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Identifying potential upgrade issues

Every Data ONTAP release family has unique upgrade requirements that you must understand before you decide to upgrade. Depending on your version of Data ONTAP, you might have to upgrade to an intermediate release before upgrading to the current release.

Before you upgrade, you must understand the following:

Because significant new features are introduced in each new Data ONTAP release family, you might encounter issues when upgrading to a new release family, especially if you are not upgrading from the immediately previous version of Data ONTAP.

For example, if you are upgrading from a release in the 8.0 family to the current 8.2 release, you must review and resolve upgrade issues associated with the 8.1 and 8.2 release families before upgrading to Data ONTAP 8.2 or later.

Be sure to consult the Release Notes for the upgrade target release for a complete listing of upgrade issues. If an intermediate upgrade is required, you should also consult the Release Notes for the intermediate release.

Note: It is a best practice to capture the output of the options command before beginning the upgrade and comparing it with the output after the upgrade. Doing so helps ensure that you are aware of important changes to options settings. For more information, see the "Summary of new and changed commands and options" section in the Release Notes for your upgrade target release.