Symptom

N5K# sh env fan Fan: ------------------------------------------------------ Fan Model Hw Status ------------------------------------------------------ Chassis-1 N5548P-FAN-B -- ok Chassis-2 N5548P-FAN -- failure PS-1 N55-PAC-750W-B -- ok PS-2 N55-PAC-750W-B -- ok If FAN of different type is inserted into the switch N5K will power cycle with below reason: [ 307.506360] Shutdown Ports.. [ 307.540768] writing reset reason 104, Fan dir mismatch [ 307.650247] journal commit I/O error [ 307.693234] journal commit I/O error

Conditions

FAN needs to fail.

Workaround

All N5K require 2 FANs of same type to be used in the system. Correct FAN PID can be read from the FAN that is working correctly.

Further Problem Description