Fence Agents for Red Hat Cluster - Fujitsu-Siemens RSB agent

 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_rsb is an I/O Fencing agent which can be used with the Fujitsu-Siemens
 RSB management interface. It logs into device via telnet/ssh and reboots a
 specified outlet. Lengthy telnet/ssh connections should be avoided while a GFS
 cluster is running because the connection will block any necessary fencing
 actions.