[Documentation enhancement] btrfs + dedupe tools can get you into a bad state if you have LOTS of data about mergerfs HOT 1 OPEN

I struggle with stuff like this. On the one hand this ultimately isn't a mergerfs concern in the sense it isn't unique to it. But the reality is a lot of users get themselves into *nix filesystem complexities through mergerfs. It is hard not to put 'filesystem 101' style comments in the docs due to that.

Right now the docs are too verbose. At least in their current form. My plan is to build a "readthedocs" style site in the not to distant future. When I have that kind of setup I think these kinds of filesystem specific notices / gotchas will be easier to fit in.

To that end... I'll keep this ticket open but I think will wait to add it till I do that documentation migration.

from mergerfs.