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Introduction
1-9
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
1
3
5
6
0 + 1
Block striping is provide, which 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.
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.
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
Combination of RAID levels 0 and 1. This level provides striping
and redundancy through mirroring.
1
2
3
3
4
4