Thin Disks VM server Windows 50GB Disk C:\ Guest Zero in guest WILL fill the disk sdelete -z C:\ VMDK will be 50GB Guest will be 0GB Storage Will be 0GB IF it understand Zeroing To resolve VMDK size Storage Vmotion or vmkfstools -K /path/to/disk-name.vmdk https://kb.vmware.com/s/article/2004155 or the best soloution run in-guest UNMAP BUT Virtual... Continue Reading →