Red Hat Linux 6.2: The Official Red Hat High Availability Server Installation Guide Prev Chapter 7. Failover Services (FOS) Next Additional Information Multiple Clusters While a Piranha FOS cluster can currently only be composed of two nodes, you can create multiple, independent clusters. When doing this, make sure that unique heartbeat_port and VIP addresses are used for each cluster. Further reading More information can be found in the fos, pulse, nanny, and lvs.cf man pages. Prev Home Next Trouble-shooting FOS Up Linux Virtual Server (LVS)