Implicit datetime snapshots

[ozialien]

I am wondering what the practicalities would be to add implicit datetime snapshots. Would this imply a uberblock change journal or something. I like the idea of being able to go to a datetime and not worry about explicitly snapshoting most of the time.

[amotin]

If you create snapshots often and never delete them, it effectively mean that you never free any space. Plus too many snapshots on a pool with constant write and delete increase time of their deletion exponentially. Just set up some reasonable snapshot policy you like explicit, it is not difficult.