Figure 121 Drive Combination 3; Figure 122 Drive Combination 4 - Fujitsu ETERNUS DX100 S4 Design Manual

5. Hardware Configurations
Recommended RAID Group Configurations
Example 3: Paired drives are installed in three different enclosures

Figure 121 Drive Combination 3

A
Mirroring
C
B'
■
Double Striping Configuration with Distributed Parity
RAID5+0(2D+1P) ´2 is used in the following examples to explain how to install drives that are con-
figured for double striping with distributed parity.
The drive number is determined by the DE-ID of the enclosure and the slot number in which the
drive is installed. Drives are divided into two redundant set groups in ascending order of drive num-
bers.
Example 4: Drives are installed in two different enclosures

Figure 122 Drive Combination 4

A D
E C
Redundancy Group 1
:
Redundancy Group 2
:
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
B
A'
Mirroring
C'
B
F
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