High Performance Enterprise
Linux & Windows VPS

1.) What is the main difference between dedicated hosting and VPS hosting?
VPS hosting, also known as Virtual Dedicated Hosting or Virtual Dedicated Servers offers many advantages when compared to dedicated hosting or dedicated servers. Using virtual technology like Xen, OpenVZ or Hyper-V, we are able to create multiple virtual servers on a powerful enterprise level server. The virtual environment acts the same way as a regular dedicated hosting environment but it comes at a lower cost. The virtual technology allows us to set limits on memory, space, bandwidth and cpu cores. Therefore, clients are able to get the same feel of a dedicated server but only pay for the resources they need. The main focus for most users should be on the number of cores and memory allowed per VPS package. Depending on the requirements, vps hosting users can opt for memory anywhere from 256 MB RAM - 12 GB RAM for their virtual server. Furthermore, users have an option of selecting between 2 core - 8 cores for the CPU power. VPS hosting plans with 8 cores offer full cpu utilization on virtual environment.

Other advantages of VPS include burstable CPU. Depending on the VPS hosting plans, users will have access anywhere from 2-8 cores of the CPU. When the server is idle, users can get full access to the all cores that are assigned to the virtual server and in most cases this will offer faster speeds when compared to a dedicated server at the same price. Another advantage includes disk performance with the help of RAID 10 and BBU.

With Dedicated Hosting or Dedicated Server, you are getting full access to the entire server resources and there are no other users who will share system resources. Dedicated Servers are designed for users who plan to run resource intensive application or plan to setup a cluster with multiple dedicated servers. A dedicated server that offers same level of performance as the VPS package will usually cost a lot more on monthly basis.

2.) Why should I upgrade from shared web hosting account to VPS hosting account?
For clients who started on a shared hosting environment and are experiencing growth in website traffic should consider moving to VPS. On shared hosting environment, users are sharing server resources with other clients in the same enviornment. There is no separate virtualized enviornment for each individual shared hosting client. Furthermore, shared hosting servers are configured to offer stability for all users on the server. Therefore, if one site spikes in the amount of traffic for a long time, they might receive limits on number of connections to their site or suspension in extreme cases. Furthermore, with shared hosting users don't have control over their environment such as ability to configure Apache, install specific version of PHP, MySQL, Perl, Ruby etc. Finally, with shared hosting users are limited to only one cPanel account when compared to a VPS plan with cPanel that offers unlimited cPanel accounts. A VPS hosting plan with cPanel is a perfect plan for webmasters who manage multiple websites or users who wish to offer web hosting to their clients.

3.) How does Xen virtualization work for Linux and Windows VPS?
Xen virtualization platform for Linux offers soft memory limits. The swap space offered with Xen VPS allows the VPS to start using hard disk when running out of allocated RAM. This allows the VPS to stay online when under heavy load. Furthmore, Linux based Xen virtualization offers full iptable access and offers support for wide range of linux operating systems.

Xen virtualization for Windows VPS offers the ability to run Microsoft Windows as a guest operatng system. Using Paravirtulization drivers, xen based Windows VPS are able to offer a performance boost for both the disk and network.