HP ProLiant DL785

DescriptionColorLEDItem ID
This LED glows solid when 3.3 V auxiliary voltage is detected. The auxiliary
voltage preserves BBWC data and is available any time that the system
power cords are connected to a power supply.
GreenAuxiliary
power
3
This LED glows solid when the system is powered up and 12 V system
power is available. This power supply maintains the battery charge and
provides supplementary power to the cache microcontroller.
GreenSystem power4
Table 1-2 Battery health and BBWC status LED patterns
InterpretationLED 4 patternLED 3 pattern
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 fullycharged 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).
Flashing (1/2 Hz)
None
The cache microcontroller is waiting for the host controller to communicate.Double flash, then
pause
None
The battery pack is below the minimum charge level and is being charged.
Features that require a battery (such as write cache, capacity expansion,
stripe size migration, and RAID migration) are temporarily unavailable until
charging is complete. The recharge process takes between 15 minutes and
two hours, depending on the initial capacity of the battery.
Flashing (1 Hz)
None
The battery pack is fully charged, and posted write data is stored in the
cache.
Solid
None
The battery pack is fully charged, and there is no posted write data in the
cache.
Off
None
An alternating green and amber flash pattern indicates that the cache
microcontroller is executing from within its boot loader and receiving new
flash code from the host controller.
Flashing (1 Hz)Flashing (1 Hz)
There is a short circuit across the battery terminals or within the battery
pack. BBWC features are disabled until the battery pack is replaced. The life
expectancy of a battery pack is typically more than three years.
None
Solid
There is an open circuit across the battery terminals or within the battery
pack. BBWC features are disabled until the battery pack is replaced. The life
expectancy of a battery pack is typically more than three years.
None
Flashing (1 Hz)
20 Component identification