You can have the servers down for 2 hours with the Forest FSMO roles and/or the Domain FSMO roles for cleanup without concern.  It would become more of an issue if for a day or more.  Also bear in mind what each FSMO roles does since each is unique to a domain or the entire forest so that you don't rely on those things at the time of the cleanup.  One other consideration is that the three domain roles are easier to transfer but don't worry about them for scheduled maintenance of as short as 2 hours.
 
Chuck Gafford
Systems Architect
Unisys

Reply via email to