Converting IMS control blocks to control statements

To convert DBD/PSB/ACB control blocks back into IMS™ DBDGEN/PSBGEN utility control statements by using the DBD/PSB/ACB Reversal utility, you must prepare JCL for the DBD/PSB/ACB Reversal utility and submit the job.

About this task

Sample JCL for the DBD/PSB/ACB Reversal utility is in the SHPSJCL0 library, member FABLIVP1. You can modify this sample JCL and then use it to run the utility.

Procedure

In the DBD/PSB/ACB Reversal JCL, code the EXEC statement and DD statements.
You can use the Reversal Site Default Generation utility to set your own default values for the SYSIN control statements.

To create a DBD/PSB/ACB Mapper input, specify the MAPOUT DD statement.
See the following topics for additional information:
- For the format of the EXEC statement and the list of DD statements, see JCL requirements for the DBD/PSB/ACB Reversal utility.
- For a description about the Reversal Site Default Generation utility, see Reversal Site Default Generation utility overview.
- For an instruction to use the Reversal Site Default Generation utility, see Setting site default values for the DBD/PSB/ACB Reversal utility.
In the SYSIN data set, code the control statements for the DBD/PSB/ACB Reversal utility.
See Control statements for the DBD/PSB/ACB Reversal utility.
Submit the job.
Check the output data sets that are generated.
See Output from the DBD/PSB/ACB Reversal utility.