Review of Virtuozzo for Linux 3.0

[regic]

Unlike some virtualization solutions, Virtuozzo doesn't present a software virtual machine to an operating system to run multiple OSes on the same system. Instead, Virtuozzo uses OS-level virtualization to partition the system into separate Virtual Private Servers (VPS) -- similar to Solaris Zones or Linux-VServer.

This means that Virtuozzo for Linux can run several Linux VPSes, but unlike VMware, it doesn't run multiple OSes on the same server. That might seem to limit your choices somewhat, but many organizations have no interest in running different OSes in virtual containers -- they just need a way to improve hardware utilization through server consolidation, and make system management easier. Virtuozzo does do that very well.

Each Virtuozzo VPS has its own filesystem, root user, and configurations. For all intents and purposes, each VPS is its own separate system...

full article: http://www.linux.com/article.pl?sid=06/06/27/1428237