2015: Is BTRFS stable? [duplicate]
Solution 1:
I use btrfs for years now and there are situations in which I can not recommend using it. When losing power or shutting down unctrollably, the risk of irreparable damage is high. When the hard disk is operated in nearly full state, sporadic malfunctions may happen and the displayed free space and the usable space may differ strongly. When juggling with big amounts of snapshots, there are rare situations in which data gets inaccessible. Some mechanisms as the deduplication, filesystem repair and scrubbing are systematcally broken.
All that does not appear too good after so many years of development, and I do not have the impression that the situation will improve. btrfs can be used for special purposes, but under no circumstances I would entrust critical data to it.
Solution 2:
On the BTRFS Wiki you can find companies that are using it in production or testing it in production so out of the development/testing/staging stages.
So you can use it for your semester project as long as you don't forget to make back-ups!
(But you are making back-ups already, aren't you?)