OA50061: POTENTIAL DATALOSS WHEN USING QSAM TO WRITE TO A ZEDC COMPRESSEDDATASET AND THERE IS NO ROOM IN THE CURRENT EXTENT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• During creation of a new extent during CLOSE processing, any
  user blocks that have not been compressed and written out to the
  zedc compressed dataset yet will not be written out.
  
  This does not apply to BSAM processing since all outstanding
  WRITE requests must be CHECK'd for completion before CLOSE is
  issued.
  
  zEDC/k
  

Local fix

• ++APAR is available and requires an IPL
  
  Server:    testcase.boulder.ibm.com
  Directory: /fromibm/mvs
  DSN:       AA50061.HDZ1D10  (z/OS 1.13)
             BA50061.HDZ2210  (z/OS 2.1)
             CA50061.HDZ2220  (z/OS 2.2)
  DSORG:     PS
  RECFM:     FB
  LRECL:     80
  BLKSIZE:   32720
  
  Fix will remain on server for 5 days. Please contact Level2
  support if fix is not seen on server.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users writing to SAM extended format zEDC    *
  *                 compressed data sets using QSAM.             *
  ****************************************************************
  * PROBLEM DESCRIPTION: The potential exists for data loss      *
  *                      when writing to a zEDC compressed       *
  *                      data set using QSAM when CLOSE is       *
  *                      issued and there exists a partial       *
  *                      QSAM buffer that has not yet            *
  *                      been written, and all allocated         *
  *                      space in the data set is filled.        *
  *                      In this case the unwritten partial      *
  *                      buffer may not be written after         *
  *                      CLOSE processing obtains the new        *
  *                      extent for the data set.                *
  *                      The problem does not apply to           *
  *                      BSAM or other access methods.           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• Problem has been corrected
   KEYWORDS: ZEDC/K
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UA81134 UA81135 UA81136

Modules/Macros

• IGG0201B
  

Fix information

• Fixed component name

  BASE ACCESS MET

• Fixed component ID

  5695DF102

Applicable component levels

• RD10 PSY UA81134

     UP16/04/05 P F604 Ž

• R210 PSY UA81135

     UP16/04/05 P F604 Ž

• R220 PSY UA81136

     UP16/04/05 P F604 Ž

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.