Raid Levels Summary - i-Stor iS05AAUW8 User Manual

USB 3.0-to-SATA II RAID Subsystem

1.3.2 RAID Levels Summary

No. of
RAID Allowed
Level Failed
Drives
0 None
1 (10) 1 (2)
LARGE None
No. of
CLONE drives
minus 1
3 1
5 1
14 User's Manual
Description
Block striping is provided and yields higher
performance than with individual drives. There
is no redundancy.
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.
Large is similar
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.
Clone provides multiple copies of data in a disk
drive. Clone can have 2 or more disk drives.
Data is striped across several physical drives.
Parity protection is used for data redundancy.
Data is striped across several physical drives.
Parity protection is used for data redundancy.
to RAID 0 in
Min. # of
Drives
2
2
that it
1
2
3
3