In the hosting field, cloud architecture refers to employing different web servers for each and every service that's a part of the hosting service. In other words, your files, databases and e-mails will not run on the same machine, but on separate ones. Such a setup leads to higher uptime and improved overall performance as only one type of system processes will run on the server, so the system resources will be utilized as well as possible. Various web hosting service providers these days advertise their cloud services, but what they supply is not true cloud architecture for the reason that the hosting control panels they use are not designed to function with anything different from an individual server. If everything runs on one machine, a trouble with a single service can take the entire server offline. In this light, when you are searching for cloud hosting, you should check if the service you'll receive is truly a cloud one or whether it is a marketing trick.