Cleaning up DFSMDA members and HIDAM primary index DBDs

HALDB databases use information stored in the DBRC RECON data set to enable dynamic allocation of the database data sets and do not use DFSMDA members. After the conversion process is complete and you are certain you will not need to revert the database to its non-HALDB state, you can delete the DFSMDA members.

IMS obtains the information that is required to generate the PHIDAM primary index from the PHIDAM DBD. If you converted a HIDAM database to a HALDB PHIDAM database, after the conversion process is complete and you are certain that you will not need to revert the database to its non-HALDB state, you can discard the DBD for the primary index of the old HIDAM database.