Appendix D Notes on Use for Data Replication
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Table D-1 shows RAID configurations recommended if you want to get logical disks to have the same
capacity when using DataReplication.
Table D-1 Recommended Combinations of RAID Configurations
RV
MV
RAID1
(1+1)*1
RAID5
(4+P)*1
RAID5
(6+P)*1
RAID5
(8+P) *1
RAID5
(2+P)*2
RAID1(1+1) ~ ~ − ~ ~
RAID5(4+P) *1 ~ ~ − ~ ~
RAID5(6+P) − − ~ − −
RAID5(8+P) ~ ~ − ~ ~
RAID5(2+P) *2 ~ ~ − ~ ~
*1: Can be specified through both Batch Setting and Individual Setting.
*2: Can be specified through only Individual Setting.
[How to read the table]
The table shows RAID configurations in which RV having the same capacity as for MV can be
bound. The symbols in the table are as follows:
~: RV can be bound.
−: RV (= a logical disk having the same capacity as for MV) may not be bound if the RAID
configurations of RV and MV are different.
[Supplementary information]
If operating logical disks in a configuration other than the above, bind the logical disks in
combination of RAIDs in which RV can be bound. Refer to D.3 “Capacity Except Recommended
RAID Configuration” for details.