Figure 110 Enclosure Connection Paths (Eternus Dx500 S4/Dx500 S3) - Fujitsu ETERNUS DX500 S4/DX600 S4 Design Manual

5. Hardware Configurations
Configuration Schematics
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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 con-
nection paths fails.
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ETERNUS DX500 S4/DX500 S3
For the ETERNUS DX500 S4/DX500 S3, one controller enclosure and up to 22 drive enclosures can be connected.
There are two connection paths between a controller enclosure and drive enclosures. For each connection path,
up to 11 drive enclosures and up to 264 drives can be connected.

Figure 110 Enclosure Connection Paths (ETERNUS DX500 S4/DX500 S3)

DI DI (IN)
DE #0A
DI (IN) DI (OUT)
Line 0
DE #0x
DI (OUT) DI (IN)
DE #01
DI (IN) DI (OUT)
DI (OUT) DI (IN)
DE #00
DI (IN)
DI (OUT) DI (OUT)
CE
DI (OUT): Drive interface (OUT) port
DI (IN): Drive interface (IN) port
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
DI DI (IN)
DE #1A
DI (IN) DI (OUT)
Line 1
DE #1x
DI (OUT) DI (IN)
DE #11
DI (IN) DI (OUT)
DI (OUT) DI (IN)
DE #10
DI DI (IN) DI
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