3Ware 9650SE-8LPML-SGL Installation Guide - Page 33

Installing the Battery Backup Unit

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Chapter 3. Installing the Battery Backup Unit The Battery Backup Unit (BBU) is an add-on that can be attached to a 3ware 9650SE RAID controller to supply power to the memory module from an attached battery pack in the event of a system power loss. This allows the controller to use write-caching for optimal performance and not be exposed to data loss in the event of a system power failure. When fully charged, the battery preserves the contents of the controller cache memory for a limited period of time (up to 72 hours). When power is restored, cached data is flushed to disks. The 9650SE-2LP does not support the BBU. Caution: Both the 3ware RAID controller and the BBU are sensitive electronic equipment and can be damaged through electrostatic discharge. When installing the BBU on the controller, be sure you are grounded. Use a grounding strap, or work on an ESD-protective mat. „ Do not remove the 3ware controller or BBU from their protective bags until you are properly grounded. „ Handle the 3ware RAID controller by its edges or by the metal bracket at its end. „ Do not touch any pin, contact, lead, or component on the 3ware RAID controller. Important: The battery is a heat-sensitive component. The cooler the battery, the longer the battery lasts. If possible, place the controller with the BBU in a slot with good airflow, away from components that generate the most heat in the system, such as video cards. www.3ware.com 29

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www.3ware.com
29
Chapter 3. Installing the
Battery Backup Unit
The Battery Backup Unit (BBU) is an add-on that can be attached
to a 3ware 9650SE RAID controller to supply power to the memory
module from an attached battery pack in the event of a system
power loss. This allows the controller to use write-caching for
optimal performance and not be exposed to data loss in the event of
a system power failure. When fully charged, the battery preserves
the contents of the controller cache memory for a limited period of
time (up to 72 hours). When power is restored, cached data is
flushed to disks.
The 9650SE-2LP does not support the BBU.
Caution:
Both the 3ware RAID controller and the BBU are
sensitive electronic equipment and can be damaged through
electrostatic discharge. When installing the BBU on the
controller, be sure you are grounded. Use a grounding strap, or
work on an ESD-protective mat.
Do not remove the 3ware controller or BBU from their
protective bags until you are properly grounded.
Handle the 3ware RAID controller by its edges or by the
metal bracket at its end.
Do not touch any pin, contact, lead, or component on the
3ware RAID controller.
Important:
The battery is a heat-sensitive component. The
cooler the battery, the longer the battery lasts. If possible, place
the controller with the BBU in a slot with good airflow, away from
components that generate the most heat in the system, such as
video cards.