DEVICE_NAMING

   (Alpha and Integrity servers) 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 VSI.

   2     If 1, cloned device unit numbers wrap after 9999(not 65472).
  
   3     If 1, cloned device unit numbers wrap after 32767(not 65472).

         Note that even if both bits are zero, device unit numbers will
         wrap after 9999 if "nodename$" is prefixed to the name of the
         device in question (e.g. VMS123$DKA100:); devices whose drivers
         support larger device numbers will wrap after 65472 (or 32767
         if bit 3 is set) only if the nodename is not built into the
         device name.
   
   For more information about port allocation classes, see the VSI
   OpenVMS Cluster Systems manual.