Internal network failover

You can configure an internal switch as a failover network to provide redundancy for intra-cluster communications.

In order to support an internal failover network, the int-a port on each node in the cluster must be physically connected to one of the Infiniband switches, and the int-b port on each node must be connected to the other Infiniband switch.

After the ports are connected, you must configure two IP address ranges; an address range to support the int-b internal interfaces, and an address range to support failover. The failover addresses enable seamless failover in the event that either the int-a or int-b switches fail.