OA56018: ABEND S16E RC X'24' (DEC36) IN IDA0200S DURING DEBCHK DELETE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When processing a VSAM data set that is opened using the ISAM
  Interface in VSAM, an Abend S16E RC24 will occur after
  installing PTFs for new function apars OA53954, OA53955,
  OA55315 which require greater control of the DEB control block.
  
  Users Affected:
  Any users of old applications that were written for ISAM data
  sets, DSORG=IS.
  
  User Impact:
  An ABEND16E rc24 will occur when closing the data set because
  the call to delete the DEB does not specify the new requirement
  of UNLOCKDELETE to ensure integrity.
  
  History:
  The ISAM Interface in VSAM was added many years ago to VSAM so
  that programs that accessed ISAM data sets using an ISAM DCB
  could access VSAM data sets without the code in the program
  being changed. Adding the parameter AMP=AMORG was the minimum
  JCL requirement to process a VSAM data set that was converted
  from an ISAM data set at some point in the past.
  
  DEBCHK/K
  

Local fix

• If you do not run any ISAM programs, you are not affected by
  this issue.
  
  If you do run ISAM programs, you can ignore the ABEND16E's
  or apply the ++APAR which will be available by Sept 1,2018
  or remove the New Function PTFs.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  *  Users of ISAM Interface in VSAM.                            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  *  Abend 16E rc x'24' occurs during                            *
  *                      ISAM/VSAM Interface CLOSE.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  *  Apply PTF.                                                  *
  ****************************************************************
  Problem occurs because Common O/C/EOV has recently changed
  to obtain a exclusive lock for the DEB before ISAM/VSAM
  CLOSE then an abend occurs when ISAM/VSAM CLOSE failed
  to obtain the lock for the DEB when it trying to delete
  the DEB with DEBCHK TYPE=DELETE.
  

Problem conclusion

• ISAM/VSAM Interface was corrected to issue a
  DEBCHK TYPE=UNLOCKDELETE to delete the DEB and
  free the lock during CLOSE.
  

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:

  UA97298 UA97299 UA97300

Modules/Macros

• IDAICIA1 IDA0200S
  

Fix information

• Fixed component name

  DFSMS VSAM

• Fixed component ID

  5695DF106

Applicable component levels

• R230 PSY UA97298

     UP18/09/26 P F809

• R220 PSY UA97300

     UP18/09/26 P F809

• R210 PSY UA97299

     UP18/09/26 P F809

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.