USB 3.0-to-SATA II RAID Subsystem
14
User’s Manual
1.3.2 RAID Levels Summary
RAID
Level
No. of
Allowed
Failed
Drives
Description
Min. # of
Drives
0 None
Block striping is provided and yields higher
performance than with individual drives. There
is no redundancy.
2
1 (10)
1 (2)
Drives are paired and mirrored. All data is
100% duplicated on an equivalent drive. Fully
redundant. RAID 1 if use 2 drives; RAID 10 if
use 4 drives.
2
LARGE None
Large is similar to RAID 0 in that it
concatenates the capacity of all member drives.
The data is written linearly starting with the
first disk drive. When first disk drive becomes
full, the next disk drive is used. Large can have
2 or more disk drives. There is no data
redundancy.
1
CLONE
No. of
drives
minus 1
Clone provides multiple copies of data in a disk
drive. Clone can have 2 or more disk drives.
2
3 1
Data is striped across several physical drives.
Parity protection is used for data redundancy.
3
5 1
Data is striped across several physical drives.
Parity protection is used for data redundancy.
3
