Viewing temperature information – HP Integrated Lights-Out 4 User Manual
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from all of the installed server and nonserver blades to adjust the fans to provide the appropriate
enclosure cooling.
The following information is displayed for virtual fans:
◦
Location
◦
Status
◦
Speed
shows the Fan Information page for a blade server.
Figure 74 System Information – Fan Information page for blade servers
Viewing temperature information
The Temperature Information page includes a temperature graph and a table that displays the
location, status, temperature, and threshold settings of temperature sensors in the server chassis.
If the server is powered off, the system health information on this page is current as of the last
power off. Health information is updated only when the server is powered on and POST is complete.
The temperature is monitored to maintain the sensor location temperature below the caution
threshold. If one or more sensors exceed this threshold, iLO implements a recovery policy to prevent
damage to server components.
•
If the temperature exceeds the caution threshold, the fan speed is increased to maximum.
•
If the temperature exceeds the caution threshold for 60 seconds, a graceful server shutdown
is attempted.
•
If the temperature exceeds the critical threshold, the server is shut down immediately to prevent
permanent damage.
Monitoring policies differ depending on the server requirements. Policies usually include increasing
fan speeds to maximum cooling, logging temperature events in the IML, providing a visual indication
of events by using LED indicators, and starting a graceful shutdown of the operating system to
avoid data corruption.
Additional policies are implemented after an excessive temperature condition is corrected, including
returning the fan speed to normal, recording the event in the IML, turning off the LED indicators,
and canceling shutdowns in progress (if applicable).
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Using iLO