Chapter 5: Subsystem Maintenance and Upgrading
Replacing a Faulty BBU
5-7
Figure 5-6: Removing the DIMM Module
Step 3.
Re-insert the new DIMM module
. Align the new DDR RAM
DIMM module with the DIMM socket and gently (but firmly)
push it in. The white clips on either side of the slot should
automatically close and lock the new DIMM module into place.
(See
Figure 5-7
)
Figure 5-7: Installing the DIMM Module
Step 4.
Install the controller module.
Once the new DIMM module has
been installed, place the controller module back in its original
location. (See
Section 5.2.3
)
5.4. Replacing a Faulty BBU
The AR3016G houses one (1) BBU that can sustain cache memory in the
event of a power failure or in the extremely unlikely event of both PSUs
failing. The BBU provides additional data security and helps minimize the
loss of data during power shutdowns.
Each BBU consists of a bracket, battery pack, and a PCB board that
connects to the backplane board. The optional BBU can be installed into the
subsystem in the middle of each controller module. Each BBU is secured to
the subsystem with two (2) retention screws. If a BBU has failed, it should
be replaced. Please read the BBU handling precautions below before
replacing it.