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Appendix F
Basic Size and MWC Input Condition for RAID
Groups
This appendix describes the basic size for each RAID level and the input conditions for the Multi Writeback
Count (MWC) of each RAID group.
F.1 Basic Size for each RAID Group
This section describes the basic size for each RAID level.
The allowed input for the basic size varies depending on the RAID level, the drive configuration, and the Stripe
Depth value.
F.1.1 Basic Size when Using the Default Stripe Depth Value (For Standard, TPV, or
SDPV Type Volumes)
When using the default Stripe Depth value, refer to the following table for basic size:
â– Basic size of each RAID group when using the default Stripe Depth value
RAID level Drive configuration (*1) Basic size (MB) (Lowest exact MB multiple) (*2)
(Stripe Depth = 64KB (default))
Mirroring (RAID1) 1D+1M 1
High Performance
(RAID1+0)
2D+2M 1
3D+3M 3
4D+4M 1
5D+5M 5
6D+6M 3
7D+7M 7
8D+8M 1
9D+9M 9
10D+10M 5
11D+11M 11
12D+12M 3
13D+13M 13
14D+14M 7
15D+15M 15
16D+16M 1
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