Both single-machine and cloud-based VPSes are managed using a software program called a hypervisor. The machine that runs the hypervisor is called the host machine and the individual virtual private servers are called guest machines or guest instances. The hypervisor can start and stop the virtual machines and allocates system resources, such as CPU, memory, and disk storage to each VPS.
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This is a low cost option for the hosting company and they will usually offer some kind of data protection using a RAID system where data is copied across multiple disks. This is an entry level solution but one issue is that the server itself represents a single point of failure. It could be that the power supply fails which brings the server down for example.

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Sometimes you need more power than an entry-level web hosting service can provide. If you're looking to take your business online and want to build your website on a server that offers more power, stability, and flexibility than shared hosting, but you don't want to pay the higher cost of dedicated hosting, VPS, or virtual private server hosting, may be the perfect middle-of-the-road service tier for your business.

A VPS is not the same as a dedicated server, but it gives the illusion of being one. A good Web developer can do almost anything on a VPS that they would want to do on dedicated server, however, a VPS hosting plan is substantially less expensive, comes with technical support, and the hardware behind a VPS is not your responsibility. Sure, cheap servers can be acquired, but they will require a far larger overhead in terms of physical security and technical maintenance, security and support. Ultimately, a VPS can be the perfect solution when you need more flexibility and features than a shared hosting plan, but are not in the market for your own dedicated hosting server.

With a VPS, you receive all the power of Dedicated Server Hosting plus the ability to maintain your own set of services and customizable disk space. Here, you can also perform any desired actions from your control panel, without the need to contact our technical support team. With Shared Hosting, however, you have limited administrative access and are not able to customize software configurations. Learn more about the differences →


Partitioning a single server to appear as multiple servers has been increasingly common on microcomputers since the launch of VMware ESX Server in 2001. The physical server typically runs a hypervisor which is tasked with creating, releasing, and managing the resources of "guest" operating systems, or virtual machines. These guest operating systems are allocated a share of resources of the physical server, typically in a manner in which the guest is not aware of any other physical resources save for those allocated to it by the hypervisor. As a VPS runs its own copy of its operating system, customers have superuser-level access to that operating system instance, and can install almost any software that runs on the OS; however, due to the number of virtualization clients typically running on a single machine, a VPS generally has limited processor time, RAM, and disk space.[2]
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