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Controller events
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Battery Charging This indicates that the
onboard cache backup
battery is charging.
Battery charging
started.
No action
necessary.
Cached Data Lost
xxx
Entries,
yyy
MB
If the controller is powered
off with writeback cache still
present, it is necessary to
flush this data when power is
restored. If power is
removed for an extended
time, the onboard battery will
deplete, and the cached data
will be lost.
Failure of power
for an extended
time with
writeback cache
present.
Check the file
system.
Cntrl
x
Temp Exceeded:
yy
The current internal
controller temperature is
indicated in degrees Celsius.
The controller’s internal
temperature has exceeded
the allowable limit, and the
controller will shut down to
prevent damage to internal
components.
Blocked fan.
Failing fan.
Elevated ambient
temperature.
Check enclosure
for sufficient air
flow.
Check for a failed
fan, if found
replace cooling fan
module.
Check the ambient
temperature of the
environment,
decrease the local
ambient
temperature.
Cntrl
x
Temp Warning:
yy
Shutdown will occur at zzC
The current internal
controller temperature is
indicated in degrees Celsius.
The controller’s internal
temperature is approaching
the maximum allowable limit.
Blocked fan.
Failing fan.
Elevated ambient
temperature.
Check enclosure
for sufficient air
flow.
Check for a failed
fan, if found
replace cooling fan
module.
Check the ambient
temperature of the
environment,
decrease the local
ambient
temperature.
Controller Event Messages Description Cause Action