Component identification 88
Battery pack LEDs
Item ID Color
Description
1
Green
System Power LED. This LED glows steadily when the
system is powered up and 12 V system power is
available. This power supply is used to maintain the
battery charge and provide supplementary power to the
cache microcontroller.
2
Green
Auxiliary Power LED. This LED glows steadily when 3.3V
auxiliary voltage is detected. The auxiliary voltage is
used to preserve BBWC data and is available any time
that the system power cords are connected to a power
supply.
3
Amber
Battery Health LED. To interpret the illumination patterns
of this LED, see the following table.
4
Green
BBWC Status LED. To interpret the illumination patterns
of this LED, see the following table.
LED3 pattern
LED4 pattern
Interpretation
—
One blink every
two seconds
The system is powered down, and the cache contains data that has
not yet been written to the drives. Restore system power as soon as
possible to prevent data loss.
Data preservation time is extended any time that 3.3 V auxiliary
power is available, as indicated by LED 2. In the absence of
auxiliary power, battery power alone preserves the data. A fully-
charged battery can normally preserve data for at least two days.
The battery lifetime also depends on the cache module size. For
further information, refer to the controller QuickSpecs on the HP
website (
http://www.hp.com
).
—
Double blink,
then pause
The cache microcontroller is waiting for the host controller to
communicate.
Содержание AX691B
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Страница 55: ...Removal and replacement procedures 55 6 Open the heatsink retaining bracket 7 Remove the heatsink ...
Страница 68: ...Cabling 68 Cabling SAS hard drive cabling Optical drive cabling ...
Страница 69: ...Cabling 69 BBWC battery cabling ...