/sys$common/syshlp/helplib.hlb SHOW, SYSTEM, Qualifiers, /NODE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

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

    Displays all the processes on the specified node or nodes. If
    you enter the /NODE qualifier without a value, the qualifier
    displays all the processes on the local node of an OpenVMS
    Cluster environment.