White Paper: Comparing the Power Utilization of Native and Virtual Exchange Environments


Is reducing or controlling the high cost of the power to run and cool computer hardware is a top priority for your organization? Are you considering server virtualization solutions to reduce your server footprint and the associated power and cooling costs?

Because the virtualization of Microsoft Exchange servers rarely results in a reduction of physical processors, there is some question as to whether there is significant hardware, power, cooling, or space savings from virtualizing correctly-sized Exchange Server 2007 server roles. The answer to this question can be found in a new White Paper we just released about a study that was done internally, entitled "Comparing the Power Utilization of Native and Virtual Exchange Environments." This study compared the power utilization of native and virtual Exchange server environments in a scenario in which the number of physical servers was reduced from eight to two, but the total number of logical processors and the amount of memory remained the same. It examined power utilization of native and virtual Exchange 2007 environments in a scenario where physical servers were reduced from 8 to 2 but the total number of logical processors remained constant at 32. There was no processor core consolidation, and storage power utilization was not included. In this scenario, there was a 50 percent reduction in server power utilization and a projected savings of 8,582 kWh/year.

For more details about the study and its conclusions, check out the White Paper, "Comparing the Power Utilization of Native and Virtual Exchange Environments."

Comments (3)
  1. Dean Steadman says:

    Great paper, thanks for the link. The similarity of the performance numbers at the end were very striking. Of course, to make virtualization of Exchange really payoff we’ll need support for Hyper-V’s live migration. This would allow the additional servers in the cluster to park their resources until the VMs are moved over to them for even greater cost savings across the datacenter. Hopefully, research like this will enable the team to review and extend their support for Hyper-V.

  2. hans-juergen says:

    I missing in the test the typicla nigh jobs. Backup, Index Build, Virusscann for Exchange. How are this jobs change the power consumention ?

    Why or not lower power server used for standalone server ?

  3. lee says:

    Do you guys plan on releasing info regarding 2010 and virtualization of the servers (HyperV, etc.) as a whole?  We are being pushed to virtualize everything, potentially as opposed to clustering.  I don’t see any real info on Exchange 2010 and virtualization and it’s supportability, etc.

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