PI08656: U0845 NOT AN IMS RPL, RUNNING BTS IN DBB MODE.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• AbendU0845 "Not and IMS RPL" using BTS in DBBBATCH mode.
  Under DBBBATCH mode, BTS uses the UNLD call between each BTS
  call, to do cleanup of locks and blocks.
  Under V12 there are changes made for assignment of DMB numbers
  in a new module called DFSLDMB0. Due to these changes, existing
  code in DFSBIND0 no longer works as expected during the UNLD
  call to remove DMBs.
  This causes an attempt to close a DMB twice, which causes VSAM
  to uses it's own RPL and PLH combo to attempt this. IMS in
  DFSDVSM0 catches this attempt, and fails it with U0845.
  Add search keywords E4084533 x'E4084533'
  

Local fix

• Contact BTS for temporary bypass.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS V12 users of Batch Terminal          *
  *                 Simulator ( BTS ) in a DBB batch region.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABENDU0845 occurs in module DFSDVSM0    *
  *                      when BTS issues an unload ( UNLD ) call *
  *                      in a DBBBATCH region.                   *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  ABENDU0845 occurs in module DFSDVSM0 when BTS issues an UNLD
  call in a DBB batch region.  BTS uses the UNLD call at the end
  of each transaction.  During an UNLD call VSAM attempts to close
  the database twice due to incorrect DMB numbers assigned in
  module DFSLDMB0.  Incorrect DMB numbers are assigned when module
  DFSBIND0 is called repeatedly with each BTS transaction.  With
  each call to module DFSBIND0 the DMB table ( SCDLDMBT ) is
  reused causing DMB numbers to be assigned to DMBs that do not
  correspond to the DMB table.  When the DMB table is reused in
  the next BTS transaction bit positions, which represent DMBs in
  use, are enabled from the prior BTS transaction.  When this
  occurs DMB numbers are assigned to DMBs that do not correspond
  to the DMB bit table and therefore cause a U0845 during database
  close.
  

Problem conclusion

• GEN:
  KEYWORDS:
  
  *** END IMS KEYWORDS ***
  
  ************
  * DFSBIND0 *
  ************
  
  Code is added in module DFSBIND0 after label IND2000 to
  initialize the DMB table by issuing an INIT function call to
  module DFSLDMB0.
  
  ***********
  * DFSLDMB *
  ***********
  
  Code is added to macro DFSLDMB to add function INIT.
  
  ************
  * DFSLDMB0 *
  ************
  
  Code is added to module DFSLDMB0 to add function INIT.  This
  function will initialize an existing DMB table.  The
  initialization will include clearing the DMB table to zero and
  clearing words SCDDMBHI and SCDDMBLA.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  PI11333 UI15539

Modules/Macros

• DFSBIND0 DFSLDMB  DFSLDMB0
  

Fix information

• Fixed component name

  IMS V12

• Fixed component ID

  5635A0300

Applicable component levels

• R200 PSY UI15539

     UP14/03/04 P F403 ¢

Fix is available

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