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The battery performs a self-test at startup and every 25 hours thereafter (during
which time the Battery LED flashes). If necessary, the battery begins recharging at
that time. If the battery fails the self-test, the Battery LED turns off, indicating a
battery fault.
Data caching starts after the battery completes the startup tests.
Attention:
Write caching is suspended while a battery pack is either charging or
self-testing.
Figure 68 shows the location of the Battery LEDs.
3
2
1
ds470008
Figure 68. Battery unit LEDs
Table 30. Battery unit LEDs
Number
LED
1
Service Action
Allowed (OK to
Remove)
2
Service Action
Required
(Fault)
3
Battery
Charging
Normal Status
Problem Status
Off
On
Off
On
On, ready
Off
Blinking, charging
Chapter 4. Operating the storage subsystem
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2
3
103
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