PI74677: CHANGES TO DETECT ERROR CONDITIONS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• This enhancement includes the following changes to detect and
  handle potential error conditions:
  1. Add new keyword (CHECK_DATA) to provide additional
  validation of page structures.  The new keyword will have the
  following options:
  CHECK_DATA NO will skip all checks.
  CHECK_DATA WRITE will check the data page for error just before
  the page is written and/or output by the log apply component.
  CHECK_DATA OPERATION will check the data page for errors before
  and after every log record operation in addition to just before
  the page is written and/or output by the log apply component.
  2. In some cases a Change Accumulation job may end with a zero
  return code but the image copy produced may be incorrect.
  In these cases, DSN1COPY would report a Broken Page in the image
  copy.  This enhancement will add checks to produce appropriate
  error messages and return codes from the Change Accumulation
  job.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IBM DB2 Change Accumulation Tool    *
  *                 z/OS.                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: This enhancement includes the           *
  *                      following changes to detect and         *
  *                      handle potential error conditions:      *
  *                      1. Add new keyword (CHECK_DATA) to      *
  *                      provide additional validation of page   *
  *                      structures.  The new keyword will       *
  *                      have the following options:             *
  *                      CHECK_DATA NO will skip all checks.     *
  *                      CHECK_DATA WRITE will check the data    *
  *                      page for error just before the page is  *
  *                      written and/or output by the log apply  *
  *                      component.                              *
  *                      CHECK_DATA OPERATION will check the     *
  *                      data page for errors before and after   *
  *                      every log record operation in addition  *
  *                      to just before the page is written      *
  *                      and/or output by the log apply          *
  *                      component.                              *
  *                      2. In some cases a Change Accumulation  *
  *                      job may end with a zero return code     *
  *                      but the image copy produced may be      *
  *                      incorrect. In these cases, DSN1COPY     *
  *                      would report a Broken Page in the       *
  *                      image copy.  This enhancement will add  *
  *                      checks to produce appropriate           *
  *                      error messages and return codes from    *
  *                      the Change Accumulation job.            *
  ****************************************************************
  * RECOMMENDATION: APPLY the PTF.                               *
  ****************************************************************
  Code has been changed to correct this condition.
  

Problem conclusion

• APPLY the PTF.
  

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:

  UI46510

Modules/Macros

• GGC$ADM2 GGC$ALLO GGC$BDSN GGC$BMSG GGC$BULD
  GGC$BUTH GGC$DLCR GGC$JBRK GGC$JPRU GGC$MAIN GGC$MCLN GGC$MEPJ
  GGC$MEPL GGC$OPRU GGC$QBLD GGC$SINF GGC$TSQJ GGC$UCPN GGC$UCPO
  GGC$UIMG GGC$UOPT GGC$UPRC GGC$UPRD GGC$XMLB GGC$XMLJ GGC#AMIN
  GGC#ASYS GGC#BPRI GGC#CARD GGC#CHKR GGC#CMTU GGC#CNTL GGC#CONT
  GGC#CPNT GGC#CPOL GGC#DSPL GGC#EMCS GGC#ENQS GGC#ENVF GGC#FCPY
  GGC#ICAL GGC#IDCF GGC#LGAA GGC#LGAC GGC#LGAF GGC#LGAI GGC#LGAP
  GGC#LOGR GGC#LRDR GGC#LRD6 GGC#MAIN GGC#MLOG GGC#OBRP GGC#PRNG
  GGC#RANG GGC#RI   GGC#RPRP GGC#RUNT GGC#SUBD GGC#SUBX GGC#SYSC
  GGC#UPRI GGC#UTOB GGC#WRIT GGC#XMLD GGC#XMLS GGC@BULD GGC@DISC
  GGC@MAIN GGC@POBJ GGC@RDCL GGCGGCC  GGCHUOPT GGCIALI  GGCIDCAM
  GGCIENQS GGCIGRS  GGCIHFP  GGCIHLI2 GGCIPROT GGCISORT GGCISOR2
  GGCISOR3 GGCISOR5 GGCIUCB  GGCIUTLB GGCIVSAD GGCIVSAS GGC09
  GGC092E  GGC093E
  

Fix information

• Fixed component name

  DB2 CHANGE ACCU

• Fixed component ID

  5655F5500

Applicable component levels

• R310 PSY UI46510

     UP17/04/25 P F704

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.