The DECRAM SHOW DISK command shows the following information about
    the specified memory disk. Note that if the disk-device parameter
    is not specified it will return a brief status on all disks in the
    recovery file.

    o  Its disk name; this is the name you specified on the DECRAM
       CREATE DISK command line.

    o  Its capacity in blocks.

    o  Its current volume label (if available).

    o  Local or Shared memory.

    o  Its persist, serve, and writebuffered status.