I have a Windows Server VM running in free ESXi 6 on a 450 GB drive.
The disk has one 9GB snapshot and 200 GB delta. But actual disk usage as seen by Windows is 75 GB.
So at least 100 GB is wasted. Can I reclaim the space?
I can try zerofilling free space with sdelete -z and run vmkfstools -K, but will it work on disks with deltas? I remember VMWare Workstation/Player were quite limited.