Fujitsu DX8100 S2 Manual Do Utilizador

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

ETERNUS Web GUI User’s Guide

P2X0-1090-10ENZ0

1009

*1: D: Data

drives,

M: Mirror drives, P: Parity

drives

E.2.2

Allowed Input for the MWC when Performance is Tuned

Refer to the following table for the allowed MWC value when the Stripe Depth value is changed:

■

Allowed Input for MWC when the Stripe Depth value is tuned (Volume)

*1: D: Data

drives,

M: Mirror drives, P: Parity

drives, –

Stripe Depth cannot be changed

High Reliability (RAID6)

4D+2P

1 – 8 (2)

6D+2P

1 –- 5 (2)

8D+2P

1 – 4 (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)

When the Stripe Size is ...

128KB

256KB

512KB

1024KB

Striping (RAID0)

1 – 8 (4)

1 – 4 (4)

1 – 2 (2)

1 (fixed)

1 – 5 (3)

1 – 2 (2)

1 (fixed)

1 – 4 (2)

1 – 2 (2)

1 (fixed)

1 – 3 (2)

1 (fixed)

1 – 2 (2)

1 (fixed)

1 – 2 (2)

1 (fixed)

1 – 2 (1)

1 (fixed)

9D – 16D

1 (fixed)

High Performance
(RAID1+0)

2D+2M

1 – 8 (4)

1 – 4 (4)

1 – 2 (2)

1 (fixed)

3D+3M

1 – 5 (3)

1 – 2 (2)

1 (fixed)

4D+4M

1 – 4 (2)

1 – 2 (2)

1 (fixed)

5D+5M

1 – 3 (2)

1 (fixed)

6D+6M

1 – 2 (2)

1 (fixed)

7D+7M

1 – 2 (2)

1 (fixed)

8D+8M

1 – 2 (1)

1 (fixed)

9D+9M – 16D+16M

1 (fixed)

High Capacity (RAID5)

2D+1P

1 – 4 (4)

1 – 2 (2)

1 (fixed)

–

3D+1P

1 – 4 (3)

1 – 2 (2)

1 (fixed)

–

4D+1P

1 – 4 (2)

1 – 2 (2)

1 (fixed)

–

5D+1P

1 – 3 (2)

1 (fixed)

–

6D+1P

1 – 2 (2)

1 (fixed)

–

7D+1P

1 – 2 (2)

1 (fixed)

–

8D+1P

1 – 2 (1)

1 (fixed)

–

9D+1P – 15D+1P

1 (fixed)

–