Cluster Shared Volumes (CSV) on S2D (Windows Server 2022) and DataDeduplication

Copper Contributor

I have a Storages Spaces Direct Cluster on Windows Server 2022 and I have Windows Admin Center in a current version (1.4.2212.08003)
Seems like, that version some has changed in Volume management with Dedup enabled CSVs.


When opening the volume WAC throw an error:
Couldn't obtain storage pool information. Error: (1) RemoteException: The specified module 'Microsoft.ReFsDedup.Commands' was not loaded because no valid module file was found in any module directory. (2) RemoteException: The term 'Get-ReFSDedupSchedule' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.



I've googled 'Get-ReFSDedupSchedule' as a cmdlet... There is only 1 refence online, pointing to a Q&A article with no info.
Windows Server 2022 - Storage Spaces Direct Cluster - Potential Bug - Microsoft Q&A


The powershell module "Microsoft.ReFsDedup.Commands" isn't available within the WAC directories or the windows powershell default directories. 


Has anybody seen that error?

5 Replies

@Andi B. 

I've the some problem with azure stack HCI


I am also pretty sure, it is a bug in the current WAC version.
In older Windows Admin Center (or maybe the cluster management extention) installations all is working well.
We just pushed out a fix, please update your extensions and try it out again!