On 2008 R2: Say you have a 100GB dynamic VHD with 10GB used inside the VM (so the VHD itself is only 10GB), and took a snapshot, then created a 50GB file inside the VM. Then say you deleted the 50GB file inside the VM, so you had only 10GB being reported used in the VM again, then deleted and merged the snapshot. Would you end up with a roughly 60GB dynamic VHD after the merge, or a 10GB?
I understand the best practices or stated maximum space required for a merge being 2x of the AVHD, but I was curious how it works in your experience or "under the hood". I'm planning to do a merge this weekend with a similar scenario to the above - where a logfile grew to over 200GB, then I deleted it, and I wanted to know if it will grow the VHD by ~200GB, or if it's unlikely to.
Thanks for any thoughts.