Appendix F Basic Size and MWC Input Condition for RAID Groups
F.2 Input Conditions for MWC
ETERNUS Web GUI User’s Guide (Settings)
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*1: D: Data drives, M: Mirror drives, P: Parity drives, HS: Hot Spares
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)x2 4 (fixed)
(3D+1P)x2 2 (fixed)
(4D+1P)x2 2 (fixed)
(5D+1P)x2 – (15D+1P)x2 1 (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)
High Reliability
(RAID6-FR)
(3D+2P)x2+1HS
(3D+2P)x6+1HS
1 - 8 (3)
(4D+2P)x2+1HS
(4D+2P)x5+1HS
1 - 8 (2)
(5D+2P)x4+1HS 1 - 6 (2)
(6D+2P)x2+1HS 1 - 5 (2)
(8D+2P)x3+1HS 1 - 4 (1)
(9D+2P)x2+1HS 1 - 3 (1)
(12D+2P)x2+1HS
(13D+2P)x2+1HS
1 - 2 (1)
RAID level Drive configuration (*1) Allowed input for MWC (initial state)
Stripe Depth = 64KB (default)
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