VMS Help CANCEL, 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 cannot specify a node name on a different OpenVMS Cluster
    system from the current process.

 process-name

    The name of the process for which wakeup requests are to be
    canceled. The process name can have up to 15 alphanumeric
    characters.

    The specified process must be in the same group as the current
    process.