/CSID=csid

    Displays only the OpenVMS Cluster system information for a
    specific OpenVMS Cluster member node. The value csid is the
    cluster system identification number (CSID) of the node to be
    displayed. You can find the CSID for a specific node in a cluster
    by examining the CSB list display of the SHOW CLUSTER command.
    Other SDA displays refer to a system's CSID. For instance,
    the SHOW LOCKS command indicates where a lock is mastered or
    held by CSID. This is mutually exclusive with the /ADDRESS=n,
    /CIRCUIT=pb-addr, and /NODE=name qualifiers.