IT05159: SWITCH MANAGED THROUGH SNMP-ONLY GOES UNREACHABLE ONCE. ALL SUBSEQUENT PROBES SKIP THIS SWITCH. IT STAYS UNREACHABLE.

Tivoli Storage Productivity Center Refresh Pack 4
Fix Pack 5.2.5.1 (April 2015) for Tivoli Storage Productivity Center
Refresh Pack 5.2.6 (June 2015) for Tivoli Storage Productivity Center
Refresh Pack 5.2.7 (August 2015) for Tivoli Storage Productivity Center
IBM Spectrum Control V5.2.8 (December 2015)
IBM Spectrum Control V5.2.9 (February 2016)
IBM Spectrum Control V5.2.10 (May 2016)
IBM Spectrum Control V5.2.10.1 (July 2016)
IBM Spectrum Control V5.2.11 (August 2016)
IBM Spectrum Control V5.2.12 (November 2016)
IBM Spectrum Control V5.2.13 (March 2017)
IBM Spectrum Control V5.2.14 (May 2017)
IBM Spectrum Control V5.2.15 (August 2017)
IBM Spectrum Control V5.2.15.2 (November 2017)
IBM Spectrum Control V5.2.16 (March 2018)
IBM Spectrum Control V5.2.17 (May 2018)
Fix Pack 5.2.4 (November 2014) for Tivoli Storage Productivity Center
Fix Pack 5.2.4.1 (December 2014) for Tivoli Storage Productivity Center
Refresh Pack 5.2.5 (March 2015) for Tivoli Storage Productivity Center (withdrawn)
Fix Pack 5.2.7.1 (February 2016) for Tivoli Storage Productivity Center

APAR status

• Closed as program error.

Error description

• RECREATE:
  1. I have three Cisco switches added to my TPC Server managed
  through SNMP-only.  All three of these are connected in the same
  physical fabric.
  2. I ran several probes throughout the day with everything
  running fine.
  3. At some point, one of the switches must have been too slow to
  respond to SNMP queries, because this switch went unreachable on
  one of the probes.  I saw this in the logs:
  2014-10-23 05:19:37.374-0700 Agent <switch_IP>is not responding
  to FC MGMT MIB queries after 1 attempts.
  com.ibm.tpc.discovery.snmp.scanner.TopologyScanner getWWN with
  parms Process Processor (Thread-101)
  4. All Probes after this leave the switch in the unreachable
  state, even though in the Java legacy UI the SNMP Data Source
  status for this switch is Normal.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * TPC 5.x users with SNMP data sources for switches            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fix maintenance when available.                        *
  ****************************************************************
  

Problem conclusion

• The fix for this APAR is targeted for the following maintenance
  package:
  
  | refresh pack | 5.2-TIV-TPC-RP0004 - target November 2014
  
  http://www-01.ibm.com/support/docview.wss?&uid=swg21320822
  
  The target dates for future refresh packs or fix packs 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:

Modules/Macros

• FABRIC
  

Fix information

• Fixed component name

  TPC

• Fixed component ID

  5608TPC00

Applicable component levels

• R520 PSY

     UP

• R521 PSY

     UP

• R522 PSY

     UP

• R523 PSY

     UP