Originally Posted by gideongallery

ok here is the best bet to avoid any downtime or getting banned

mirror the old site with the new server
Add the second server to the zone record for the domain in a round robin config.

This will load balance the servers between the two ip address.

take the primary server down and add the ip address to the second server.

you will end up with a single server with two ip address both assigning to the same network card.

remove the new ip address from the zone file.
once everything has propogated
remove the new ip address.