ICY DOCK MB662US-2S - Manual (Page 6)

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2. BIG (Concatenation): The two physical drives are combined so that one single yet
larger logical volume mounts on the desktop, offering maximum possible capacity (the
available capacities of each disk are combined).
Note: If one physical disk fails, the data on both disks will become inaccessible. If you
are concerned about data security, we highly recommend using Safe configuration (RAID 1
mode). Please see section 6.1-4 for more information.
3. Fast (RAID 0 Mode): The two physical drives are stripped together so that one larger
logical volume mounts on the desktop, offering the maximum possible capacity like in Big
mode (the available capacities of each disk are combined) yet with greater speed than the
Big mode (the speed of each disk runs faster to a certain level).
Note: If one drive fails, the data on both disks will become inaccessible.
4. Safe (RAID 1 Mode): The two physical drives are “mirrored” (RAID 1) so that
one single logical volume mounts on the desktop. All of the data on one drive will be
recoverable from the other drive (the available capacity of one drive cannot exceed the
available capacity of the other drive).
Note: If one physical disk fails, the data can be immediately recovered from the second
disk. No data will be lost if one drive fails.
5. Safe33 (MB662US-2S only): RAID 1 (SAFE 33%) + (BIG 67%), 33% of memory space
on both hard drives will be operating under RAID 1 mode, and the rest of the hard drive
memory on both disks will be assorted into BIG.
6. Safe50 (MB662US-2S only):
RAID 1 (SAFE 50%) + (BIG 50%), 50% of the memory
in both disks will be RAID 1, and the rest of the hard drive memory on both disks will be
assorted into BIG.
1. MB662UEAB-2S: Restart the device to reset the RAID Level.
2. MB662US-2S:
Press the Reset button to reset the RAID Level. The LED light will
remain off during the reset process and the blue LED will turn on after the reset is
completed.
6-2. RAID mode switch notification
Caution:
Changing the RAID mode destroys data stored on the MB662 series. If you
have saved data on the drives, back up data before following these steps.