Migration from 2.5 to 3.4

Hello.

In the next week I'm changing a couple of servers where 2.5 is running 
and I'm thinking of taking advance of this opportunity to migrate to 3.4.
I've never performed a replication before, though.

My idea would be:
_ set up the new server as replica;
_ set up the old as master;
_ call sync_client a few time;
_ firewall the old server so that it receives no changes from clients or 
MTA;
_ call sync_client the last time;
_ shut down the old server;
_ change the IP of the new server to be the same as the old one;
_ remove the replica settings.

Is this list correct?
Unfortunately I see the failover chapter is still missing from the docs...

  bye & Thanks
        av.

------------------------------------------
Cyrus: Info
Permalink: https://cyrus.topicbox.com/groups/info/T31d4933e422af363-Ma0274adf4943f871cad6fd70
Delivery options: https://cyrus.topicbox.com/groups/info/subscription