Quick and easy one-liner - if you need to know at a glance which DCs in a domain are GCs and which aren’t:
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainControllers | %{"$($_.Name) : $($_.isglobalcatalog())"}
Quick and easy one-liner - if you need to know at a glance which DCs in a domain are GCs and which aren’t:
[System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain().DomainControllers | %{"$($_.Name) : $($_.isglobalcatalog())"}