PA-5000 - Critical Master Chassis Alarm for Temperature - Jaguar Temperature is High
11021
Created On 06/21/21 14:08 PM - Last Modified 06/12/23 11:51 AM
Symptom
A PA-5000 series generating critical alarms for chassis temperature, and may also show alarms for Power Supply Temperature.
2021/06/06 12:30:15 critical general general 0 Chassis Master Alarm: Temperature 2021/06/06 12:30:15 critical general general 0 Chassis Master Alarm: Power Supply Temperature
When checking the system environmental, the Jaguar temperature is showing above the maximum value with Alarm value of True.
> show system environmentals ----Thermal---- Slot Description Alarm Degrees C Min C Max C S1 Temperature @ 10G Phys [U171] False 43.00 5.00 60.00 S1 Temperature @ Jaguar [U172] True 61.00 5.00 60.00 S1 Temperature @ Tiger [U173] False 52.50 5.00 60.00 S1 Temperature @ Dune [U174] False 56.10 5.00 60.00
Environment
PA-5020
PA-5050
PA-5060
Cause
If you also see that the fans are spinning at a healthy rate of around 7000 rpm, and there are no alarms on the fan try, then the issue may be related to the fan filter or restricted air flow.
> show system environmentals ----Fans---- Slot Description Alarm RPMs Min RPM S1 Fan #1 RPM False 7142 2500 S1 Fan #2 RPM False 7194 2500 S1 Fan #3 RPM False 7055 2500 S1 Fan #4 RPM False 7031 2500 S1 Fan #5 RPM False 7068 2500 S1 Fan #6 RPM False 7031 2500 S1 Fan #7 RPM False 7167 2500 S1 Fan #8 RPM False 7297 2500 S1 Fan #9 RPM False 7245 2500 S1 Fan #10 RPM False 7180 2500
Resolution
1) The PA-5000 series airflow is side to side, so if it is placed in a rack designed for front to back or back to front airflow with covered sides, this may not provide sufficient cooling for the device.
2) Check physically for anything else that could obstruct the airflow.
3) Inspect and replace the air filter following the 'Replacing the Air Filter' section of the PA-5000 Series Hardware Reference Guide
Inspect the air filter on a periodic basis. A dirty air filter restricts airflow in the unit, reducing the ventilation and effective cooling of the system. To maintain optimum system operation, Palo Alto Networks recommends that you replace the filter every 6 months. Discard used filters; do not attempt to clean and reuse them. You can purchase replacement air filters from Palo Alto Networks or an authorised reseller.
You can replace the air filter without replacing the full fan tray. It is not necessary to power down the firewall to replace the air filter.