Hi Kanishk
Yes I have tried the command vmkfstools -y with 60,70,80,90,99 and even the figures in the following thread
Re: esxcli storage vmfs unmap - doesn't reclaim all available storage?
however it runs for a few seconds and says its complete, when I look on the volume size on the NetApp it only shows a small decrease in space.
Can confirm it is supported NetApp Knowledgebase - What VAAI configurations are supported on Data ONTAP storage controllers?
Thanks