I would like to shrink the space required by a thin volume used as a disk for a virtual machine (Windows). Unfortunately, the underlying disk is a USB-attached SSD and therefore mounting the NTFS filesystem and trying to use fstrim does not work (unsupported operation). How could I reduce the space used by this thin volume?
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https://superuser.com/questions/1255128/lvm-thinpool-thinvolume-free-blocks-reclaim-space – user1133275 Jan 25 '19 at 21:20
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@user1133275 Won't work as underlying device does not support the operation – LeoTietz Jan 26 '19 at 21:06