This option displays the status of CC-SG disks, including disk size, active and up status, state of the RAID-1, and amount of space currently used by various file systems.
To display disk status of the CC-SG:

Note: The disk drives are fully synchronized, and full RAID-1 protection is available when you see a screen as shown above. The status of both md0 and md1 arrays are [UU]).