Messages Reference Guide

System Event Log Messages for IPMI Systems 251
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 4-3. 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.