Reference Guide

System Event Log Messages for IPMI Systems 47
Fan Sensor Events
The cooling device sensors monitor how well a fan is functioning. These messages provide status warning
and failure messages for fans for a particular chassis.
Table 3-3. Fan Sensor Events
Event Message Severity Cause
< Sensor Name/Location > Fan
sensor detected a failure
<
Reading > where < Sensor
Name/Location
> is the entity
that this sensor is monitoring.
For example "BMC Back Fan" or
"BMC Front Fan."
Reading is specified in RPM.
For example, 100 RPM.
Critical The speed of the specified <Sensor Name/Location>
fan is not sufficient to provide enough cooling to the
system.
<Sensor Name/Location > Fan
sensor returned to normal state
<
Reading >.
Information The fan specified by <Sensor Name/Location> has
returned to its normal operating speed.
<
Sensor Name/Location > Fan
sensor detected a warning
<
Reading >.
Warning The speed of the specified <Sensor Name/Location>
fan may not be sufficient to provide enough cooling
to the system.
<
Sensor Name/Location > Fan
Redundancy sensor redundancy
degraded.
Information The fan specified by <Sensor Name/Location> may
have failed and hence, the redundancy has been
degraded.
<
Sensor Name/Location > Fan
Redundancy sensor redundancy
lost.
Critical The fan specified by <Sensor Name/Location> may
have failed and hence, the redundancy that was
degraded previously has been lost.
<Sensor Name/Location> Fan
Redundancy sensor redundancy
regained
Information The fan specified by <Sensor Name/Location> may
have started functioning again and hence, the
redundancy has been regained.