RAID Management
The subsystem can implement several different levels of RAID technology.
RAID levels supported by the subsystem are shown below.
RAID
Level
Description
Min
Drives
0
Block striping is provide, which yields higher performance than with
individual drives. There is no redundancy.
1
1
Drives are paired and mirrored. All data is 100% duplicated on an
equivalent drive. Fully redundant.
2
3
Data is striped across several physical drives. Parity protection is used
for data redundancy.
3
5
Data is striped across several physical drives. Parity protection is used
for data redundancy.
3
6
Data is striped across several physical drives. Parity protection is used
for data redundancy. Requires N+2 drives to implement because of
two-dimensional parity scheme
4
0 + 1
Combination of RAID levels 0 and 1. This level provides striping and
redundancy through mirroring.
4