We are using User Profile Replication Engine http://technet.microsoft.com/en-us/library/cc663011.aspx to transfer information from old userprofile service to new userprofile service.
Anoyne else experiencing problems when replicating user profiles with large amount of users ex 60.000+ users? The problems seems to be occur when a profile has lots of colleagues which need to be replicated. For example this may take up to 17 minutes for user with 190 colleagues. Some users will also have more colleagues. This is 5 sec for each colleague. The replication therefore takes for ever and never completes. Any suggestions or people who have experienced the same?