2–50 Hardware description
Hitachi Unified Storage Hardware Service Guide
Cache backup battery
The cache backup battery on the CBL/CBLD Controller Box has two LEDs:
ALM and RDY.
Legend Component Color Description
¶
ALM LED
Red
ON = problem with cache backup battery. Visit
the HDS Support Portal at portal.hds.com.
OFF = normal operation for cache backup
battery.
?
RDY LED
Green
ON = normal condition for battery.
Blinking = battery is charging at start-up.
OFF = abnormal status due to:
Cache backup battery not being installed.
Cache backup battery voltage being abnormal.
Battery temperature being abnormal.
Visit the HDS Support Portal at portal.hds.com.
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