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Brocade 8510 or DCX Fiber Channel Switch may experience over heating

Last Updated:

Applies to

  • Brocade DCX8510
  • Brocade DCX switch



  • Brocade DCX or 8510 reporting high blade temperatures, and that some blades were marked `faulty` due to over temperature conditions.
  • Investigation further indicated that the ambient temperature in the data center, and as measured at the DCX fan intakes were within normal limits.
  • Replacement of the faulted blade does not resolve the issue
  • Overtemp condition is limited to a few of the sensors but most are in acceptable ranges
  • RASLOG will display warning and critical error messages:
2016/02/13-18:17:20:637749, [HIL-1501], 46454/3937, SLOT 7 | CHASSIS, WARNING, DCXa, Slot 5, high temperature (69).
2016/02/13-18:21:38:105359, [HIL-1502], 46461/3944, SLOT 7 | FFDC | CHASSIS, CRITICAL, DCXa, Slot 5, high temperature (74). Unit will be shut down in 2 minutes if temperature remains high.
2016/02/13-18:23:42:477105, [HIL-1503], 46469/3948, SLOT 7 | FFDC | CHASSIS, CRITICAL, DCXa, Slot 5, unit shutting down.
  • Output of the tempshow command will flag any components operating above the maximum temperature:
DCXa:FID128:root> tempshow
Sensor  Slot    State             Centigrade     Fahrenheit
32    5     Above maximum          72            161
sensor 32: (Temperature) is Above maximum, value is 72 C
  • If the blade is shutdown due to the high termperature, it will show up as "FAULTY (5)" in the slotshow command output:

slotshow -m
Slot   Blade Type     ID    Model Name     Status
5     CORE BLADE   98     CR16-8         FAULTY (5)



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