Input Conditions For Mwc; Allowed Input For Mwc When Using The Default Stripe Depth Value - Fujitsu ETERNUS DX60 S3 User Manual

Appendix F Basic Size and MWC Input Condition for RAID Groups
F.2 Input Conditions for MWC
F.2

Input Conditions for MWC

This section describes the allowed input values for the Multi Writeback Count (MWC).
The allowed input for MWC varies depending on the RAID level, the drive configuration, and the Stripe Depth
value.
F.2.1

Allowed Input for MWC When Using the Default Stripe Depth Value

When using the default Stripe Depth value, refer to the following table for the allowed MWC value:
■ Allowed input for MWC when using the default Stripe Depth value (Volume)
RAID level
Striping (RAID0)
Mirroring (RAID1)
High Performance (RAID1+0)
Drive configuration (*1)
2D
3D
4D
5D
6D
7D
8D
9D
10D
11D – 16D
1D+1M
2D+2M
3D+3M
4D+4M
5D+5M
6D+6M
7D+7M
8D+8M
9D+9M
10D+10M
11D+11M – 16D+16M
1066
ETERNUS Web GUI User's Guide (Settings)
Copyright 2015 FUJITSU LIMITED
Allowed input for MWC (initial state)
Stripe Depth = 64KB (default)
1 – 16 (4)
1 – 10 (3)
1 – 8 (2)
1 – 6 (2)
1 – 5 (2)
1 – 4 (2)
1 – 4 (1)
1 – 3 (1)
1 – 3 (1)
1 – 2 (1)
1 – 16 (8)
1 – 16 (4)
1 – 10 (3)
1 – 8 (2)
1 – 6 (2)
1 – 5 (2)
1 – 4 (2)
1 – 4 (1)
1 – 3 (1)
1 – 3 (1)
1 – 2 (1)
P2X0-1270-13ENZ0