Hi @maj82 ,
We could move mailbox database to another volume, folder, location, or path on one server by using either the EAC or EMS, but unfortunately we cannot directly move the database to another server.
Currently moving the entire database to another Exchange server requires the servers to be in one DAG. And it is achieved by switching the mailbox database copy on another server to be in active mode. But as you know, Exchange servers on different Windows servers could not join one DAG, that is to say for a cross server migration, we could not move the entire database like how DAG does.
Kindly suggest you could do the migration on your weekends to reduce the impact of migrating users.
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