可能和如下的bug有关系。3个FAN都故障的可能性不大,虚假性的消息倒是可能的...
Critical RPM alert on FRP 1000 and FPR2100 Series with ASA 'Chassis 0 Cooling Fan OK' SCH message
CSCvs82926
Symptom:
This is a Cosmetic defect
FPR1000 and FPR 2100 Series with ASA software installed displays a Critical alert for the Fan RPM, followed by Chassis 0 Cooling Fan OK message. This often creates a Smart Call Home (SCH) message which then triggers a TAC case to be opened.
Conditions:
FPR 1000 and 2100 Series
Workaround:
No workaround available
Further Problem Description:
ciscoasa# show environment
Cooling Fans:
-----------------------------------
Chassis Fans:
--------------------------------
Fan 1: 5280 RPM - Critical
Syslog data:
ASA-1-735002: Cooling Fan 0: Failure Detected
ASA-1-735001: Cooling Fan 0: OK
ASA-1-735002: Cooling Fan 0: Failure Detected
ASA-1-735001: Cooling Fan 0: OK
ASA-1-735002: Cooling Fan 0: Failure Detected
ASA-1-735001: Cooling Fan 0: OK
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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