Figure 14 Smart Array battery pack LEDs
3
4
1
2
Table 11 Battery pack LEDs
Description
Color
LED
System Power LED. This LED glows steadily when the system is powered on 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.
Green
1
Auxiliary Power LED. This LED glows steadily when 3.3 V auxiliary voltage is detected.
The auxiliary voltage is used to preserve BBWC data and is available when system
power cords are connected to a power supply.
Green
2
Battery Health LED. See
Amber
3
BBWC Status LED. See
Green
4
Table 12 Interpreting battery pack LEDs
Interpretation
LED 4 State
LED 3 State
The system is powered off 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.
One flash every
two seconds
--
Data preservation time is extended when 3.3 V auxiliary power is available, as
indicated by LED 2. In the absence of auxiliary power, battery power preserves
the data. A fully-charged battery can normally preserve data for two days.
The battery lifetime also depends on the cache module size. For more information,
see the controller QuickSpecs on the HP website at:
The cache microcontroller is waiting for the host controller to communicate.
Flash twice, then
pause
--
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
One flash per
second
--
size migration, and RAID migration) are unavailable until charging is complete.
The recharge process takes between 15 minutes and 2 hours, depending on the
initial capacity of the battery.
The battery pack is fully charged, and posted write data is stored in the cache.
Steady glow
--
The battery pack is fully charged, and there is no posted write data in the cache.
Off
--
18
Controller overview
