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How many VMs can Hyper-V support?

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In Windows Server 2008 R2, Hyper-V can support up to 384 virtual machines (VMs) as long as the number of virtual processors assigned to those VMs do not exceed 512.  These numbers change a bit if you are running Hyper-V in a Failover Cluster.  You can only support 64 VMs per node of the cluster.  Since all business critical applications and services need to have a fault-tolerant solution, you will more than likely be running your VMs on a Failover Cluster.  So, for the production environment, I would say 64 VMs is the limit.
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H@ns said…
This number was changed in June 2010 by the cluster team: 1000 guests per cluster, 384 max per node. But always make sure your storage and network infrastructure can support the load.

http://hyper-v.nu/blogs/hans/?p=246

Hans Vredevoort
Cluster MVP
February 4, 2011 at 12:36 PM
Jason Yoder, MCT said…
Thank you for the update Hans!
February 5, 2011 at 12:43 PM
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