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Chapter 1 Hardware Configurations
1.2 Drive Enclosures
ETERNUS DX80 S2/DX90 S2 Disk storage system User’s Guide -Site Planning-
Copyright 2013 FUJITSU LIMITED P3AM-4822-12ENZ0
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● Top view
Figure 1.19 Top view of a 3.5" type drive enclosure
● Side view
Figure 1.20 Side view of a 3.5" type drive enclosure
1.2.1 I/O Modules
The I/O module is a component that controls the interaction between the controller and the drives.
The I/O module is connected to the controller or an I/O module on another drive enclosure.
■ Drive interface ports
A drive interface port is used to connect a controller enclosure or drive enclosures.
The drive interface port has an IN port and an OUT port.
The following table shows the drive interface port specifications.
Table 1.5 Drive interface port specifications for I/O modules
Interface Transfer speed (max.) Connector type Number of ports for each I/O module
SAS 6Gbit/s QSFP
1 (IN)
1 (OUT)