In regards to web hosting, cloud architecture refers to using an individual server for each and every aspect of the hosting service. Such a configuration results in better performance because one machine will be used only for file storage, a different one just for running databases, and so on, which means that different system processes will not run on the very same machine. The latter will lessen the chance of system errors considerably and will allow your websites to operate faster, not mentioning the greater uptime. When you are looking for this type of service, you have to double check that you'll really get it since lots of companies advertise cloud hosting packages, but the control panels they use aren't designed to function in a true cloud and can work only on a single server. The issue with using a single machine is that in the event that one service goes down or generates high load, the whole server will possibly go offline, so your sites will no longer be accessible.