Hi Cluster Team,
I have configured a 2 node cluster (RHEL5). When I am shutting down the cluster, I am stopping “rgmanager’ service first and then “cman’ service.
But cman service is failing to stop and flashing the following error message.
[root m1045 panigrsk]# service cman stop
Stopping fencing... done
Stopping cman... failed
/usr/sbin/cman_tool: Error leaving cluster: Device or resource busy
‘cman_tool” is showing “dlm” service is still running.
[root m1045 panigrsk]# cman_tool services
type level name id state
dlm 1 rgmanager 00020001 none
Please help me, How to stop dlm service.