Welcome to www.carrefour-medical.com Web Hosting - Redundancy
and Failover Among the more useful innovations in computing,
actually invented decades ago, are the twin ideas of redundancy
and failover. These fancy words name very common sense concepts.
When one computer (or part) fails, switch to another. Doing that
seamlessly and quickly versus slowly with disruption defines one
difference between good hosting and bad. Network redundancy is
the most widely used example. The Internet is just that, an
inter-connected set of networks. Between and within networks are
paths that make possible page requests, file transfers and data
movement from one spot (called a 'node') to the next. If you
have two or more paths between a user's computer and the server,
one becoming unavailable is not much of a problem. Closing one
street is not so bad, if you can drive down another just as
easily. Of course, there's the catch: 'just as easily'. When one
path fails, the total load (the amount of data requested and by
how many wit