The cluster environment provides such a rich resource-sharing
model (which includes files and volumes, disk and tape devices,
and batch and print queues) that it is usually unnecessary to directly
access another cluster node through DECnet software. Nonetheless,
there are situations where resources may not be uniformly shared
across the cluster. This is particularly true in mixed interconnect
or local area cluster configurations, where you may choose to limit
cluster access to a satellite's disk or tape volumes. In such cases,
users need to use the DCL command SET HOST or some form of network
access to access a satellite's resources from other cluster members.
See “Proxy Access Control” for more
information on network access through proxy logins.