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View Sensor Information For
Temperature
Voltage
Checking the System for Fresh Air Compliance
Fresh air cooling directly uses outside air to cool systems in the data center. Fresh air compliant systems can operate
above its normal ambient operating range (temperatures up to 113 °F (45 °C)).
NOTE: Fresh air configuration is not supported for 135W CPUs, PCIe SSD, GPU cards, and LR DIMMs. For the
supported fresh air configurations for the server, contact Dell.
To check the system for fresh air compliance:
1.
In the iDRAC7 Web interface, go to Overview → Server → Power / Thermal → Temperatures.
The Temperatures page is displayed.
2.
See the Fresh Air section that indicates whether the server is fresh air compliant or not.
Viewing Historical Temperature Data
You can monitor the percentage of time the system has operated at ambient temperature that is greater than the
normally supported temperature threshold. The system board inlet temperature sensor reading is collected over a period
of time to monitor the temperature. The data collection starts when the system is first powered on after it is shipped from
the factory. The data is collected and displayed for the duration when the system is powered on. You can track and store
the monitored inlet temperature for the last seven years.
NOTE: You can track the inlet temperature history even for systems that are not fresh air compliant.
Two temperature bands are tracked:
•
Warning band — Consists of the duration a system has operated above the inlet temperature sensor warning
threshold. The system can operate in the warning band for 10% of the time for 12 months.
•
Critical band — Consists of the duration a system has operated above the inlet temperature sensor critical
threshold. The system can operate in the critical band for 1% of the time for 12 months which also increments time in
the warning band.
The collected data is represented in a graphical format to track the 10% and 1% levels. The logged temperature data can
be cleared only before shipping from the factory.
An event is generated if the system continues to operate above the normally supported temperature threshold for a
specified operational time. If the average temperature over the specified operational time is greater than or equal to the
warning level (> = 8%) or the critical level (> = 0.8%), an event is logged in the Lifecycle Log and the corresponding
SNMP trap is generated. The events are:
•
Warning event when the inlet temperature was greater than the warning threshold for duration of 8% or more in the
last 12 months.
•
Critical event when the inlet temperature was greater than the warning threshold for duration of 10% or more in the
last 12 months.
•
Warning event when the inlet temperature was greater than the critical threshold for duration of 0.8% or more in the
last 12 months.
•
Critical event when the inlet temperature was greater than the critical threshold for duration of 1% or more in the
last 12 months.
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Using Web Interface
Overview → Server → Power/
Thermal → Temperatures
Overview → Server → Power/
Thermal → Voltages
Using RACADM
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Troubleshooting
