Step 6. Customize and test the target system

If upgrading, perform the post-first-IPL migration tasks for z/OS®. These migration actions were identified in Step 1 and have a timing of "after the first IPL of z/OS V2R1" in z/OS Migration.
Reference information: z/OS publications (http://www.ibm.com/eserver/zseries/zos/bkserv/)
If upgrading, perform the post-first-IPL migration tasks for IBM® middleware, IBM applications, and ISV products. These migration actions were identified in Step 1.
Reference information: IBM product publications and ISV publications.
If installing for the first time, perform the customization tasks that you identified in Step 1.
Reference information: z/OS publications (http://www.ibm.com/eserver/zseries/zos/bkserv/), IBM product publications, and ISV publications.
IPL the customized system. Follow local procedures.
Test the customized system. Use the test cases that you identified in Step 1.