On Thu, 16 Jul 2015 at 18:08 Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> wrote:

I've always thought that ZFS would be better than btrfs myself, but
now I'm not as convinced of that.

I have always heard people say ZFS is better, Oracle should support ZFS not btrfs, etc. Don't know what to think myself.

ZFS on BSD for sure, but btrfs on Linux ... probably better and will
be much better yet. The big risk, as far as I am concerned, is that
it relies too much on specific kernel versions and of course it relies
upon Linux too. For a number of reasons, I would be happier if this
was also available in the BSD world.

coreos stopped using btrfs by default. They say they encountered too many problems with it.

https://groups.google.com/forum/m/#!topic/coreos-dev/NDEOXchAbuU