run vm with ms terminal server on top of openssi cluster

Hello!
We have to have a huge amount of RAM for ms windows terminal server
(unfortunately the software is designed only for ms windows)
and the question is - is it possible to set up a cluster say out
of 5 machines (8 gb Ram on each, dual cored cpus) so we could
set up a virtual machine and run a ms terminal server with 24 gigs of
ram on top of this cluster? I worked only with vmware but if necessary
we could use any vm machine that is suitable (I heard xen is an
opensource vm). Sorry if I misunderstand something, I'm quite
experienced in linux but never had a deal with clusters.
	Vladi.


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