It may become necessary to temporarily disable the cluster software on a member system. For example, if a cluster system experiences a hardware failure, an administrator may want to reboot the system, but prevent it from rejoining the cluster to perform maintenance on the system.
Use the /sbin/chkconfig command to stop the member from joining the cluster at boot-up.
/sbin/chkconfig --del clumanager
Once the issues with the disabled cluster member has been resolved, use the following command to allow it to rejoin the cluster:
/sbin/chkconfig --add clumanager
You can then reboot the system for the changes to take effect or run the following command to restart cluster services:
/sbin/service clumanager start