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If you do not need to save the current state of an instance and you can re-create it easily from a snapshot or image you can terminate it and re-create a new one yourself. Pausing then resuming or stopping and then restarting an instance will not cause it to more to a live migration node. Terminating it and recreating it will result in the new instance being on a live migration node.

If we are migrating your VM you can check its action log to tell when it has been migrated. The action log will have a couple of notes in it "migrate" and "confirm resize" after its migration is complete.