My customer's network has about 20 PCs on it. I have two servers with the DHCP Server role installed--an old one, which currently handles all DHCP requests, and a new one, which is presently unconfigured.
Given that this is a small, relatively unchanging network, can I migrate from one server to the other while clients are online and working, provided I do it quickly? I'd use the following procedure: export DHCP data from old server, stop DHCP server service on old server, import DHCP data on new server, authorize new server, deauthorize old server. I can't imagine this would interrupt client connectivity if done quickly, but perhaps I'm wrong?