The status of internal drives. This value is read from the 'diskx' line in the file at /etc/melco/diskinfo. -'notSupport(-1)' means the drive slot does not exist. -'normal(1)' means the drive is being used as a JBOD. -'array1(2)' means the drive is being used as a part of array 1. -'array2(3)' means the drive is being used as a part of array 2. -'standby(4)' means the drive is waiting as a spare drive. -'degrade(5)' means the drive has degraded and has been removed from the array. -'remove(6)' means the drive has been dismounted by a user. -'standbyRemoved(7)' means the drive is configured as a spare drive and disconnected from the TeraStation. -'degradeRemoved(8)' means the drive has degraded, and has been removed from the array and disconnected from the TeraStation. -'removeRemoved(9)' means the drive has been dismounted by a user and is disconnected from the TeraStation. -'array3(10)' means the drive is being used as a part of array 3. -'array4(11)' means the drive is being used as a part of array 4. -'mediaCartridge(12)' means the drive is configured as a media cartridge. -'array5(13)' means the drive is being used as a part of array 5. -'array6(14)' means the drive is being used as a part of array 6.