System migration considerations
There are as many different possible z/OS configurations as there are z/OS customers. As a result, it is impossible to provide a document that comprehensively describes all the considerations for migrating from one Application Developers Controlled Distribution (ADCD) release to another for every customer.
However, certain “good housekeeping” practices exist that can make it easier when you are ready to move to a new ADCD release or a new release of the 2017 Sysplex Extensions. This chapter describes those practices. ...
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