(8), dlm_stonith(8), dlm_tool(8), fence_sanlock(8), gfs2(5).

2012-04-05 dlm