Everything depends of the type of cluster that you want to create. You can use Red Hat Cluster Suite for failover and load balance clusters. Is a separate software required. You can also use Red Hat GFS to allow the simultaneous access to a shared storage by more than one node. This requires a shared storage. Before acquiring the software, ensure that you have all hardware required, like fence devices, Ethernet, shared storage, device namiing, etc. See the Red Hat Cluster Suite manual.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
