HP P4000 HP Smart Array SAS controllers for Integrity servers support guide - Page 22

Battery pack LEDs, Smart Array battery pack LEDs, Table 1-11 Battery pack LEDs - quickspecs

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Battery pack LEDs The battery pack has four runtime LEDs that indicate battery readiness and error conditions. Figure 1-12 Smart Array battery pack LEDs 1 2 3 4 Table 1-11 Battery pack LEDs LED Color Description 1 Green 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. 2 Green 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. 3 Amber Battery Health LED. See Table 1-12. 4 Green BBWC Status LED. See Table 1-12. Table 1-12 Interpreting battery pack LEDs LED 3 State -- LED 4 State Interpretation One flash every two seconds 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. 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: http://www.hp.com -- Flash twice, then The cache microcontroller is waiting for the host controller to communicate. pause -- One flash per The battery pack is below the minimum charge level and is being charged. second Features that require a battery (such as write cache, capacity expansion, stripe 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. 22 Controller overview

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Battery pack LEDs
The battery pack has four runtime LEDs that indicate battery readiness and error conditions.
Figure 1-12 Smart Array battery pack LEDs
3
4
1
2
Table 1-11 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
Table 1-12
.
Amber
3
BBWC Status LED. See
Table 1-12
.
Green
4
Table 1-12 Interpretingbattery 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.
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:
http://www
.hp.com
One flash every
two seconds
--
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
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.
One flash per
second
--
22
Controller overview