IT16328: NO PERFORMANCE DATA DISPLAYS FOR VOLUMES RESIDING IN A NEWLY CREATED SVC STORAGE POOL.

IBM Spectrum Control 5.2.11 - Windows Server
IBM Spectrum Control 5.2.11 - Linux Server
IBM Spectrum Control 5.2.11 - AIX Server
IBM Spectrum Control 5.2.11 - Agent
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)

APAR status

• Closed as program error.

Error description

• Spectrum Control failed to detect any performance data for a
  newly created SVC storage pool, after
  volumes were migrated to that pool which are known to have I/O.
  When this occurred, Spectrum Control failed to create a new
  snapshot to reflect the new parent pool.
  Because of this, Spectrum Control is unable to report any
  performance for the volumes in this pool.
  Diagnosing this problem requires comparing the
  T_RES_STORAGE_VOLUME and T_RES_STORAGE_VOLUME_SNAPSHOT
  tables for one example volume known to exist in the newly
  created storage pool.  If its last
  UPDATE_TIMESTAMP value in the T_RES_STORAGE_VOLUME_SNAPSHOT
  table is older than expected (doesn't
  reflect current probe completion times) then this defect is
  likely at fault.
  RECREATE STEPS:
  Migrate volumes from one SVC storage pool to a new storage pool.
  Observe no performance reported for
  the new storage pool.
  ________________________________________________________________
  DB2 Version used for Server:    N/A
  The defect is against component:   5608TPC00
  Server/Manager build/release (TPC):   52A
  
  ________________________________________________________________
  Problem as described by customer:   SVC Storage Pool not showing
  any performance data
  Initial customer impact (low/med/high): high
  

Local fix

• Contact support
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Control and TPC 5.2.x users monitoring device   *
  * performance metrics                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * No performance data was displayed for volumes on a new       *
  * storage pool.  See ERROR DESCIRPTION.                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fix maintenance when available.                        *
  ****************************************************************
  Updated snapshot information was not being taken because the
  system incorrectly thought that a snapshot was already in
  progress.
  

Problem conclusion

• The fix provides additional error recovery for the situation
  leading to this.  The fix for this APAR is targeted for the
  following maintenance package:
  
  | refresh pack | 5.2-TIV-TPC-RP0011 - target August 2016
  
  Fixed in IBM Spectrum Control 5.2.11.
  
  http://www.ibm.com/support/docview.wss?&uid=swg21320822
  
  The target dates for future refresh 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

• PM
  

Fix information

• Fixed component name

  TPC

• Fixed component ID

  5608TPC00

Applicable component levels

• R52A PSY

     UP

• R520 PSY

     UP