VPS has clear advantages for website hosting as it offers a huge level of flexibility over shared website hosting, without stretching your budget to a dedicated server. A VPS offers you an environment for development and testing for your website hosting. For example, you could choose to have a VPS dedicated to testing and a separate VPS running simultaneously for your live or production websites. Without the need for two physical servers you can safely debug software, install major changes and software updates in a secure environment without affecting your live websites. You can also use a VPS for back-up or file storage. It's easy to switch between virtual servers so you can protect and maintain website visibility online even while undergoing extensive development work.
Hostway|HOSTING Virtual Private Server technology allows you to create your own shared hosting platform. You can allocate bandwidth or storage to each site from anywhere using your web-based control panel. Host sites that use different content management systems or development languages independently. You can easily set up new sites in the control panel, or migrate sites from another server.
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.
The most common type of VPS is a web host. Many web hosting companies offer VPS hosting solutions as an alternative to shared hosting and dedicated hosting. A VPS sits in between the two options, usually in both performance and price. Like a shared host, a VPS may share the resources of a physical machine with other hosting accounts. However, a VPS is custom-configureable like a dedicated hosting solution it is isolated ("private") from other accounts.
The force driving server virtualization is similar to that which led to the development of time-sharing and multiprogramming in the past. Although the resources are still shared, as under the time-sharing model, virtualization provides a higher level of security, dependent on the type of virtualization used, as the individual virtual servers are mostly isolated from each other and may run their own full-fledged operating system which can be independently rebooted as a virtual instance.