Migration step 4: Connect CICS to Db2 (optional)

To connect Db2 to CICS®, you need to disconnect and connect the CICS region.

About this task

A macro is supplied with CICS to define the connection between CICS and Db2 by using a resource control table (RCT).

Ensure that you coordinate the attachment facility connection with your CICS support group.

Procedure

To connect the CICS attachment facility:

  1. Recalculate space requirements for the CICS attachment facility.
  2. Define your CICS attachment facility parameters using the RCT.
  3. Update the CICS system tables.
  4. Update the CICS initialization JCL.
  5. Coordinate Db2 and CICS security if necessary.
  6. Prepare new CICS applications for Db2 if necessary.