A while ago I posted about a hotfix that would correct a problem where virtual machine network connectivity would be dropped under heavy network load (original blog post here). Unfortunately this specific fix was not included in Windows Server 2008 R2...

At a customer site we received several notifications of performance issues with a VMware VI3 environment. After having checked the configuration of the VMs and the Hosts we decided to dive into esxtop. At first sight we did not see any abnormalities....