Reverting clusters to an earlier ONTAP release

In some cases, to transition a cluster to an earlier ONTAP release, you must perform a reversion. Reverting is always disruptive, and it requires planning, preparation, the reversion itself, and several post-reversion procedures.

Attention: Do not attempt to revert ONTAP by simply downloading and booting (or netbooting) a in an earlier release. If you do, you cannot boot the earlier target release. You must use the clustershell system node revert-to and nodeshell revert_to commands for the reversion process.