In the Internet hosting field, cloud architecture refers to using different web servers for every single service which is a part of the internet hosting service. In other words, your files, databases and emails will not run on the very same machine, but on separate ones. Such a configuration leads to higher uptime and much better overall performance as only a single type of system processes will run on the server, so the resources will be utilized as effectively as possible. A large number of service providers nowadays promote their cloud services, but what they supply is not actual cloud architecture for the reason that the hosting control panels they use are not designed to work on anything different from a single server. In case everything is run on one machine, an issue with just a single service can take the entire server offline. In this light, if you are looking for cloud hosting, you should check if the service you will get is really a cloud one or if this is a marketing trick.