Component; Figure 169 I/O Modules; Figure 170 Fan Expander Module; Table 91 Drive Interface Port Specification (I/O Module) - Fujitsu ETERNUS DX S5 Series Design Manual

6. Hardware Configurations
Drive Enclosure

Component

This section explains the components of the drive enclosures and the high-density drive enclosures.
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I/O Modules
The I/O module is a component that controls how the controller and the drives interact.
The I/O module is connected to the controller or an I/O module on another drive enclosure.
A drive enclosure has two I/O modules, which makes it possible for a failed I/O module to be replaced while the
system is running.
Figure 169 I/O Modules
1
DI (IN) LINK LED
DI (IN) FAULT LED
1
DI (IN) port
This port is used to connect between enclosures.
2
DI (OUT) port
This port is used to connect between enclosures.
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Drive Interface Ports
This port is for connecting controller enclosures or drive enclosures.
The drive interface port has an IN port and an OUT port.
The drive interface port specifications are shown below.
Table 91 Drive Interface Port Specification (I/O Module)
Interface
SAS
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Fan Expander Module (FEM)
An FEM is a cooling fan module. Two FEMs are installed in a high-density drive enclosure.
If one of the FEMs fails, the failed FEM can be replaced while the system is running.
Figure 170 Fan Expander Module
READY LED
FAULT LED
IDENTIFY LED
2
DI (OUT) LINK LED
DI (OUT) FAULT LED
Transfer rate
Connector type
(max.)
12Gbit/s miniSAS HD (SFF-8644)
270
READY LED
IDENTIFY LED
FAULT LED
Number of ports for each I/O module
1 (IN)
1 (OUT)
Design Guide