Red Hat Fence Agents is a collection of scripts to handle remote power management for several devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster.

fence_bladecenter is an I/O Fencing agent which can be used with IBM BladeCenters with recent enough firmware that includes telnet support. It logs into a Brocade chasis via telnet or ssh and uses the command line interface to power on and off blades.