11
(3-3) Supported RAID
The RAID levels D8-3010 supports are as follows:
However, SATA disk drive supports only RAID-5,50, 6 and TM
Besides, RAID can configure only in the same Disk Director (basic Disk Director: 16DE, 192HDD,
Expansion Disk Director: 16DE, 192HDD) of a node.
Pool
RAID type
Number of physical disk
Logical disk capacity
Basic
pool
RAID-1(1+1)
2 drives (1+1)
Physical disk capacity x1/2
RAID-3 4+P
5 drives
Physical
disk
capacity x4/5
8+P 9 drives
Physical
disk
capacity x8/9
RAID-3DP
4+PQ
6 drives
Physical disk capacity x2/3
8+PQ 10 drives
Physical
disk
capacity x4/5
RAID-5 2+P
3,4 drives
Physical disk capacity x2/3
4+P 5,6,7,8
drives
Physical disk capacity x4/5
8+P
9,10,11,12 drives
Physical disk capacity x8/9
RAID-10
(1+1)x2
~
8 4,6,8,10,12,14,16 drives
Physical disk capacity x1/2
RAID-50 (4+P)x2
10 drives
Physical disk capacity x4/5
(4+P)x4 20 drives
Dynamic
pool
RAID-6
*1
4+PQ
6 or more drives
Physical disk capacity x2/3
*3
8+PQ
10 or more drives
Physical disk capacity x4/5
*3
RAID-TM
*1
3 or more drives
Physical disk capacity x1/3
*3
RAID-1
*1*2
2 or more drives
Physical disk capacity x1/2
*3
*1: Can dynamically change LUN capacity by dynamic pool function.
*2: Only SAS disk can be used for Dynamic pool with RAID-1.
*3: Capacity efficiency is constant, regardless of the number of configured drive. Even in
case of adding a disk drive, the capacity efficiency does not change.
The theoretical capacities of dynamic pool are slightly smaller than the above figures.