PK41535: IMS STATUS CODE = AO READING A DATA BASE RECOVERED WITH HPIO=Y WHEN RECOVERED DATABASE ALLOCATED WITH DIFFERENT BLOCKSIZE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When using HPIO=Y function of HP Image Copy for recovery,
  and pre-allocated database BLKSIZE and LRECL is diffrent
  from the IMS IC header information of the original DB, HPIC
  recovery writes incorrect records into recovered
  DB and the DB can not be read.  IMS Status AO or other read
  errors will be encountered.  Also, the new data base can use a
  lot more space if the BLKSIZE is bigger than the image copied
  one.
  

Local fix

• Allocate the new Data Base with identical LRECL and BLKSIZE as
  the original image copied data base.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS High Performance Image Copy for z/OS *
  *                 Version 4 Release 1 users ( FMID=H1J0410 )   *
  ****************************************************************
  * PROBLEM DESCRIPTION: HPIC Recovery function with HPIO=Y      *
  *                      writes invalid records then the         *
  *                      recovered DB is not accessible, when    *
  *                      BLKSIZE and LRECL pre-allocated DB is   *
  *                      different from IC header information of *
  *                      original DB.                            *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  HPIC Recovery function with HPIO=Y writes invalid records then
  the recovered DB is not accessible, when BLKSIZE and LRECL
  pre-allocated DB is different from IC header information of
  original DB.
  Because HPIC recovery function calculates the number of record
  per track with BLKSIZE number of pre-allocated dataset and makes
  incorrect record for writing.
  
  
  This APAR also fixes following problems;
  - HPIC V4R1 Image Copy function with HPIO=Y creates incorrect IC
    data set, when the dataset's BLKSIZE is different from its
    LRECL.
  - Although using HPIO=X, HPIC V4R1 Recovery function processes
    as if specified HPIO=Y. Because HPIC set internal parameter
    not for HPIO=X but for HPIO=Y.
  

Problem conclusion

• FABJOSAM has been modified to calculate record count per track
  with BLKSIZE in IC header at recovery time.
  
  FABJDPSN has been modified to regard as HPIO=N when the
  dataset's BLKSIZE is different from its LRECL.
  
  FABJMAIN has been modified to set HPIO=X parameter correctly.
  
  FABJDPS7, FABJDPS8, FABJDPS9 and FABJDPSA have been reassembled.
  

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:

  UK23309

Modules/Macros

• FABJDPSA FABJDPSN FABJDPS7 FABJDPS8 FABJDPS9
  FABJMAIN FABJOSAM
  

Fix information

• Fixed component name

  IMS HP IMAGE CO

• Fixed component ID

  5655K9600

Applicable component levels

• R410 PSY UK23309

     UP07/03/24 P F703 Ž

Fix is available

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