I have 2 servers,one new and one old and want to transfer half the sites to the new server to share the load.
If I set up a dns cluster with the two servers and transfer the accounts from one server to the other, would it cause any issues and would the dns changes happen instantly?
My theory is that if I warn customers of possible down time, but can do it in just the time it takes to transfer the sites and delete the old, with the dns going straight to the new server, then many customers may not even notice the change over had happened.
If I set up a dns cluster with the two servers and transfer the accounts from one server to the other, would it cause any issues and would the dns changes happen instantly?
My theory is that if I warn customers of possible down time, but can do it in just the time it takes to transfer the sites and delete the old, with the dns going straight to the new server, then many customers may not even notice the change over had happened.