Upgrading an existing DB2 configuration

Before you begin upgrading your DB2® configuration, ensure that you have read and followed the instructions to prepare your CICS® IA environment and the DB2 considerations.

For more information, see Prepare your CICS IA configuration environment and DB2 considerations.

There are two methods to upgrade the DB2 tables:

Copy the previous CICS IA DB2 tables to a new database

If you choose to use this method, you must first create a new CICS IA DB2 database and then use DB2 utilities to UNLOAD from the previous database and LOAD into the new database.

Upgrade the previous CICS IA DB2 database to the new structure

If you choose this method, you update only the tables that have a different structure from the tables in your previous CICS IA version. This method is a single database migration method.
Note: CICS IA V5.3 does not provide jobs to port your existing collector VSAM files. You must load all of your VSAM data in to your existing DB2 tables before you proceed with the DB2 upgrade. CICS IA V5.3 provides the upgrade job for the Command Flow data from CICS IA V5.2 only.