EonStor U16U Installation and Hardware Reference Manual
2-12
BBU Installation
2.7. BBU
Installation
2.7.1 About the BBU Installation
Users are free to purchase an optional BBU module that is able to sustain a 512MB cache
memory for up to 72 hours 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 to minimize the loss of data
during power shutdowns.
The BBU comes with the battery unit itself and a battery charging board. Both these
items must be installed.
2.7.2 BBU Installation Procedure
To install a BBU module into the ES U16U subsystem, please follow these steps:
Step 1.
Remove the controller Module
– If the controller module has already been
installed into the ES U16U chassis, it must be removed. To remove the
controller module
loosen the hand retention screws
that appears on the rear
panel of the controller module. Gently open the rear flaps and then gently
pull
the controller module out
of the Chassis. (For more detailed instructions
please see
Chapter 5
)
Step 2.
Remove the Battery connector cap –
When shipped, in place of a battery
charger board, the battery charger connector (located on the controller board)
will have a pre-installed Battery connector cap.
Remove this cap
. (See
Figure
2-6
)
