Don’t confuse seizure of roles with transfer. Seizure should only be used in the event that the role holder has failed and cannot be brought back online; if the server is online and functional you should do a transfer. Any role that is transferred — not seized — can be returned to the server it was transferred from. When you seize a role, the original role holder thinks it still holds that role. If you bring it back online, there will be multiple holders of the role, and AD corruption could occur.
Seize roles ? windows server, 2003 / 2008
April 9, 2012