topic Re: Reclaim space does not work in vsc in VMware Solutions Discussions

Reclaim space does not work in vsc

thor1887 — Wed, 04 Jun 2025 15:05:12 GMT

Hello,

we try to reclaim space using the vsc.

It is not working and it always terminates with the error unknown,

as you see in the attached screenshot.

It would be nice to know if anybody succeeds using this feature and if you have any suggestion how to debug it.

Regards,

Thorsten

Jeff_Yao — Tue, 16 May 2017 04:54:52 GMT

VSC could be used to reclaim space ONLY from NFS-based VMs with prerequisites

below 2 kbs might be helpful

Unable to use the ESX reclaim/unmap function on a thin provisioned LUN - https://kb.netapp.com/support/index?page=content&id=2018575&locale=en_US

What VAAI configurations are supported on Data ONTAP storage controllers? - https://kb.netapp.com/support/index?page=content&id=3013572

thor1887 — Thu, 18 May 2017 13:02:55 GMT

Hi yaoguang,

yes we are using a nfs datastore and no lun

so it has to work but it doesn't.

Thanks a lot for your reply,

Regards,

Thorsten