I have a windows server 2012 core on which thick LUNs are provisioned from netApp cluster. now when i check the spaceUsed column using the powershell command Get-NCLUN . it shows Size and SizeUsed value as same, and when i check the LUN space from windows, there is enough free space available.
is there any way if we can reclaim the space on netapp side.
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If yo install snapdrive on the windows 2012 server you can use space reclaimation feature. Right click on the LUN in question and select space relaimation, depending on the amount of space to be reclaimed it can take a while to complete