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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.
I/O modules have ports and LEDs.
Figure 27 I/O Module (Drive Enclosure)
1 2
DI (OUT) LINK LEDDI (IN) LINK LED
D
I (IN) FAULT LED
READY LED
DI (OUT) FAULT LED
FAULT LED
IDENTIFY 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.
The LEDs turn on or blink to indicate the statuses that are listed below.
Table 21 Status and Meaning of Each LED (I/O Module [Drive Enclosure])
LED name LED status Meaning
DI (IN) LINK
(green)
The link between the DI (IN) port and the source port has been
established.
DI (IN) FAULT
(amber)
• The ports to remove the cables between enclosures from are
indicated. This occurs while a drive enclosure is being added.
• The link between the DI (IN) port and the source port is in error
status.
(blinks amber)
The ports to connect the cables are indicated. This occurs while a
drive enclosure is being added.
DI (OUT) LINK
(green)
The link between the DI (OUT) port and the destination port has been
established.
DI (OUT) FAULT
(amber)
The link between the DI (OUT) port and the destination port is in
error status.
(blinks amber)
The ports to connect the cables are indicated. This occurs while a
drive enclosure is being added.
READY
(green)
The I/O module is in normal status.
IDENTIFY
(blinks blue)
The installation location of the I/O module is identified according to
the instruction that is issued from ETERNUS Web GUI or ETERNUS CLI.
FAULT
(amber)
The I/O module is in error status.
A. Component Names
Drive Enclosure
85 Operation Guide (Basic)
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