Hi,
When comparing running the same processes on a 2008R2 cluster versus a 2012 cluster, we are getting intermittent network drops on the 2012 vm that do not ever occur on the 2008R2 vm. The scenario is reading large files (50GB) from the virtual machine to a physical machine and then the physical machine writing back to another location on the virtual machine.
A colleague has mentioned he saw that there was a known issue in 2012 Hyper-V regarding network drops under heavy loading that has already had a hotfix released, but we can no longer find this - does anybody know if this is available still?
Also, are there any obvious differences between the virtual adapters in 2008R2 and 2012 (or the networking in general) that might contribute to this? The hardware is at face value identically specified so we are focusing on the Hyper-V differences to start with.
Cheers
Dan