Introduction to the Xen Virtual Machine

Xen is the new kid in the virtualization arena, receiving well deserved attention from the industry and the academia, with some really big players betting on it.

Xen is an open source virtual machine monitor, or hypervisor, developed by the University of Cambridge. It has a design goal of being able to run 100 full featured OS instances on a single typical computer. Xen provides secure isolation, resource control, quality of service guarantees, and live migration of virtual machines.

Linux Journal is featuring an introductory article on Xen and its design. A nice, moderately technical read: Introduction to the Xen Virtual Machine