Virtualization: Xen vs. Microsoft vs. VMware
Server virtualization has become a great tool for the data center, helped by the leading virtual server software vendors literally giving away their product. And as more IT shops consolidate their servers using virtual machines (VMs), they find an active marketplace and plenty of choices for how to implement the concept.
Adoption of server virtualization is accelerating. According to a Forrester Research, survey 51 percent of enterprises are now using or piloting the technology.
It’s a powerful notion: take a single computer (a dual core or multi-processor CPU is best), and divvy it up into separate "virtual" machines with their own memory, virtual hardware and drive images, and other resources. It isn't new: IBM has been doing this on its mainframes for more than 30 years, and we've had blade servers for the past five years too. But what is new is that the power of VM can be delivered to the PC platform.
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Intel, Novell deliver virtual Windows drivers to Linux
Although Microsoft and Novell are collaborating on virtualization to enable Windows Server to run on SUSE Linux, and vice-versa, Novell and Intel have advanced toward that goal with the release of paravirtualized network and block device drivers that allow Windows Server to run unmodified in Xen virtual environments.
These device drivers support SUSE Linux Enterprise Server 10 (SLES), and work on Intel-based server platforms featuring chipsets using Intel-VT (Virtualization Technology). The new drivers will let customers migrate to newer and fewer energy-efficient servers, consolidating legacy Windows or Linux solutions onto virtual servers.
The two companies have been working on Xen VT drivers since this summer. The first release of a VT driver for SLES was in September.
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