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a. Select Support › Support Center › Diagnostics.
b. Select Collect Configuration Data.
c. Click Collect.
The file is saved in the Downloads folder for your browser with the name,
configurationData-<arrayName>-<dateTime>.7z.
4. If the controller is not already offline, take it offline now using ThinkSystem System Manager.
a. Select Hardware.
b. If the graphic shows the drives, select Show back of shelf to show the controllers.
c. Select the controller that you want to place offline.
d. From the context menu, select Place offline, and confirm that you want to perform the
operation.
If you are accessing ThinkSystem System Manager using the controller
you are attempting to take offline, a ThinkSystem System Manager
Unavailable message is displayed. Select Connect to an alternate
network connection to automatically access ThinkSystem System
Manager using the other controller.
5. Wait for ThinkSystem System Manager to update the controller's status to offline.
Do not begin any other operations until after the status has been updated.
6. Select Recheck from the Recovery Guru, and confirm that the OK to remove field in the Details
area displays Yes, indicating that it is safe to remove this component.
4.2.3. Step 3: Remove controller canister
You remove the failed controller canister so you can replace your DIMMs with new ones.
Steps
1. Put on an ESD wristband or take other antistatic precautions.
2. Label each cable that is attached to the controller canister.
3. Disconnect all the cables from the controller canister.
To prevent degraded performance, do not twist, fold, pinch, or step on the
cables.
4. Confirm that the Cache Active LED on the back of the controller is off.
5. Squeeze the handles on either side of the controller, and pull back until it releases from the
shelf.
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