This step enlarges primary libraries, to satisfy the upgrade free space requirements. This step processes only those libraries that do not have enough free space to proceed with the upgrade. Depending on the primary data sets and free space availability, you might need to submit the job several times until a successful termination. Running products are not impacted during the process, since at this phase they use the corresponding mirror libraries.

1. Select Minor Step 4, Enlarge Primary Libraries.
2. If necessary, use the 'A' command to set or change DASD/SMS allocation attributes from those used during installation of the primary libraries or the previous time that this step was run.
3. Submit the job to enlarge relevant primary libraries.
4. Press PF3 (END) to return to the Minor Steps Selection panel.