Users Guide

duration when the system is powered on. You can track and store the monitored temperature for the last
seven years.
NOTE: You can track the temperature history even for systems that are not fresh air compliant.
However, the threshold limits and fresh air related warnings generated are based on fresh air
supported limits. The limits are 42ºC for warning and 47ºC for critical. These values correspond to
40ºC and 45ºC fresh air limits with 2ºC margin for accuracy.
Two fixed temperature bands are tracked that are associated to fresh air limits:
• Warning band — Consists of the duration a system has operated above the temperature sensor
warning threshold (42ºC). 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 temperature sensor critical
threshold (47ºC). 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 temperature was greater than the warning threshold for duration of 8% or
more in the last 12 months.
• Critical event when the temperature was greater than the warning threshold for duration of 10% or
more in the last 12 months.
• Warning event when the temperature was greater than the critical threshold for duration of 0.8% or
more in the last 12 months.
• Critical event when the temperature was greater than the critical threshold for duration of 1% or more
in the last 12 months.
You can also configure iDRAC to generate additional events. For more information, see the Setting alert
recurrence event section.
Viewing historical temperature data using iDRAC web interface
To view historical temperature data:
1. In the iDRAC Web interface, go to Overview → Server → Power / Thermal → Temperatures.
The Temperatures page is displayed.
2. See the System Board Temperature Historical Data section that provides a graphical display of the
stored temperature (average and peak values) for the last day, last 30 days, and last year.
For more information, see the iDRAC Online Help.
NOTE: After an iDRAC firmware update or iDRAC reset, some temperature data may not be
displayed in the graph.
Viewing historical temperature data using RACADM
To view historical data using RACADM, use the inlettemphistory subcommand. For more information,
see the iDRAC8 RACADM Command Line Reference Guide.
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