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40 Appendix A Replacing and Upgrading FRUs

A.4 Replacing a Power Supply

The DSN-1100 xStack Storage Array contains one user replaceable power supply. It can be

replaced as follows.

To replace the power supply, use the following procedure.

1. Power down the DSN-1100 storage system and remove the power cord from the back

panel.

2. Attach an ESD-preventive wrist strap.

3. Open the enclosure to access the DSN-1100 storage system controller (see section A.1).

4. Remove the two screws shown in Figure A-24 found on the rear of the chassis.

Figure A-24 Remove These Two Screws on the Rear of the Chassis

Screw

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