Replacing An Iom; Before You Begin - Seagate Exos E 4U106 Hardware Installation And Maintenance Manual

4. Continue to push the DDIC (drive) firmly until the handle fully engages. The camming foot on the carrier will
engage into a slot in the enclosure. You should hear a click as the latch handle engages and holds the handle
closed.
Figure 72 Installing an LFF drive carrier module (2 of 2)
5. Verify that the amber Fault LED on the DISC module handle is off. Verify that the front panel LED states show
no amber module faults. The enclosure front panel Drive Activity LED will blink green to show DISC activity.

Replacing an IOM

IMPORTANT: If the Exos E 4U106 enclosure is configured with a single expansion module, it must be installed in
IOM slot No.0. As you face the enclosure rear panel, this is the IOM slot located on the right. An IOM blank must be
installed in the adjacent slot (No.1) as shown in
flow through the enclosure during operation.
I/O module (IOM) denotes either a controller module (RAID canister) or an IOM (expansion canister). The I/O
module replacement procedure is solution-specific and depends on system configuration and software
implementation (including SAS zoning as well as multi-path and failover/failback procedures). Consult your
solution service documentation for details on pre and post I/O module replacement procedures to minimize system
disruption during replacement activities.
You may need to replace an IOM when:
• The Fault LED is illuminated
• Logs or events in the firmware indicate a problem with the module
• Troubleshooting indicates a problem with the module

Before you begin

Removing a controller or IOM from an operational enclosure significantly changes air flow within the enclosure.
Openings must be populated for the enclosure to cool properly. Leave modules in the enclosure until ready to
install a replacement. If replacing both IOMs in a dual-canister enclosure, record configuration settings before
installing the new controller modules. See
instructions about installing an additional controller module.
Figure 5 (page 19). This configuration is required to ensure sufficient air
"Removing an IOM" (page 86), and "Installing an IOM" (page 87)
Replacing an IOM
for
85