Yea the VM is named "openmediavault?
I see, maybe I'll avoid snapshots then. No there is absolutely no backup system of any sort for the VMDK. I have data backup through openmediavault when it's running so I haven't lost any data, just extreme annoyance with having to respin my VM.
edit:
If I take a snapshot of a thick provisioned disk, I would need equal free space of the size of the VMDK right?