PK06851: ENHANCEMENT IN SUPPORT OF IMS V8 APAR PQ58427 AND IMS V9.

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• IMS DEDB Fast Recovery enhancement in support of IMS V8 APAR
  PQ58427 (PTF's are UQ63452 and UQ63453) with PQ63408 (PTF's
  are UQ69637 and UQ69638) and IMS V9.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS DEDB FAST RECOVERY Version 2         *
  *                 Release 2 (FMID=H1J2220) users who use the   *
  *                 Nonrecoverable DEDB in IMS V8 and IMS V9.    *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR is DFR Version for IMS V8     *
  *                      APAR PQ58427 (PTF's are UQ63452 and     *
  *                      UQ63453) with PQ63408 (PTF's are        *
  *                      UQ69637 and UQ69638) and IMS V9.        *
  *                      - PQ58427                               *
  *                      The first change is to remove SDEP      *
  *                      support from Nonrecoverable DEDBs.      *
  *                      Due to the manner in which SDEP changes *
  *                      are hardened to DASD following          *
  *                      application syncpoint, SDEPs in a       *
  *                      NRDEDB are highly likely to be broken   *
  *                      (i.e. bad pointers) following a hard    *
  *                      crash of IMS or the operating system.   *
  *                                                              *
  *                      The second change is to change          *
  *                      Emergency Restart and XRF Takeover so   *
  *                      that NRDEDB AREAs that are found to     *
  *                      contain errors ARE NOT stopped and      *
  *                      marked recovery needed.                 *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  - PK06851 for IMS DEDB Fast Recovery
  Since CASTOUT process is not performed at the time of IMS
  system checkpoint, the Nonrecoverable local VSO Areas are not
  recovered. DFR changes the AREA status to recovery needed
  and outputs 'RCVNEED (NONRCV)' on DEDB AREA Status List.
  
  If DMACF0NE in DMACFLG0 was set during IMS Emergency Restart
  or XRF Takeover, DFR changes the AREA status to recovery needed
  and outputs 'RCVNEED (NONRCV)' on DEDB AREA Status List.
  

Problem conclusion

Temporary fix

Comments

• The following modules have been modified:
  DFRNFOP8 - This module checks whether the DMACF0NE flag was set.
  DFRNFCT8 - This module verifies integrity for the Nonrecoverable
             AREA.
  DFRNFOP9 - This module checks whether the DMACF0NE flag was set.
  DFRNFCT9 - This module verifies integrity for the Nonrecoverable
             AREA.
  

APAR Information

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

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

  UK04408

Modules/Macros

•    DFRNFCT8 DFRNFCT9 DFRNFOP8 DFRNFOP9
  

Fix information

• Fixed component name

  DEDB FAST RECOV

• Fixed component ID

  5655E3200

Applicable component levels

• R220 PSY UK04408

     UP05/06/14 P F506

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.