Figure 126 Enclosure Connection Path (When Only One Controller Is Installed); Figure 127 Enclosure Connection Path (When Two Controllers Are Installed) - Fujitsu ETERNUS DX S5 Series Design Manual

6. Hardware Configurations
Configuration Schematics
■
Enclosure Connection Path
In the ETERNUS DX, 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
connection paths fails.
●
ETERNUS DX60 S5
Connect the controller enclosure to the drive enclosure as shown in the following figures.
Connection paths are not duplicated when only one controller is installed.
Figure 126
DI
DE#03
DI (IN)
DI (OUT)
DE#02
DI (IN)
DI (OUT)
DE#01
DI (IN)
DI (OUT)
CE
DI (OUT):
DI (IN):
Figure 127
DI
DE#03
DI (IN)
DI (OUT)
DE#02
DI (IN)
DI (OUT)
DE#01
DI (IN)
DI (OUT)
CE
DI (OUT):
DI (IN):
Enclosure Connection Path (When Only One Controller Is Installed)
Drive interface (OUT) port
Drive interface (IN) port
Enclosure Connection Path (When Two Controllers Are Installed)
DI (IN)
DI (OUT)
DI (IN)
DI (OUT)
DI (IN)
DI
DI (OUT)
Drive interface (OUT) port
Drive interface (IN) port
237 Design Guide