topic Failure: Invoke-NaHostVolumeSpaceReclaim : in Microsoft Virtualization Discussions

Failure: Invoke-NaHostVolumeSpaceReclaim :

DaveDeim — Wed, 04 Jun 2025 12:15:51 GMT

I had the customer run the power shell script for space reclaim on the LUNs. When he attempted to run, he go the following failure message.

S & H are 2 LUNS which failed with message, E is another LUN and that worked.

I had him run the Get-NaHostDisk command and it returned the following. The three highlighted disks are the ones he is unable to reclaim space on. Not sure what my next step should be.

Re: Failure: Invoke-NaHostVolumeSpaceReclaim :

Ontapforrum — Tue, 10 Sep 2019 00:18:28 GMT

Could you also try using Nc instead of Na ( ("Na" = 7-mode, "Nc" = clustered), as this is an cDOT Luns.

Even though 'Na' also works but you can give it a try:

InvokeNcHostVolumeSpaceReclaim

Re: Failure: Invoke-NaHostVolumeSpaceReclaim :

ChanceBingen — Tue, 10 Sep 2019 14:16:10 GMT

I would check two other things as well.

1. Is this LUN a cluster resource? If so, you may need to run the command from the Windows node that owns the resource.

2. Ensure that "space-allocation" is enabled on the LUN in ONTAP. If it isn't, then you can't reclaim space from it.

Let us know if that helps.

Re: Failure: Invoke-NaHostVolumeSpaceReclaim :

DaveDeim — Tue, 10 Sep 2019 16:48:52 GMT

Re: Failure: Invoke-NaHostVolumeSpaceReclaim :

Ontapforrum — Wed, 11 Sep 2019 10:47:24 GMT

Came across few threads not exactly same issue but may be helpful: (Also try updating the PSTK kit to latest release)

https://community.netapp.com/t5/Microsoft-Virtualization-Discussions/Invoke-NcHostVolumeSpaceReclaim-not-working-on-Windows-Server-2008-R2/td-p/139536

https://community.netapp.com/t5/Microsoft-Virtualization-Discussions/Invoke-NcHostVolumeSpaceReclaim-does-not-work-on-Cluster-Shared-Volume-with-DOT/td-p/133970

https://community.netapp.com/t5/Microsoft-Virtualization-Discussions/Failure-Invoke-NaHostVolumeSpaceReclaim-Target-volume-is-not-a-LUN-hosted-by/td-p/58875