VMS Help RUN, Process, Qualifiers, /ON  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /ON=node_name

    Specifies an OpenVMS Cluster node on which a detached process
    is to be created. Quotas are determined by comparing the values
    you specify with the RUN command with the quotas of the creator
    process (maximum) and the PQL_M* system parameters on the target
    node (minimum). To specify quotas outside that range, you must
    have IMPERSONATE or CMKRNL privilege. Omitted quota values
    default to the values of the PQL_D* system parameters on the
    target node.

    The qualifier value node_name is a 1- to 6-character string
    containing the SCS node name of the requested node.

    For example, to create a process named BAR on node FOO that runs
    MY_PROG.EXE, enter the following command:

    $ RUN $10$DKB100:[SMITH]MY_PROG.EXE /DETACH /ON="FOO"/PROCESS_NAME="BAR"

    Note that the disk containing the image must be mounted on the
    specified node. Because the disk might not be mounted on the node
    on which the command is entered, the RUN command processor does
    not check whether the image exists. Consequently, the command
    can complete without error even though the created process aborts
    immediately because the image file cannot be found.