Planning to clone an IMS subsystem

The following sections cover the steps that you must take before you clone an IMS subsystem.

Before cloning IMS subsystems or databases, consider the following planning and decision-making issues.

Note: The BCSCLEAN command can be used to delete orphaned target catalog entries that were created by a previous run of the IMS Cloning Tool processing. Orphans are created when target volume contents are replaced. The BCSCLEAN command removes the catalog entries for data sets that were included in the last cloning process. Other catalog entries for data sets that are not involved with the cloning process remain. If these data sets could be recataloged in a subsequent cloning process they must be deleted before you run the subsequent cloning process.