Figure 104 Enclosure Connection Path - Fujitsu ETERNUS AF250 Design Manual

3. Hardware Configurations
Configuration Schematics
MP: Mid Plane
Board that is located between the front of the enclosure and the rear of the enclosure (the controller
(CM) side)
PSU: Power Supply Unit
■
Enclosure Connection Path
In the ETERNUS AF, multiple paths are used to connect a controller enclosure (CE) to drive enclosures (DE).
A drive enclosure has two independent drive interface ports. Path redundancy is maintained by connecting the
drive enclosure to two controllers directly. This configuration allows operation to continue even if one of the con-
nection paths fails.

Figure 104 Enclosure Connection Path

DE #01
DI (IN) DI (IN)
DI (OUT) DI (OUT)
CE
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