PM40201: IMS DEDB FAST RECOVERY ENHANCEMENT IN SUPPORT OF SOME IMS V12 APARS FOR DFSFDLW0

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• IMS DEDB Fast Recovery enhancement to support the following IMS
  V12 APARs:
  - PM26393 (PTF is UK62042 )
  - PM33361 (PTF is UK66127 )
  - PM33270 (PTF is UK68108 )
  These are various DFSFDLW0 problems for IMS V12 that need to be
  addressed.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS DEDB FAST RECOVERY Version 2         *
  *                 Release 2 (FMID=H1J2220) users in IMS V12.   *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR is DFR version for following  *
  *                      IMS V12 APARs:                          *
  *                      - PM26393 (PTF is UK62042)              *
  *                      - PM33361 (PTF is UK66127)              *
  *                      - PM33270 (PTF is UK68108)              *
  *                      These are various DFSFDLW0 problems for *
  *                      IMS V12 that need to be addressed.      *
  *                      addressed.                              *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  - PM40201 for IMS DEDB Fast Recovery
  The following problems under IMS V12 are fixed by this APAR:
  *
  1. IMS V12 PTM to APAR conversion.
  2. If it is found that flags for I/O error and end of file are
     not being initialized between the primary and secondary WADS,
     causing DFR to skip reading the secondary WADS with a
     MSGDFR3100E message.
  3. If there is an I/O error on a WADS, DFR ends with abend code
     of S001-04.
  

Problem conclusion

Temporary fix

Comments

• The following module has been modified.
  *
  DFRFDLWC - This module was changed as follows:
             . The block sequence comparison has been changed to
               use the correct register.
             . It was changed to retrieve data from both the
               primary and secondary WADS before rebuilding
               block and padding the last block.
               Detection of duplicate data from the secondary
               WADS has been corrected.
             . The flags for I/O error and end of file were reset
               before reading the secondary WADS.
             . An EADSCB=OK keyword was added to a model for a
               WADS DCBE.
             . An EROPT=ACC keyword was added to a model for a
               WADS DCB.
             . A SYNAD, EOD and ABEND exits have been correctly
               set for the both WADSs.
  *
  ========================
  = DOCUMENTATION CHANGE =
  ========================
  IMS DEDB Fast Recovery for z/OS Version 2 Release 2 User's Guide
  and Reference (Document Number: SC27-0928-04) should be changed
  as follows.
  ================================================================
   8.0 Troubleshooting
    8.4 Messages
  .
    Descriptions for the following messages have been changed:
  .
       DFR3100E xxxxxxxxxxx ERROR IN WADS DDNAME=ddname
       DFR3100E xxxxxxxxxxx ERROR IN WADS PROCESSING
  .
       Explanation: ...
  .
  |    System action:
  |      If the error occurred on a dual WADS, the job continues
  |      using the alternate data set.
  |      If errors occurred in both WADSs, or the mode is a
  |      single WADS, the job ends with an abend code of U3100.
  .
       User Response:
  |      If the job has abnormally ended, check whether DD
  |      statement for WADS is specified correctly.
         If there is any error, correct it and rerun the job.
         If there is no error in the DD statement, contact IBM
         Software Support.
  *
  

APAR Information

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

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

  UK68200

Modules/Macros

•    DFRFDLWC
  

Fix information

• Fixed component name

  DEDB FAST RECOV

• Fixed component ID

  5655E3200

Applicable component levels

• R220 PSY UK68200

     UP11/05/31 P F105

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.