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Data Centers

vSphere Tops Hyper-V in Disk I/O: Page 2 of 2

As a user of server virtualization tools, and a follower of the market, I've always thought that VMware's lead was evident primarily on the management side of the ledger--with vCenter integration, vMotion, Distributed Resource Scheduler (DRS) and the like. Microsoft Hyper-V, I thought, was a competitive hypervisor that needed a bit more age in the bottle to develop the features that I love in vSphere. Then Overland Storage hired my firm, DeepStorage.net, to test its SnapSAN S2000 in both environ
Howard Marks
January 17, 2011

Like VMware's VMark benchmark, our multiple workload test is based on tiles. A single tile consists of:

  • A Windows Server 2008 system running IOmeter's File Server Profile
  • A Windows Server 2003 R2 system running IOmeter's Web Server Profile
  • A Windows Server 2008 system running IOmeter's 4K OLTP profile to emulate a SQL, Oracle or MySQL server
  • A Windows Server 2008 R2 system running Microsoft's JetStress 2010, which uses the Exchange 2010 Jet database engine to present an Exchange-like load

The object of the test is to determine the maximum level of load the test system can handle while still delivering data within JetStress' 20ms maximum latency limit. The load presented by each system is adjusted until we reach the highest level at which JetStress still passes the test.

The load presented by the IOmeter systems is controlled by adjusting the number of I/Os each has outstanding at any given time, while JetStress is controlled by the number of simulated heavy (.45 IOPS/user) users. 

This data is the result of research and testing for which Overland Storage paid DeepStorage.net. The full report with more detailed test data is downloadable from Overland Storage's Website.

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