Originally Posted By: ira L.
I don't know the storage requirements

Snapshots only "save" data sectors where changes are made by changing the pointers in the file to point to the new sector and temporarily not releasing the original data sector to be overwritten, so it is very difficult to assess how much disk space they consume and even then it could be a wild variation. Snapshots are only supported on drives formatted APFS and IIRC the maximum number of snapshots you can have is 10.

I see a lot of potential in snapshots but AFIK other than command line apps, CCC is the only app to offer any access or control. Basically they are a powerful but unexplored and unexploited tool. I suspect will see Time Machine taking advantage of snapshots, but first Time Machine will have to be made compatible with APFS. One step at a time.

If we knew what it was we were doing, it wouldn't be called research, would it?

— Albert Einstein