Setting up a trial of Veeam, ran into the issue where we need to set the ConfigStoreRootPath property on the Server 2016 CLuster. The KB article https://www.veeam.com/kb2194
explains how, but is missing a powershell parameter.
The final command needs the -create option added if it doesn't already exist.
Get-ClusterResource "Virtual Machine Cluster WMI" | Set-ClusterParameter -Name ConfigStoreRootPath -Value $path" -Create