Warning message: "Performing a Reconfigure for vSphere HA operation on a primary node may cause an unexpected virtual machine failover" displayed in Skyline Health

Products

• VMware vCenter Server

Issue/Introduction

 

A "Skyline Health has detected issues in your vSphere environment" warning is displayed on the vCenter Server summary page.

 

Navigating to Monitor > Skyline Health displays the following warning:
"Performing a Reconfigure for vSphere HA operation on a primary node may cause an unexpected virtual machine failover"

 

Cause

This warning is displayed when the workaround described in KB 318969 is not applied to the environment.

Resolution

Consider applying the workaround (setting unknownStateMonitorPeriod to 30) described in KB 318969.

Alternatively, to ignore this warning, click the Silence Alert button and run a RETEST to clear the alert.

Additional Information

Performing a "Reconfigure for VMware HA" operation on the primary ESXi node in an HA cluster triggers false "unexpected virtual machine failover" alerts to be generated