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xen-users
Re: [Xen-users] how to install Windows without hardware support
Artur Baruchi wrote:
If you wanna virtualize your data center and dont have the VT tech,
you should use paravirtualization... remember that paravirtualization
has some advantages, like better IO.
When one is trying to "virtualize a data center" (aka server
consolidation) one is *usually* talking about migrating pre-existing
servers and services, often third party applications or "quantity one"
in house applications. These are often written for *older* versions of
operating systems, and often closed source OSes like Windows NT, 2000
and 2003, not to mention Solaris 7 through 9.
Paravirtualization is *not* possible in those environments, and the
*first* thing medium sized companies would do when you called them for
support of an app running on a non-standard kernel will be to blame the
kernel.
So you either cough up the cash for a server that supports VT (and this
winds up being a cost *savings* in the long run), or you use something
like VMware Server and live with the less than desirable performance.
When you figure the cost of buying a new low to mid range server to
replace 4 or 5 existing servers, with power, cooling and space
reclaimation your ROI is pretty good.
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