Monitoring Chassis Temperature
Chassis and Power Supplies
page 3-62
OmniSwitch 6900 Hardware Users Guide
June 2020
Temperature Errors
The switch monitors the ambient air temperature at all times via an onboard sensor. If an over-temperature
condition occurs, there are two different levels of error severity:
•
Warning threshold has been exceeded
•
Danger threshold has been exceeded
Warning Threshold
If the temperature exceeds the switch’s warning threshold, the switch sends out a trap. Traps are printed to
the console in the form of text error messages.
When the warning threshold has been exceeded, switch operations remain active. However, it is
recommended that immediate steps be taken to address the over-temperature condition.
Addressing warning threshold temperature conditions may include:
•
Checking for a chassis airflow obstruction
•
Checking the ambient room temperature
•
Checking the fan tray status using the
command. See page
Note.
For the OS6900’s default warning threshold value, refer to the specifications on
. The
warning threshold may be viewed using the
show temperature
command.
Temperature Danger Threshold
If the chassis ambient air temperature rises above the danger threshold (see specifications on
) the
switch will power off until the temperature conditions have been addressed and the switch is manually
booted. The danger threshold is factory-set and cannot be configured by the user.
Addressing danger threshold temperature conditions may include:
•
Checking for a chassis airflow obstruction or direction mismatch.
•
Checking the ambient room temperature
•
Checking the fan tray status using the
command. See page
Monitoring Fan Tray Status
The switch constantly monitors fan operation. If any of the switch’s fans unexpectedly shuts down, the
switch sends out a trap and the FAN LED on the chassis front panel displays amber.
To check the switch’s current fan tray status, use the
command. For example:
-> show fan
For more information about this command, see the “Chassis Management and Monitoring Commands”
chapter in the
OmniSwitch
CLI Reference Guide
.
