ITComparison Virtualization Microsoft Virtual Server 2005 R2 VS Xen Enterprise

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Microsoft Virtual Server 2005 R2 VS Xen Enterprise 4 (MS Biased)

Please be warned this comparison is biased toward MS. For our un-biased comparison please click Microsoft Virtual Server 2005 R2 VS Xen Enterprise 4 (un- Biased)

	Xen	MS Virtual Server
Product Price	Free - $2499	Free
Special Hardware Required	Intel-VT or AMD-V is a must	No, can run on any machine which support windows 2003.
Corporate size	Xen is small newly established company	Microsoft is a massive coorperate, which has been in the market for ages.
Windows Guest OS performance	Slower	Faster
Support Older Existing Server	Not unless they were new enough to have Intel-VT or AMD-V	Support any hardware which can run windows 2003.
Portability	Can't run on your laptops for Demos and test and developments	It can run on your laptop which enable you to take it every where.
Fool prove installation and configuration	No, not unless you are a Linux Guru	yes, just as all other MS products.
Microsoft Product Support	No, Microsoft offer full support for their prodcuts in virtual enviornment only on their virtual server	fully supported
Requires Guest OS Modification	Yes, require the inclusion of its Hypervisor in the Guest OS to perform well.	Not required

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