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

    (Alpha only) DEVICE_NAMING is a bit mask indicating whether port
    allocation classes are used in forming SCSI device names.

    Following is the bit definition:

    Bit   Definition

    0     If 1, enable new naming.
    1     Must be 0. This bit is reserved for use by Compaq.

    For more information about port allocation classes, see OpenVMS
    Cluster Systems.