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Appendix E Basic Size and MWC Input Condition for RAID Groups
E.2 Input Conditions for MWC
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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*1: D: Data drives, M: Mirror drives, P: Parity drives
■ Allowed input for MWC when using the default Stripe Depth value (TPP)
High Capacity (RAID5)
2D+1P 1 – 8 (4)
3D+1P 1 – 8 (3)
4D+1P 1 – 8 (2)
5D+1P 1 – 6 (2)
6D+1P 1 – 5 (2)
7D+1P 1 – 4 (2)
8D+1P 1 – 4 (1)
9D+1P 1 – 3 (1)
10D+1P 1 – 3 (1)
11D+1P – 15D+1P 1 – 2 (1)
Reliability (RAID5+0)
(2D+1P) × 24 (fixed)
(3D+1P) × 22 (fixed)
(4D+1P) × 22 (fixed)
(5D+1P) × 2 – (15D+1P) × 21 (fixed)
High Reliability (RAID6)
3D+2P 1 – 8 (3)
4D+2P 1 – 8 (2)
5D+2P 1 – 6 (2)
6D+2P 1 – 5 (2)
7D+2P 1 – 4 (2)
8D+2P 1 – 4 (1)
9D+2P 1 – 3 (1)
10D+2P 1 – 3 (1)
11D+2P – 14D+2P 1 – 2 (1)
RAID type Drive configuration (*1) Allowed input for MWC (initial state)
Stripe Depth = 64KB (default)
RAID type Drive configuration (*1) Allowed input for MWC (initial state)
Stripe Depth = 64KB (default)
Striping (RAID0) 4D 1 – 8 (2)
Mirroring (RAID1) 1D+1M 1 – 16 (8)
High Performance (RAID1+0)
2D+2M 1 – 16 (4)
4D+4M 1 – 8 (2)
8D+8M 1 – 4 (1)
12D+12M 1 – 2 (1)
High Capacity (RAID5)
3D+1P 1 – 8 (3)
4D+1P 1 – 8 (2)
7D+1P 1 – 4 (2)
8D+1P 1 – 4 (1)
12D+1P 1 – 2 (1)