This screen provides an online view of the storage-area
    device information local to a particular database. The Device
    Information screen has the following capabilities:

    o  Displays real-time information about all devices accessed by
       the database.

    o  Displays information for devices on which the database root
       file and storage areas (live and snapshot) reside.

    o  Displays information about all database root files and storage
       areas except for AIJ, ACE, or RUJ devices.

    When there is more than one page of the Device Information
    screen, the header section contains the page number currently
    displayed and the total number of pages in the screen. Use the
    left angle bracket (<) key to go to the previous page and the
    right angle bracket (>) key to go to the next page of the screen.

    The Device Information screen contains the following information:

    o  Device.Name- The name of the device.

    o  Status- Any of the following status types might be displayed
       in this column:

          Mounted-Device is mounted and active
          Valid-Device is software valid
          Busy-Device is busy
          MntVrfy-Device is undergoing Mount Verification
          TimeOut-Device has timed out
          PowerFl-Device has experienced power failure
          Unknown-Device is in some unexpected state

    o  #Err- The number of hardware errors that have occurred on the
       device since it was mounted.

    o  Volume.Label- The name of the device specified when it was
       mounted.

    o  FreeBlock- The number of free (available) blocks on the
       device. This number approaches zero (0) as the device becomes
       full. This is one of the most important field in the screen.

    o  Max#Blocks- The total number of blocks in the device.

    o  %Full- The percentage of the disk that is full.

    Note that the Device Information screen is available in replay
    mode only if By Area information was recorded in the binary
    output file. However, because the information is displayed
    in real time, it does not reflect the time when the By Area
    information was recorded.