About campus clusters

A campus cluster is a single cluster that stretches over two sites using fiber channel connectivity, with SAN connections for data mirroring and network connections for cluster communication. Although two sites are the most common, more than two can be used for additional redundancy.

Campus clusters provide disaster protection when an entire site goes down by locating the clustered servers in different buildings or areas. This solution provides a level of high availability that is above mirroring or clustering at a single site and is an alternative to using replication software.