VMS Help SET, SERVER, Qualifiers, /NODE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /NODE=(node-name[,...])

    Issues the SET command to the registry servers on the specified
    nodes in the order they are entered. The node names must be
    within the current cluster.

    Cannot be used with the /CLUSTER or /MASTER qualifiers.