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50020102 : Not reading device on system management (I2C) bus [arg1]. The rear LED card in the chassis [arg2] communication is offline.

Not reading device on system management (I2C) bus [arg1]. The rear LED card in the chassis [arg2] communication is offline.

The Chassis Management Module (CMM) is not able to communicate with the rear LED card.

Severity​

Error

Alert Category​

Chassis/System Management (Critical)

Log Source​

SERVPROC

Serviceable​

Yes

Recoverable​

Yes

Chassis LED that is Lit​

Chassis Fault

CIM Information​

Prefix:CMM

and ID:0125

SNMP Trap ID​

mmTrapChassisC

Automatically Notify Support​

Yes

User Response​

If the chassis has one CMM, replace the CMM. If the problem remains, replace the rear LED card. As a potential temporary workaround, try to move the CMM to the other CMM bay. If the chassis has two CMMs, replace the rear LED card.