PM09489: IMS DEDB FAST RECOVERY ENHANCEMENT IN SUPPORT OF IMS V9 APAR PK38704, IMS V10 APAR PK42406 AND IMS V11

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• IMS DFR enhancement to support IMS V9 APAR PK38704, (PTF
  UK24160), IMS V10 APAR PK42406 (PTF UK24231) and IMS V11.
  
  Also, IMS DEDB Fast Recovery enhancement in support of IMS V6
  APAR PQ08919 which is already included in IMS V9 or later.
  This APAR included the CAPDBCNT field as a part of every Type47
  log record entry.
  KEYWORDS: IMSV11TGT/K  IMSV10TGT/K
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS DEDB FAST RECOVERY Version 2         *
  *                 Release 2 (FMID=H1J2220) users in IMS V9,    *
  *                 V10 or V11.                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR is DFR version for IMS V9     *
  *                      APAR PK38704 (PTF is UK24160), IMS V10  *
  *                      APAR PK42406 (PTF is UK24231) and IMS   *
  *                      V11. Also, DFR in support of IMS V6     *
  *                      APAR PQ08919 which is already included  *
  *                      in IMS V9, IMS V10 and IMS V11.         *
  *                      - PK38704 and PK42406                   *
  *                      DFSBACK0 assumed that every entry in a  *
  *                      TYPE47 record represented an active     *
  *                      work unit. When it found an entry for   *
  *                      an inactive PST, it would pick up the   *
  *                      residual UOR and find no subsequent     *
  *                      log records for that PST.  It would     *
  *                      issue DFS2298A requesting earlier log   *
  *                      data so that it would have the log data *
  *                      for this apparently active work unit.   *
  *                      - PQ08919 for IMS V6                    *
  *                      APAR PQ07457 added additional data in   *
  *                      the dependent region entries of the 47  *
  *                      log record for protected conversations  *
  *                      which is only present if the region is  *
  *                      involved in a protected conversation.   *
  *                      In the change the field CAPDBCNT was    *
  *                      made a part of every entry, whereby     *
  *                      previously it was only part of a BMP    *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  - PM09489 for IMS DEDB Fast Recovery
  IMS APARs changed the format and the entries of the X'47' log
  record. The X'47' log record process of DFR was changed in the
  same manner of IMS APARs.
  . DFR uses a new flag, CAPRCD1, to verify that a complete
    active UOR list is obtained.
  . DFR tests each entry of X'47' log record for its status that
    is contained a copy of PSTSWR.
  . DFR includes the CAPDBCNT field as a part of every X'47' log
    record entry.
  

Problem conclusion

Temporary fix

Comments

• The following module and macro have been modified.
  (x = 9, A and B)
  *
  DFRLUORx - This module was changed as follows.
             . When DFR is not processing the first of a group of
               X'47' log records after the using checkpoint, DFR
               does not process the X'47' log record.
             . When the PSTSWR2 bit is set to the CAPSWR flag
               which shows that PST of the entry of the X'47' log
               record is active, DFR processes the entry.
             . In case the entry length of the X'47' log record is
               calculated, it is not dependent on the value of the
               CAPTYPE field (IFP, BMP, MPP, etc.), and the entry
               length for the numbers contained in the CAPDBCNT
               field is added.
  DFRRSCx  - The RSCD47R1 flag to indicate the first of a group
             of X'47' log records is already processed was added.
  *
  

APAR Information

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

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

  UK55124

Modules/Macros

• DFRLUORA DFRLUORB DFRLUOR9 DFRRSCA  DFRRSCB
  DFRRSC9
  

Fix information

• Fixed component name

  DEDB FAST RECOV

• Fixed component ID

  5655E3200

Applicable component levels

• R220 PSY UK55124

     UP10/03/13 P F003

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.