IT04512: TPC-R DOES NOT SUPPORT SVC DEFAULT GRAIN SIZE OF 256 MB FOR INCREMENTAL FLASHCOPY VOLUMES

Tivoli Storage Productivity Center Refresh Pack 4
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
Fix Pack 5.2.5.1 (April 2015) for Tivoli Storage Productivity Center (withdrawn)
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 5.2.7.1 (February 2016) for Tivoli Storage Productivity Center

APAR status

• Closed as fixed if next.

Error description

• User created SVC incremental flashcopy session and found TPC-R
  only supports 64 MB grain size. This causes problems in terms of
   SVC memory usage since 64 grain size uses a lot more SVC memory
   to run than the default 256 grain size. User would like a
  tunable grain size so they can increase the grain size for
  incremental flashcopy volumes.
  

Local fix

• Use SVC to create and manage incremental flashcopy session
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users who manage SVC flash copy sessions with the            *
  * incremental option set                                       *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * | fix pack | 5.2.4-TIV-TPC-FP0000 - target 3Q 2014 |         *
  *                                                              *
  *                                                              *
  * http://www-01.ibm.com/support/docview.wss?&uid=swg21320822   *
  *                                                              *
  * The target dates for future fix packs do not represent a     *
  * formal                                                       *
  * commitment by IBM. The dates are subject to change without   *
  * notice.                                                      *
  *                                                              *
  * TPC-R does not allow changing of the grain size for flash    *
  * copy sessions. It will always use the default for the SVC    *
  * hardware types. If the incremental option is set TPC-R will  *
  * always use a grain size of 64. This apar will externalize    *
  * and allow the grain size setting to be changed to a valid    *
  * value for the svc via a properties file setting. This option *
  * will allow a global setting for all SVC session types and an *
  * option to control a single SVC FC session.                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * contact support to obtain the usage and setting of these     *
  * properties                                                   *
  ****************************************************************
  

Problem conclusion

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

• R510 PSY

     UP

• R520 PSY

     UP