Re: domain controller is restarted
You can argue on semantics (and downvote) but each of the FSMO roles can run on only one DC per forest/domain (some are per forest some per domain) as you clearly know.
My reply was about the "only one DC" which clearly was not true in the case of Ops Masters. Of course they should be transferred out before boot but the OP did not mention it.
Biting the hand that feeds IT
