Get available RIDs using dcdiag or Powershell

Using DCDIAG:

dcdiag /s:dc01.domain.com /test:ridmanager /v | find /i "Available RID"

 

Using PowerShell to convert the parts of riDAvailablePool into issued and remaining RIDs.

 

$DomainDN = (Get-ADDomain).DistinguishedName

$property = get-adobject “cn=rid manager$,cn=system,$DomainDN” -property ridavailablepool -server (Get-ADDomain).RidMaster

$rid = $property.ridavailablepool   

[int32]$totalSIDS = $($rid) / ([math]::Pow(2,32))

[int64]$temp64val = $totalSIDS * ([math]::Pow(2,32))

[int32]$currentRIDPoolCount = $($rid) – $temp64val

$ridsremaining = $totalSIDS – $currentRIDPoolCount

Write-Host “RIDs issued: $currentRIDPoolCount”

Write-Host “RIDs remaining: $ridsremaining”