Green indicates that a controller is operating
healthily.
Amber indicates that a component failure has
occurred, or inappropriate RAID configurations have
caused system faults. It is also lit during the
initialization process.
Amber indicates the following:
- Cache Memory is dirty.
- Data in flash backup module is being flushed to
cache.
- Errors occurred with cache memory (ECC errors).
- Data is being flushed from flash backup module to
drive (when power is restored).
- Battery voltage is lower than 2.5V.
- Battery temperature reading is abnormal (out of
the 0 to 45°C range).
- Battery is not present.
Off indicates that the cache is clean, and that the
battery backup unit is capable of sustaining memory
in case of power loss.
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