There’s more detail on Hyper-V R2 scalability and processor compatibility mode in this post by the MS virtualisation team.
“You could run:
- 384 single virtual processor vms OR
- 256 dual virtual processor vms (512 Virtual Processors) OR
- 128 quad virtual processor vms (512 Virtual Processors) OR
- any combination so long as you’re running up to 384 VMs and up to 512 Virtual Processors”
![clip_image001_thumb[1]](https://yyjwha.blu.livefilestore.com/y1m0beYmd8uG6m0hfKpiEdLAWUyAGblXZdRtQetkf-gV-Ulu3gCpgVoSwl2XKO8N0zqb1exW_ErT6r1DZfoyaCnhc6vpu0MLNF_W0UuT6SNdxe0530oSbbzbD7MqEYB8T52DZhYCiugGO20TYYWFzOijQ/clip_image001_thumb[1][3].jpg "clip_image001_thumb[1]")
They have “a 4 node cluster using 4 generations of Intel Processors with VT all attached to a small iSCSI SAN over 1 Gb/E. We have a script that continuously Live Migrates VMs from one node to the next every 15 seconds. We’ve been running this test for about a week and have successfully completed over 110,000 Live Migrations”.