Users Guide

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 fresh air temperature threshold. The system board 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
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 on
page 173 section.
Viewing historical temperature data using iDRAC web interface
To view historical temperature data:
1. In the iDRAC Web interface, go to System > Overview > Cooling > Temperature overview.
The Temperature overview 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.
NOTE: WX3200 AMD GPU card currently doesnot support I2C interface for temperature sensors. Hence, temperature
readings will not be available for this card from iDRAC interfaces.
Viewing historical temperature data using RACADM
To view historical data using RACADM, use the inlettemphistory command.
For more information, see the iDRAC RACADM CLI Guide available at https://www.dell.com/idracmanuals.
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Viewing iDRAC and managed system information