It is never an easy decision to decide to purchase or lease a dedicated server. The increased cost and responsibility is more than some are willing to take on, unless they absolutely must. Virtual private servers (VPS) are a good way to have the best of both worlds: the autonomy of a dedicated server, without the huge cost and responsibility.
A VPS is essentially a virtual machine running on a server with its own separate operating system (often identical to the larger server’s), giving the user full system administrator access, including a root login. But rather than having control over the entire server, the VPS users control their own mini servers. Depending on the setup, a dedicated server can host numerous VPS containers. For all intents and purposes, the VPS appears to be a full server to the users.
The limitation of a <a href=”http://www.atlantic.net/vps/vps-vs-cloud.html” target=”_blank”>VPS</a> is usually one of resources. You must share the server with the other VPS users, and this means that you are only using a percentage of the full server’s hardware. As your websites grow, you may find that you need more memory, disk space, or processing power, and that simply may not be possible with your VPS. At some point, you will reach a ceiling, where the hosting provider will not give you anymore resources, as it would be unfair to the other VPS users. That is when you know it is time to migrate to a full dedicated server.