50020407 : Not reading device on system management (I2C) bus [arg1]. Fan module [arg2] communication is offline.
Not reading device on system management (I2C) bus [arg1]. Fan module [arg2] communication is offline.
The Chassis Management Module (CMM) is not able to communicate with the specified fan module. If there is an error in a fan logic module, the CMM cannot monitor the associated fan modules or detect their presence, and the fan modules on that side of the chassis will speed up. Solve fan logic module issues before you address fan-module issues.
Severity
Error
Alert Category
Chassis/System Management (Critical)
Log Source
Cool_07
Serviceable
Yes
Recoverable
Yes
Chassis LED that is Lit
Chassis Fault
SNMP Trap ID
mmTrapChassisC
Automatically Notify Support
Yes
User Response
Replace the fan module.
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