When it comes to Internet hosting, cloud architecture refers to using an independent server for every single aspect of the Internet hosting service. Such a configuration leads to much better performance as one machine will be used only for file storage, another just for running databases, etcetera, thus different system processes will not run on the exact same machine. This will lessen the chance of system errors considerably and will allow your websites to operate faster, not mentioning the better uptime. When you are looking for this kind of service, you should make certain that you'll really find it since many companies advertise cloud web hosting packages, but the control panels they use are not designed to work in a real cloud and can function only on a single server. The trouble with using one machine is that in case one service goes down or generates high load, the entire server will almost certainly go offline, so your sites will no longer be accessible.