Description

   You can check the logical volume name of a mounted device by
   issuing a command in the following format:

    $ WRITE SYS$OUTPUT F$GETDVI("device","LOGVOLNAM")

   When you use the SET VOLUME command to change the volume label
   of a nonsystem device that contains installed products, you
   must also use the PRODUCT REGISTER VOLUME command to update the
   product database with this information. Register the new volume
   label after you dismount and remount the volume so that the new
   logical volume name (DISK$labelname) is defined.

   If you change the volume label of the system device, you do not
   need to use the PRODUCT REGISTER VOLUME command because PCSI
   automatically detects the change after the volume is remounted
   following a system reboot.