Removing An Iom - Seagate RealStor 5005 Series Hardware Installation

6. Select Yes to continue; otherwise, select No. If you selected Yes, a message describes shutdown activity.
NOTE: If an iSCSI port is connected to a Microsoft Windows host, the following event is recorded in the
Windows event log: Initiator failed to connect to the target.
NOTE: See the Storage Management Guide for additional information.
Using the CLI
1. Log-in to the CLI.
2. In your dual-controller system, verify that the partner controller is online by running the command;
show controllers
3. Shut down the failed controller—A or B—by running the command:
shutdown a or shutdown b
The blue OK to Remove LED (back of enclosure) illuminates to indicate that the controller module can be safely
removed.
4. Illuminate the white Identify LED of the enclosure that contains the controller module to remove by running the
command:
set led enclosure 0 on
The Display LED on the Ops panel located on the enclosure left ear will be blinking green when the above command
is invoked.
NOTE: See the CLI Reference Guide for additional information.

Removing an IOM

IMPORTANT: Considerations for removing controller modules:
• In a dual-controller environment, you may hot-swap a single controller module in an operational enclosure, provided
you first shut down the faulty controller using the SMC or the CLI.
• In a dual-controller environment—if replacing both controller modules—you must adhere to the instructions
provided in
• Do not remove a faulty module unless its replacement is on-hand. All modules must be in place when the system is in
operation.
See CAUTION bullets regarding electrostatic discharge and anti-static protection on
Illustrations in the controller module replacement procedures show rear panel views of the enclosure, and IOMs are
properly aligned for insertion into the rear panel of the enclosure.
1. Verify that you have successfully shut down the controller module using the SMC or the CLI.
2. Locate the enclosure whose UID LED (Ops panel on enclosure front left ear) is illuminated, and within the enclosure,
locate the controller module whose OK to Remove LED is blue (rear panel).
3. Disconnect any cables connected to the controller.
Label each cable to facilitate re-connection to the replacement IOM.
4. Grasp the module latch between the thumb and forefinger, and squeeze the flange and handle together to release
the latch handle from its docking member as shown in the first illustration within
"Before you begin" (page 87).
page 77.
Figure 56 (page 90).
Replacing an IOM 89