PI31796: BYPASS ENQ ON SOURCE DATABASE DATA SETS WHEN FUZZY-COPY(Y)

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• Bypass ENQ on source database data sets when FUZZY-COPY(Y)
  During database refresh, IMS Cloning Tool calls DFSMSDSS to
  perform the data set copies. DFSMSDSS attempts to ENQ the
  source data sets exclusively for the duration of the copy in
  order to guarantee integrity of the copy.
  With FUZZY-COPY(Y) IMS Cloning Tool sets a DFSMSDSS parameter
  to ignore if the ENQ attempt fails. But if the source data set
  is not allocated at the time the ENQ is attempted it most
  likely will be successful. This outstanding ENQ can cause a
  problem if a another user/job, like IMS, attempts to open the
  source data set.
  This change will prevent the ENQ from being held when
  FUZZY-COPY(Y) is specified even if the source data set is not
  allocated at the time the copy phase starts.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IMS Cloning Tool V1.2               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Bypass ENQ on source database data      *
  *                      data sets when FUZZY-COPY(Y)            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Bypass ENQ on source database data sets when FUZZY-COPY(Y).
  During database refresh, IMS Cloning Tool calls DFSMSDSS to
  perform the data set copies. DFSMSDSS attempts to ENQ the
  source data sets exclusively for the duration of the copy in
  order to guarantee integrity of the copy.
  With FUZZY-COPY(Y) IMS Cloning Tool sets a DFSMSDSS parameter
  to ignore if the ENQ attempt fails. But if the source data set
  is not allocated at the time the ENQ is attempted it most
  likely will be successful. This outstanding ENQ can cause a
  problem if a another user/job, like IMS, attempts to open the
  source data set.
  

Problem conclusion

Temporary fix

Comments

• This change will prevent the ENQ from being held when
  FUZZY-COPY(Y) is specified even if the source data set
  is not allocated at the time the copy phase starts.
  

APAR Information

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

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

  UI24412

Modules/Macros

•    GCLDFDSS
  

Fix information

• Fixed component name

  IMS CLONING TOO

• Fixed component ID

  5655U9100

Applicable component levels

• R120 PSY UI24412

     UP15/01/21 P F501

Fix is available

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