The Nodes object represents the nodes of a cluster. A node is a single processing unit within a SVC cluster. Each pair of nodes is known as an input/output (I/O) group. Each node must be in only one I/O group. A single node in the cluster manages configuration activity. This configuration node manages a cache of the configuration information that describes the cluster configuration and provides a focal point for configuration commands. If the configuration node fails, another node in the cluster takes over its responsibilities.
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