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Galaxy GHDX-2422S-8+12F4D Installation and Hardware Reference Manual

BBU Installation

2-10

2.8 BBU Installation

2.8.1 BBU Module Installation Overview

The BBU module is an optional item that can sustain cached data in the event of a power

outage or in the unlikely event that both PSUs have failed. Purchasing and installing a

BBU is highly recommended. The optional BBU provides additional data security and

helps minimize the chance of data loss during power shutdowns.

The BBU module is inserted into the subsystem in the module slot at the upper left corner

of the controller module. The BBU module is secured to the subsystem with two (2)

retention screws. When shipped, the BBU module slot in the subsystem rear panel is

covered with a metal dummy plate that must first be removed.

2.8.2 Installation Procedure

To install a BBU into the subsystem, please follow these steps:

Step 1. Remove the metal sheet from the chassis. A metal sheet covers the

BBU module slot on the rear panel of the subsystem. The metal sheet is

attached to the chassis with two (2) screws. These screws must be

removed. To loosen, turn the screws counterclockwise. (See Figure 2-5)

Figure 2-5: Remove the Metal Sheet Retention Screws

Step 2. Once the retention screws are loosened, wedge a screwdriver between

the back of the dummy plate and the interior wall of the subsystem

enclosure. Gently lever the dummy plate out of the enclosure. (See

Figure 2-6)

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