Chapter 5: Subsystem Maintenance and Upgrading

Step 4. Install the replacement module by aligning it with the module bay on the PSU module and gently lowering it into. The fan outlet should be aligned with the PSU faceplate and that the side with screw holes should be facing up.

Do this with a precisely vertical motion so that the cooling module’s connector can correctly mate with the connector in the module bay.

Step 5. Secure the module by fastening the screws you previously removed.

Step 6. Reinstall the PSU module into chassis. When powered on, check if the cooling fan LEDs are lit. If not, that means your cooling fans are operating properly.

5.7.Replacing a Failed Hard Drive

5.7.1Hard Drive Maintenance Overview

•Hot-swappable drive trays: The drive trays are all hot-swappable. A disk drive failure can be corrected online.

•Handles: If the failed hard drive is behind either the left or right front handle, unfold the handles to open the front access to the drive trays.

Figure 5-14: Open the Front Handles

Step 1. Open flap: Once the front flap on the drive tray has been opened, the drive tray must be removed from the subsystem. Failure to remove the drive tray from the subsystem after the front flap has been opened may cause data errors.

Step 2. Slowly remove a faulty drive: When removing a drive tray from the

subsystem, pull the drive tray out only about one inch and

Replacing a Failed Hard Drive

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