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AR3016G Installation and Hardware Reference Manual
2.7. Installing the Optional BBU
2.7.1 BBU Installation Overview
The BBU is an optional item that can sustain cache memory in the event of
a power failure or in the extremely unlikely event of both PSUs failing.
Purchasing and installing a BBU is highly recommended. The optional BBU
provides additional data security and helps minimize the loss of data during
power shutdowns.
The BBU is inserted into the subsystem in the middle of the controller
module. The BBU is secured to the subsystem with two (2) retention screws.
When shipped, the BBU slot in the subsystem rear panel is covered with a
metal dummy plate that must first be removed.
2.7.2 BBU Warnings and Precautions
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2-6
Install or replace the BBU supplied by your ES subsystem vendors
only. Use of battery cells provided otherwise will void our
warranty.
Always dispose of discharged or used batteries in an ecologically
responsible manner. Dispose used BBU at authorized battery
disposal sites only.
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 short-circuiting can occur, possibly causing functional
defects, acid leak, and other hazardous results.
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 Uniwide or your system vendor.
Installing the Optional BBU
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