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Chapter 2: Hardware Installation
BBU Installation
5-11
Figure 2-6: Drive Tray Key-lock Rotation
Step 6.
Once the drive bays are populated and the subsystem powered on,
the RAID controller will automatically spin up the hard drives and
recognize their presence.
2.8 BBU Installation
2.8.1 BBU Module Installation Overview
The BBU can sustain cache memory in the event of a power failure or in the
unlikely event of failing both PSUs. The use of a BBU is highly
recommended. The BBU is an optional item and can be ordered separately.
The BBU is inserted into the subsystem in the top center of the controller
faceplate. The BBU is secured to the subsystem with two hand screws.
When shipped, the BBU slot in the subsystem rear panel is covered with a
metal dummy plate that must first be removed.
Read the BBU handling precautions before replacing it.
Please follow the steps in
Section 2.8.3
to install a BBU into your system.
2.8.2 BBU Warnings and Precautions
•
Install or replace the BBU with BBUs supplied by your Galaxy
subsystem vendors only. Use of battery cells provided from another
source will void your warranty.
•
Always dispose of discharged or used batteries in an ecologically
responsible manner 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 the battery cells,
possibly causing an acid leak and resulting in a fire or explosion.
•
Do not immerse the BBU in water nor allow it to get wet. Its
protective features can be damaged and abnormal chemical
reactions may occur, possibly causing functional defects, acid
leaks, 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 and
an internal short-circuiting can occur, possibly causing functional
defects, acid leaks, and other hazardous results.