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Xen VPS hosting provides a hosting environment that behaves almost identically to dedicated hosting. One Xen customer cannot touch another account's allocated CPU processing and memory limits. A Xen VPS customer is also unable to surpass their own account limits. This isolated VPS environment is very stable because there is no contention for memory and CPU processing, and customers know the specific availability of these resources.

If a Xen Host account begins to run out of memory, inactive processes are pushed to allocated hard disk storage called the swap space. The swap space lessens the memory load and frees up usable space in RAM. The swap space is a useful tool, but a Xen VPS account will experience a performance penalty when utilizing it.

Xen Hosting customers have a choice of multiple Linux operating systems, have complete access to iptables and can custom compile the Linux kernel. Xen is managed with the HyperVM control panel with the fully configured and user friendly Parallels Plesk Panel [Control Panel] as the default option for account management. Xen is a great VPS environment for experienced webmasters who need a flexible virtual private server option that offers a high level of control and customizability.

What is Xen Hosting?

Xen is a highly segregated virtual private server (VPS) hosting environment. One customer's account cannot touch or impact the CPU processing and memory limits allocated to the other accounts on the same Xen VPS server. This is why Xen and dedicated hosting environments are quite similar. Xen VPS hosting takes system stability to the next level because accounts do not contend with each other for available memory and CPU processing.

Xen customers will always know the exact amount of resources available to their account. This is in contrast to OpenVZ VPS Hosting, our other VPS hosting environment that utilizes burstable memory. Learn more about the difference between Xen and OpenVZ.

Xen Hosting's Swap Space

The Xen host environment utilizes what is called swap space. If a Xen account begins to run out of memory, any inactive processes are pushed to this allotted disk space. The swap space isn't intended to be additional account space. Rather it is an area used to temporarily house inactive processes to reduce the memory load and free up space whenever necessary. Swap space can be a great tool, but an account will experience a performance penalty when using it.

Xen Hosting's Account Management

Xen hosting accounts are managed by default with the HyperVM control panel as well as the fully configured, user-friendly Kloxo control panel. While HyperVM is used for overall account administration, webmasters will use Kloxo for daily operations. Kloxo includes a module called InstallApp that is used to auto-install a wide variety of applications like blogs, CMS and forums.

Xen Hosting & Power Users

Xen is the ideal VPS environment for seasoned webmasters who require a flexible VPS platform with high levels of control and customization capability. Xen is a wonderful VPS environment, but it isn't intended for every webmaster. Xen customers have complete access to iptables for firewall security and are able work with its customizable kernel. A2 Hosting recommends that Xen customers with high memory and CPU usage requirements consider the larger VPS packages that we offer like the Power VPS or Pinnacle VPS. This will prevent persistent performance penalties from heavy use of the swap space.