Battery Unit Leds - IBM System Storage DS5020 Installation, User's, And Maintenance Manual

interruption is caused if you remove the battery from the controller chassis, reset
the power to the storage subsystem, or if a storage expansion enclosure or battery
overheats.
Data caching starts after the battery is charged to the programmed voltage level,
which occurs when the storage subsystem power is first turned on, when a new
battery is installed to replace a failed battery, or when the subsystem power is
turned on after months of inactivity.
Attention: Write caching is suspended while a battery pack is either charging or
self-testing.
Figure 74 shows the location of the Battery LEDs.
Battery Service action Service action
charging required allowed (ok to
LED (fault) LED remove) LED
Figure 74. Battery unit LEDs
Service action Service action
required
allowed (ok to
(fault) LED
remove) LED
Chapter 4. Operating the storage subsystem
Battery
charging
LED
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