For me with a couple hundred sites, considering fully managed servers, what are your personal experiences in terms of a solution provider that can keep such a system without hours of downtime in case of a disaster?
I know load balancing for such a case is out of the question due to costs, etc.
What I have done is have a backup web server and sync it once a day (with my control panels restore utility) and both servers are on same switch. So if I have a really critical problem that requires OS reload, etc. and can take 2, 3 hours, I have the option of putting my main server's IP on my backup machine (even it its 1 day or a few hours behind).
Ive see other options like Acronis disk image.
Anyways, it has to be fully managed. Any ideas?