EonStor S12E-R1132-4/G1133-2 Installation and Hardware Reference Manual
Figure 3-8: BBU LED on S12E-G1133-2
The function is the same as the similar LED on the controller module.
The LED is off when the BBU is functioning normally and is able to
sustain the cache memory. The LED flashes to indicate the BBU is
charging. If the LED is illuminating amber, the BBU may have lost its
ability to hold electrical charge. You should then contact your vendor
to verify the problem.
IMPORTANT!
In addition to BBU failure itself and the charger failure, the
subsystem may also light the BBU fault LED when the following
occur:
1. The temperature sensor embedded with the charger circuit
reports a temperature reading exceeding 45 degree Celsius.
2. The BBU (battery backup unit) has been charged for over 12
hours. The BBU charger will enter a timer fault state.
When the above conditions occur, the charger circuit will enter a
low-power and self-protection state.
You may correct the faults when receiving a “BBU Thermal
Shutdown/Enter Sleep-Mode!” event message:
1. Check proper ventilation within the subsystem. You may also
check the readings from other sensors within the enclosure.
Airflow might have been disrupted by the absence of one or
several major modules or the failure of a cooling fan. Once the
thermal condition is improved, charging will resume
automatically.
2.
If a new battery module has been charged for over twelve (12)
hours and this event is issued, you may remove and re-install
the battery module. An empty battery module may take more
than 12 hours to fully charge. There is a timer embedded with
the charger, doing so can reset the timer. Charging will
resume automatically.
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