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DSN-2100 Hardware Reference Guide 23

Appendix A Replacing and Upgrading FRUs

This appendix describes how to replace or upgrade the Field Replaceable Units (FRUs) in your

xStack Storage Array. FRUs that can be replaced or upgraded include:

 Battery Pack

 System and buffer memory

 SATA drives

 Fans

 Power supplies

A.1 Installing the Battery Pack

The xStack Storage Array accommodates a 4-cell or 6-cell shrink-wrapped battery pack.

Because write-back caching is always enabled, we recommend you have a battery to back up

the buffer cache contents.

To install a battery in your xStack Storage SAN Array, follow these steps:

1. Hold the battery as shown to align the fastener pad. Make sure the battery cable and

connector is located nearest to the battery socket J35 on the controller (see Figure A-1 ).

Figure A-1 Aligning the Battery

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D-Link DSN-2100-10 - xStack Storage Area Network Array Hard Drive Guide de l'utilisateur Page 23