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Reclaim used space

Hi

 

I'm trying to reclaim free space at thin provisioned LUN using NMAP commands (vmkfstools -y). I am using a Netgear ReadyNAS 312 connected with ISCSI to my ESXi host.

Unfortunately, VAAI is not supported by my NAS:

esxcli storage core device vaai status get

naa

   VAAI Plugin Name:

   ATS Status: unsupported

   Clone Status: unsupported

   Zero Status: supported

   Delete Status: unsupported

 

Since UNMAP is not supported (Devices backing volume [...] do not support UNMAP), are there other options to reclaim unused space?

Is the only option to solve this problem to make the LUN at the NAS a thick one instead of a thin one? Or do I need to make the VMDKs on the LUN thick?


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