A node is a controller in a cluster. You can display information about a node, set node attributes, rename a node, add or remove a node, or start or stop a node. You can also manage a node remotely by using the Service Processor (SP).
A node is connected to other nodes in the cluster over a cluster network. It is also connected to the disk shelves that provide physical storage for the Data ONTAP system or to storage arrays that provide array LUNs for Data ONTAP use. Services and components that are controlled by the node, not by the cluster, can be managed by using the system node commands.
A node SVM represents a node in the cluster. If you run the vserver show command, the output includes node SVMs in the list.