The number of running virtual machines configured for SR-IOV should not exceed the number of virtual functions available to the virtual machines

Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016

For more information about best practices and scans, see Run Best Practices Analyzer Scans and Manage Scan Results.

Property Details
Operating System Windows Server 2016
Product/Feature Hyper-V
Severity Warning
Category Configuration

In the following sections, italics indicates UI text that appears in the Best Practices Analyzer tool for this issue.

Issue

There are not enough virtual functions available for the number of running virtual machines configured for single-root I/O virtualization (SR-IOV).

Impact

Networking performance might not be optimal on the following virtual machines:

<list of virtual machines>

Resolution

Consider disabling SR-IOV on one or more virtual machines that do not require an SR-IOV virtual function.