Virtualization and Linux--A Primer (Part 2) - page 5
SWsoft's Virtuozzo uses operating system-level virtualization to divvy up server resources and build homes for guest operating systems. This is more efficient and kinder of hardware resources than emulation. Virtuozzo is a popular product, second only to VMWare.
SWsoft sponsors OpenVZ, which is released under the GPL. OpenVZ is on its way to being included in the major Linux distributions. It requires a custom kernel as well as some userland utilities. There is a Yum repo, and it's in Debian Unstable. Building it from sources isn't too hard- real geeks can patch kernels, and there are good howtos on the OpenVZ Wiki.
Solid state disks (SSDs) made a splash in consumer technology, and now the technology has its eyes on the enterprise storage market. Download this eBook to see what SSDs can do for your infrastructure and review the pros and cons of this potentially game-changing storage technology.