VMS Help SHOW, PROCESS, Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 node-name::

    The name of the node on which the specified process is running.

    You must specify a node name on the same OpenVMS Cluster on which
    the current process is running.

 process-name

    The name of the process about which information is to be
    displayed. The process name can have up to 15 alphanumeric
    characters.

    The specified process name must be in the same group as the
    current process. You must use the /IDENTIFICATION qualifier to
    look at processes outside of your group.