Fence Agents for Red Hat Cluster - HP Brocade 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_brocade is an I/O Fencing agent which can be used with Brocade FC
 switches. It logs into a Brocade switch via telnet and disables a specified
 port. Disabling the port which a machine is connected to effectively fences
 that machine. Lengthy telnet connections to the switch should be avoided while
 a GFS cluster is running because the connection will block any necessary
 fencing actions.