This step creates a set of mirror libraries from the primary libraries. These mirror libraries are updated by the upgrade process and are later switched with the primary libraries. This switching method minimizes both down time and risk.
Select Minor Step 1, Create Mirror Libraries.
If necessary, use the 'A' command to change the DASD/SMS allocation attributes from those used during installation of the primary libraries, or the previous time this step was run.
Submit the job to create the mirror libraries.
Press PF3 (END) to return to the Minor Steps Selection panel.
