In the hosting field, cloud architecture means using different servers for each and every service that's a part of the web hosting service. In other words, your files, databases and emails will not run on the exact same machine, but on separate ones. Such a configuration contributes to higher uptime and much better overall performance since only one kind of system processes will work on the server, so the system resources will be utilized as efficiently as possible. Many web hosting service providers nowadays advertise their cloud services, but what they supply is not genuine cloud architecture for the simple reason that the Internet hosting control panels they use are not designed to operate with anything different from a single server. If everything runs using one machine, an issue with a single service may take the entire server offline. In this light, when you are searching for cloud hosting, you should verify whether the service you will receive is really a cloud one or if it is a marketing trick.