PQ96777: ENHANCEMENT TO ALLOW FPB DEDBPC TO ACCEPT LBI (LARGE BLOCK INTERFACE) IMAGE COPY DATA SET.

APAR status

• Closed as new function.

Error description

• Enhancement to allow FPB DEDB PC to accept the LBI (Large Block
  Interface) image copy data set produced by the IMS Database
  Image Copy Utility (DFSUDMP0 - standard image copy) or the
  Database Image Copy 2 Utility (DFSUDMT0 - IC2 image copy).
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All FP Basic Tools Version 2 Release 1       *
  *                 users of DEDB Pointer Checker.               *
  *                 (FMID: H31A210)                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Forward Fit of APAR PQ96773.            *
  *                      DEDB Pointer Checker enhancement to     *
  *                      accept the LBI (Large Block Interface)  *
  *                      image copy data set.                    *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  DEDB Pointer Checker enhancement to accept the LBI (Large Block
  Interface) image copy data set produced by the IMS Database
  Image Copy Utility (DFSUDMP0 - standard image copy) and the
  Database Image Copy 2 Utility (DFSUDMT0 - IC2 image copy).
  

Problem conclusion

Temporary fix

Comments

• This enhancement allows FPB DEDB PC to accept the LBI (Large
  Block Interface) image copy.
  
  When LBI or BLKSIZE not specified image copy is produced by
  the IC2 Utility, the BLKSIZE fields in DCB and DCBE are zero,
  so FPB DEDB PC has been modified to set correct BLKSIZE to
  these image copy to accept it.
  
  But under following conditions, FPB DEDB PC can not process
  a LBI image copy, and a IC2 image copy produced without BLKSIZE
  parameter specification.
  
  1. FPB DEDB PC runs on operating system which does not support
     LBI.
  2. A LBI compressed image copy produced by the Image Copy
     Extensions.
  
  The module FABAINIT and FABASNAP has been modified.
  The open exit checks the attribute of the input image copy
  and the LBI environment. If input is a LBI image copy, then
  the exit prepares to accept it.
  BUILDRCD macro is no longer issued for QSAM VBS.
  
  DA1DCB00 has been modified to add DCBE in DFSUDMP DCB to accept
  LBI image copy.
  
  FABUIC20 has been modified as follows:
  If input is a IC2 LBI data set, then the compressed flag is set
  on.
  DCBLRECL field is considered to have greater than 32760 value.
  
  FABAIC20 was reassembled to reflect modified FABUIC20.
  
  DA1WRK10 has been modified.
  The work fields for BUILDRCD macro are changed to reserved
  fields.
  
  FABADA1 has been modified.
  The logic to FREEMAIN work fields for BUILDRCD macro are
  removed.
  
  ========================
  = Documentation change =
  ========================
  IMS High Performance Fast Path Utilities for z/OS
  User's Guide Volume 2: Fast Path Basic Tools Version 2 Release 1
  (SC18-9238-00)
  
  Part 2. DEDB Pointer Checker
   Chapter 3. Using DEDB Pointer Checker
    FABADA1 JCL
  
  In the Note section of the DFSUDUMP DD,
  following statement in item 2 should be deleted;
  
  The block size on the DD statement must be equal or smaller
  than 32,760 if you use a tape device as an input device.
  
  following item 4 should be added;
  
   | 4.  LBI (Large Block Interface) image copy can be specified
   |     on this DD statement, but under following conditions LBI
   |     image copy can not be processed:
  
   |       DEDB Pointer Checker runs on operating system which
   |       does not support LBI.
   |       A LBI compressed image copy  produced by the IMS Image
   |       Copy Extensions.
  
  ---------------------------------------------------------------
  FABADA4 JCL
  
  In the Note section of the DFSUDUMP DD,
  following statement in item 2 should be deleted;
  
  The block size on the DD statement must be equal or smaller
  than 32,760 if you use a tape device as an input device.
  
  following item 4 should be added;
  
   | 4.  LBI (Large Block Interface) image copy can be specified
   |     on this DD statement, but under following conditions LBI
   |     image copy can not be processed:
  
   |       DEDB Pointer Checker runs on operating system which
   |       does not support LBI.
   |       A LBI compressed image copy  produced by the IMS Image
   |       Copy Extensions.
  
  
  Appendix N. Fast Path Basic Tools - Messages and Codes
    FABA messages
  
    Following new messages should be added;
  --------------------------------------------------------------
    FABA3605E - LARGE BLOCK SIZE IMAGE COPY DATA SET IS NOT
                SUPPORTED UNDER THIS OPERATING SYSTEM
  
    Explanation: The DEDB Pointer Checker detected that one of
    following image copy data set specified for input could
    not be processed on the operating system which  does not
    support LBI.
  
         - IMS standard LBI image copy data set
         - IMS standard LBI image copy 2 data set
         - IMS standard image copy 2 data set on TAPE which was
           produced without BLKSIZE parameter specification
         - IMS standard LBI image copy data set produced by
         the ICE
  
    System Action: The DEDB Pointer Checker issues a U3605 abend.
  
    Programmer Response: You have performed the DEDB Pointer
    Checker on system that does not support LBI. Rerun the job on
    the system that supports LBI.
  
  --------------------------------------------------------------
    FABA3606E - LARGE BLOCK SIZE COMPRESSED IMAGE COPY DATA SET
                GENERATED BY ICE IS NOT SUPPORTED
  
  
    Explanation: The DEDB Pointer Checker detected that the
    compressed LBI image copy data set produced by the ICE was
    specified for input. It is not supported.
  
    System Action: The DEDB Pointer Checker issues a U3606 abend.
  
    Programmer Response: Specify the IMS standard image copy
    dataset and rerun the job.
  

APAR Information

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

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

  UQ95912

Modules/Macros

•    DA1DCB00 DA1WRK10 FABADA1  FABAIC20 FABAINIT
  FABASNAP FABUIC20
  

Fix information

• Fixed component name

  IMS HP FP UTILI

• Fixed component ID

  5655K9400

Applicable component levels

• R210 PSY UQ95912

     UP04/12/13 P F412