This article is intended to provide more information about a specific issue that can be identified by running a Best Practices Analyzer scan for Hyper-V. It also can be used without running a scan, as general troubleshooting and best practice information to help you configure your server appropriately. If you have troubleshooting steps or information that would improve this article, please add it. For instructions on how to edit a TechNet Wiki article see, Wiki: How to Use the Editor.
For more information about best practices and scans, see Best Practices Analyzer.
| Operating System | Windows Server 2012 R2 |
| Product/Feature | Hyper-V |
| Severity | |
| Category |
Note: The following sections provide details about the specific issue. Italics indicates UI text that appears in the Best Practices Analyzer tool for the specific issue.
Issue
A differencing virtual hard disk with the parent and child virtual hard disks on different volumes has storage Quality of Service enabled.
Impact
This configuration may result in unexpected storage Quality of Service behavior for the differencing virtual hard disk, as well as other virtual hard disks on the parent and child volumes. This impacts the following the virtual hard disks: <list of virtual hard disks>