Considerations for the Recovery function (DFSURDB0 JCL)

The following considerations apply to using the Recovery function with IMS compatible JCL.

  • If DBRC=FORCE was specified on the IMSCTRL macro statement during the definition of the IMS system, DBRC is used during the execution of this utility.
  • If DBRC=YES was specified on the IMSCTRL macro statement during the definition of the IMS system, DBRC is used during the execution of this utility unless it is overridden by an N specified in the positional parameter for the DBRC on the execute statement.
  • If DBRC=NO was specified during the definition of the IMS system, DBRC is not used during the execution of this utility and not used to generate the JCL.
  • To run the Recovery function in an IMS-managed ACBs environment, the following requirements must be met:
    • The IMS catalog is registered to the DBRC RECON data sets.
    • If IMS HP Image Copy needs to access control blocks from the IMS catalog, CATALOG=YES and ACBMGMT=CATALOG are specified in the IMS Catalog Definition exit routine (DFS3CDX0).