For nonrelational sources, such as IMS databases, you must create data maps to define the sources for bulk data movement operations and to provide metadata for defining capture registrations and extraction maps for CDC. You create data maps in the PowerExchange Navigator client on Windows.
This article describes how to create a data map that uses the DL/1 BATCH access method to access an IMS source database. This method allows you to use DL/I or BMP access to the IMS database. Both access types require you to configure a netport job on the z/OS system.
After you define the IMS data map, you can override the access method later in the PowerCenter session properties for the IMS source or when configuring a database row test.
When you create an IMS data map, you import a DBD to define the IMS segments and their parent-child relationships. You then import a COBOL or PL/I copybook for each segment to describe the physical layout of the data in the segment.
You can use this article to create multiple-segment data maps. However, this article does not cover creating multiple-record data maps for IMS unload data sets