IT42463: PROBES FAIL FOR BROCADE SWITCHES MANAGED BY CIMOM IF THE CIMOM CHANGES ITS CREDENTIALS OR IT IS TEMPORARILY DOWN

IBM Spectrum Control 5.4.10.1 - Windows Server
IBM Spectrum Control 5.4.10.1 - Linux Server
IBM Spectrum Control 5.4.10.1 - AIX Server
IBM Spectrum Control 5.4.10.1 - Agents

APAR status

• Closed as program error.

Error description

• If the Brocade CIMOM becomes unreachable, either because it is
  down or its password has changed, at the next fabric/switch
  probe or discovery the relationship entries which link the CIMOM
  to the managed switches get deleted from the tables. The
  switches and fabrics lose their data source, and their probes
  fail. Changing the password for the CIMOM using Modify
  Connection of a switch or fabric does not work either. This
  later action will end with the error: "BPCUI0431E Failed to
  retrieve the list of managed devices"This kind of error
  accommpanies this problem:2022-11-08 13:56:00.267+0000 Exception
  (WBEMException: CIM_ERR_ACCESS_DENIED (HTTP 401 - Unauthorized))
   during CIM call
  enumerateInstances([root/brocade1:Brocade_SwitchFCPortStats,
  true, false, false, null])
   to CIMOM http://xxxxxxxxxx
  com.ibm.tpc.disk.common.CIM.CIMClientWrapper enumerateInsta
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Control users who monitor Brocade switches      *
  * through a CIMOM                                              *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * If the Brocade CIMOM becomes unreachable, either because it  *
  * is                                                           *
  * down or its password has changed, at the next fabric/switch  *
  * probe or discovery the relationship entries which link the   *
  * CIMOM                                                        *
  * to the managed switches get deleted from the tables. The     *
  * switches and fabrics lose their data source, and their       *
  * probes                                                       *
  * fail. Changing the password for the CIMOM using Modify       *
  * Connection of a switch or fabric does not work either. This  *
  * later action will end with the error: "BPCUI0431E Failed to  *
  * retrieve the list of managed devices"                        *
  *                                                              *
  * When the CIMOM's password gets changed, and Spectrum Control *
  *                                                              *
  * runs a probe or discovery with the old password, the links   *
  * between                                                      *
  * the switches and the CIMOM get broken, and the switch's      *
  * Modify                                                       *
  * Connection will not work anymore.                            *
  *                                                              *
  * The fix for this APAR is to display the following            *
  * informative message                                          *
  * for the switch's Modify Connection action:                   *
  *                                                              *
  * BPCUI0601I : The resource does not have a connection         *
  * configured.                                                  *
  * To add a connection to the resource, click Add Switch or Add *
  * Fabric.                                                      *
  *                                                              *
  * The Add action will run a discovery against the CIMOM and    *
  * repair the                                                   *
  * broken links.                                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Spectrum Control 5.4.10.1   [ 5.4.10.1-IBM-SC ]
  ( release target 2Q 2023 / June  )
  https://www.ibm.com/support/pages/node/359939
  
  The target dates for future releases do not represent a formal
  commitment by IBM. The dates are subject to change without
  notice.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  TPC

• Fixed component ID

  5608TPC00

Applicable component levels