IT21670: FALSE ALERTS FOR MISSING SWITCH PORTS RECEIVED WHEN CIMOM IS UNREACHABLE.

APAR status

• Closed as suggestion for future release.

Error description

• When the CIMOM monitoring the switches and fabrics became
  unreachable, the status for the switch ports was changed to show
   them as missing.  This caused alerts to be generated indicating
   missing switch ports, but they actually were still online.  To
  maintain consistent behavior across devices, such as storage
  systems, the switch ports should not be set as undetectable when
   the CIMOM data source is not reachable.  Only the top level
  switches and fabrics should be updated as unreachable and
  generate alerts for the status change.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Control 5.2.x users monitoring fabrics and      *
  * switches via CIMOM                                           *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When the CIMOM monitoring the switches and fabrics becomes   *
  * unreachable, the status, in Spectrum Control, for the switch *
  * ports                                                        *
  * was changed to show them as missing. This caused alerts to   *
  * be                                                           *
  * generated indicating missing switch ports, but they actually *
  * were                                                         *
  * still online.                                                *
  *                                                              *
  * To maintain consistent behavior across devices, such as      *
  * storage                                                      *
  * systems, the switch ports should not be set as undetectable  *
  * when                                                         *
  * the CIMOM data source is not reachable.  Only the top level  *
  * switches and fabrics should be updated as unreachable and    *
  * generate alerts for the status change.                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fix maintenance when available                         *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following release:
  
  IBM Spectrum Control 5.3.0  |  5.3.0-IBM-SC   (release target
  Aug 2018)
  
  http://www.ibm.com/support/docview.wss?&uid=swg21320822
  
  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

Applicable component levels