When you have Hyper-V servers running with an anti-virus product on the host server please take a look at the following recomendations to keep Hyper-V running as optimal as possible.
- Default virtual machine configuration directory (C:ProgramDataMicrosoftWindowsHyper-V)
- Custom virtual machine configuration directories
- Default virtual hard disk drive directory (C:UsersPublicDocumentsHyper-VVirtual Hard Disks)
- Custom virtual hard disk drive directories
- Snapshot directories
- Vmms.exe (Note: May need to be configured as process exclusions within the antivirus software)
- Vmwp.exe (Note: May need to be configured as process exclusions within the antivirus software)
Additionally, when you use Live Migration together with Cluster Shared Volumes on Windows Server 2008 R2, exclude the CSV path “C:Clusterstorage” and all its subdirectories.
For more general exclusions on a Windows based host read this article.
Use these recommendations as is and always use caution with excluding files and folders from your anti-virus product.
I am not liable for any virus outbreaks on your systems as a result of these recommendations. Use at your own risc and use wisely.