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Are high I/O Exchange and SQL servers poor virtualization candidates?

Eric Siebert EXPERT RESPONSE FROM: Eric Siebert

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QUESTION POSED ON: 15 August 2007
I hear that high I/O Exchange or SQL servers are not good candidates for virtualization. Is this true?

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No, not necessarily. They can be candidates, but in today's world they often aren't because the focus is on consolidation and high consolidation ratios (everyone wants that ROI right now).

High I/O applications tend to use most of their hardware, therefore you are paying for a hypervisor and not getting a 4:1 virtual machine-to-processor consolidation ratio. You may be getting a 5:1. Needless to say, not quite appealing from a finance perspective, but it doesn't mean they can't be virtualized.


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