SNMPv1 fails after AC powercycle with 2 CMMs - IBM Flex System Enterprise Chassis (8721, 8724)


RETAIN tip: H207135


The Chassis Management Module (CMM) may not respond to Simple Network Management Protocol (SNMP) version 1 requests, after an AC power cycle, if two CMMs are installed.

Affected configurations

The system may be any of the following IBM servers:

  • Flex System Enterprise Chassis, type 8721, any model
  • Flex System Enterprise Chassis, type 8724, any model

The system is configured with one or more of the following IBM Options:

  • Flex System Chassis Management Module, Option part number 68Y7029, any Replacement part number (CRU)

This tip is not software specific.

The following system firmware level(s) are affected:

  • CMM Version 1.20.2 Build ID: 2PET10I


This issue will be corrected in a future release of CMM firmware.

The target date for the release is scheduled for fourth quarter 2012.

The file is or will be available by selecting the appropriate Product Group, type of System, Product name, Product machine type, and Operating system on IBM Support's Fix Central web page, at the following URL:


Reboot the primary CMM.

Applicable countries and regions


Document id:  MIGR-5091985
Last modified:  2012-12-03
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