Chapter 2 Hardware Installation
2.6 BBU Installation
2.6.1 BBU Module Installation Overview
The BBU module is an optional item that can sustain cache memory in the event of a power failure or in the unlikely event of failing both PSUs. A BBU is highly recommended. The optional BBU provides additional data security and helps minimize the loss of data during power shutdowns.
The BBU module is inserted into a module slot on the controller module. The BBU module is secured with two (2) retention screws. When shipped, the BBU module slot is covered with a dummy plate that must first be removed.
2.6.2BBU Warnings and Precautions
Do not use nor leave the BBU near a heat source. Heat can melt the insulation and damage other safety features of battery cells, possibly leading it to acid leak and result in flames or explosion.
Do not immerse the BBU in water nor allow it to get wet. Its protective features can be damaged. Abnormal chemical reactions may occur, possibly causing functional defects, acid leak, and other hazardous results.
Do not disassemble or modify the BBU. If disassembled, the BBU could leak acid, overheat, emit smoke, burst and/or ignite.
Do not pierce the BBU with a sharp object, strike it with a hammer, step on it, or throw it. These actions could damage or deform it, internal
If the BBU leaks, gives off a bad odor, generates heat, becomes discolored or deformed, or in any way appears abnormal during use, recharging or storage, immediately remove it from the subsystem and stop using it. If this is discovered when you first use the BBU, return it to Infortrend or your system vendor.
2.6.3Installation Procedure
To install a BBU into the controller module, please follow these steps:
Step 1. Prior to installing the BBU module, power off the subsystem or restart the subsystem after installation. For power off procedures, please refer to Section 4.4.
Step 2. Use a screwdriver to loosen the two (2) retention screws located on both sides of the dummy plate. (See Figure 2- 2)
