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11/29/2007 - Vmotion and HA with Exchange VMs - Comments
A second whitepaper from the Exchange 2007 on VMware testing that Kong and I presented at VMWorld has been published on the wiki. It covers the performance of 500, 1000, and 2000 user Exchange VMs under load while using VMotion and VMware HA. The complete results are in the paper, but a quick summary is that all VMs performed without error in all the VMotion and VMware HA tests.
At our presentation at VMworld we talked about how we saw some unexplained behavior with the large VM with both VMotion and VMware HA. We found that by lowering the amount of RAM assigned to the VM, so that one GB was available for ESX to use exclusively, that the performance of the large VM with 2000 users was much better.
A landing page for Exchange on VMware has been created on the wiki that has all of the whitepapers and the VMworld presentation.
Todd
At our presentation at VMworld we talked about how we saw some unexplained behavior with the large VM with both VMotion and VMware HA. We found that by lowering the amount of RAM assigned to the VM, so that one GB was available for ESX to use exclusively, that the performance of the large VM with 2000 users was much better.
A landing page for Exchange on VMware has been created on the wiki that has all of the whitepapers and the VMworld presentation.
Todd
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