Dynamic allocation for IMS databases

Use the dynamic allocation function to specify the JCL information for IMS databases in a library instead of in the JCL of each batch job or in the JCL for DBCTL.

If you use dynamic allocation, do not include JCL DD statements for any database data sets that have been defined for dynamic allocation. Check with the database administrator (DBA) or comparable specialist at to determine which databases have been defined for dynamic allocation.

Related Reading: For more information on the definitions for dynamic allocation, see the DFSMDA macro in IMS Version 15.6 System Definition.