If your cluster contains only two nodes, NetApp recommends that you enable high availability (HA) for it by using the cluster ha modify command. If the cluster contains three or more nodes, you do not specifically need to enable HA mode in the cluster. In a two-node cluster with HA enabled, epsilon is shared between the two nodes so that the failure of one node does not disable the cluster.

The following example enables high availability in a two-node cluster:

node::> cluster ha modify -configured true