Release 6.0
306
User Guide
Appendix A Specifications
Specifications of the RAID configurations are shown below.
Table A-2: Specifications - RAID Configurations
RAID type
RAID components
Number of disk drives
Storage efficiency
RAID-10
(1D+1D)× n
2 or more
50%
RAID-50
(2D+P)× n
3 or more
66%
(4D+P)× n
5 or more
80%
(8D+P)× n
9 or more
88%
RAID-60
(4D+PQ)× n
6 or more
66%
(8D+PQ)× n
10 or more
80%
RAID-TM
1D+1D+1D
3
33%
It is recommended that you use disk drives of the same capacity and rotational frequency for
RAID systems.
D refers to data disk; P and Q refer to parity disks.
n is an integer greater than 1.
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