To revert to an earlier Data ONTAP release, you must halt certain processes, install the target image, and enter the
revert_to command.
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Reverting Data ONTAP
To revert Data ONTAP, you must install the target release on your system and run the revert_to command.
Updating SP firmware
If your storage system includes a Service Processor (SP), you must verify that it is running the correct firmware version and update the firmware if it is not the correct version.