I need to migration Exchange from 2003 to 2010. 300 users, 500GB mailbox store.
Moving from the main office to the colo. I will be building the 2010 in the colo that is 10hrs from the main office. The site-to-site VPN is 20Mbps.
What would be the best way to migrate?
1 - Migrate mailboxes over the VPN? THat would take a long time I take?
2 - Ask for a downtime, and move physically Exch2003 to the colo, istall it there, and migrate mailboxes while its there.
Any other options I can do?