PI74471: REMOVAL OF ABEND U0711 RC28 FOR INCOMPATIBLE UNIT OF RECOVERY STATUS BETWEEN IMS AND RRS DURING IMS RESTART.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Currently IMS ABENDs during restart (/ERE) with U0711 RC=28 when
  there is an incompatible unit of recovery status between IMS and
  RRS for the following cases:
  RRS InCommit / IMS InFlight
  RRS Indoubt  / IMS InFlight
  RRS Indoubt  / IMS InPhase 2
  
  To avoid the ABEND the IMS must be manually scrubbed or restart
  IMS with RRS=N and then clean up the Unit(s) of Recovery on the
  RRS side.
  
  IMS should be able to tolerate this incompatible state and
  provide at a minimum a message to report the mismatch of state
  and include the RRS Unit of Recovery ID (URID) and the IMS
  Recovery Token (RTOKEN).
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IMS V14 users running with RRS=Y.                            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * An incompatible state of recovery between IMS and RRS        *
  * results in an IMS ABEND U0711 with reason code x'28' during  *
  * IMS emergency start (/ERE).                                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * INSTALL CORRECTIVE SERVICE FOR APAR/PTF                      *
  ****************************************************************
  There are rare cases when the state of the unit of recovery
  (UOR) is different between IMS and RRS. Some of these
  incompatible states of recovery between IMS and RRS can result
  in an IMS ABEND U0711 with reason code x'28' during IMS
  emergency start (/ERE).
  

Problem conclusion

• Module DFSRRSI0 has been enhanced to issue a new message,
  DFS0745E, instead of issuing an ABEND U0711 with reason code
  x'28'.
  
                   --------------------------
                    DOCUMENT CHANGES FOLLOW:
                   --------------------------
  
  GC19-4224
  GC194224
  Release and Planning Guide
  
  Please add an entry under "IMS system enhancements" of the
  release and planning guide for the following topic:
  
  Removal of IMS ABEND U0711 reason code x '28'.
  
  IMS ABEND U0711 with reason code x '28' is being replaced with
  the message DFS0745E when an incompatible state of a Unit of
  Recovery (UOR) is detected during UOR synchronization. UOR
  synchronization is performed whenever IMS and RRS need to
  establish or reestablish communication with one another.
  
  
  
  GC18-4221-00
  GC18422100
  Messages and Codes, Volume 3: IMS Abend Codes
  
  Please make the following documentation change under IMS
  messages and codes -> IMS abend codes -> IMS abend codes 0701 -
  0750.
  
  Change:
  For ABEND U0711, please remove Reason code x '28' and its
  explanation from the section under "DFSRRSI0:".
  
  
  
  GC18-4219-00
  GC18421900
  Messages and Codes, Volume 1 : DFS Messages
  
  Please add the new message below to the messages and codes
  manual under IMS messages and codes -> DFS messages -> DFS
  messages, DFS701I - DFS0750I.
  
  New Message text:
  DFS0745E RRS HOLDS AN aaaaaaaa UOR FOR IMS STATE: bbbbbbbb,
  URID=xxxxxxxxxx TOKEN=yyyyyyyyyy
  
  Message Explanation
  Due to an error in either IMS or Resource Recovery Services
  (RRS), the last recorded state in IMS for a Unit of Recovery
  (UOR) is incompatible with the last recorded state for the UOR
  in RRS. The following table shows the possible incompatible UOR
  states that will trigger this message to be issued.
  -------------------------
  | RRS State | IMS State |
  -------------------------
  | INDOUBT   | INFLIGHT  |
   -----------------------
  | INDOUBT   | PHASE 2   |
   -----------------------
  | INCOMMIT  | INFLIGHT  |
   -----------------------
  
  The module DFSRRSI0 performs UOR synchronization between IMS and
  RRS and will issue this DFS0745E message after an incompatible
  state of a UOR is detected. The UOR synchronization code path
  can be driven whenever IMS and RRS need to establish or
  reestablish communication with one another.
  
  When IMS detects incompatible states for a UOR during IMS
  emergency restart (/ERE.), IMS continues with emergency restart
  processing and the appropriate BACKOUT or COMMIT exit routine is
  invoked.
  
  Explanation of codes that are included in the message
  aaaaaaaa
     Is the state of the unit of recovery (UOR) from the point of
  view of RRS.
     The value is either "INCOMMIT" or "INDOUBT".
  
  bbbbbbbb
     Is the state of the unit of recovery (UOR) from the point of
  view of IMS.
     The value is either "INFLIGHT" or "PHASE 2".
  
  xxxxxxxxxx
     The RRS unit of recovery identifier (URID).
  
  yyyyyyyyyy
     The IMS recovery token.
  
  System action
  Processing continues.
  
  Output destination of message
  MTO and System console
  
  User Responses
  Contact IBM Software Support and provide the RRS trace, the IMS
  log, and the output of the RRS ISPF panels.
  
  The RRS URID and IMS recovery token are supplied in the message.
  Use these to examine the RRS ISPF panels and the IMS log to
  determine the extent of a possible batch recovery.
  
  Problem determination
  N/A
  
  Module
  DFSRRSI0
  
  Related information
  N/A
  

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:

  PI82840 UI48431

Modules/Macros

• DFSRRSI0
  

Fix information

• Fixed component name

  IMS V14

• Fixed component ID

  5635A0500

Applicable component levels

• R400 PSY UI48431

     UP17/07/14 P F707

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.