A cluster consists of one or more nodes grouped together as (HA pairs) to form a scalable cluster. Creating a cluster enables the nodes to pool their resources and distribute work across the cluster, while presenting administrators with a single entity to manage. Clustering also enables continuous service to end users if individual nodes go offline.
The total file-system namespace, which comprises all of the volumes and their resultant paths, spans the cluster.
The cluster logical interfaces (LIFs) on each node in the cluster must be on the same subnet.
The existence of the new nodes is transparent to the clients.
This configuration does not require a cluster network, and enables you to use the cluster ports to serve data traffic. However, nondisruptive operations are not supported on single-node clusters.