In my previous post, I was stating that ZFS on Linux was not mature enough. The native ZFS port to Linux, although active, is still in release candidate stage and requires significant work to install. As for the ZFS FUSE version, it is still a 0.7 version not updated for long but it is easy to install on Ubuntu as it is available in the Software Centre (the link only works if your system supports the ‘apt:‘ scheme like on Ubuntu).
I have tried and installed the later, and although I cannot give any conclusion from a stability/reliability point of view, I was able to perform successfully the same steps I had performed on FreeBSD using ZFS.
Perhaps, these links might help you to deploy ZFS, more easily, as a root “/” filesystem on Fedora :
https://github.com/Rudd-O/zfs-fedora-installer
http://rudd-o.com/linux-and-free-software/installing-fedora-on-top-of-zfs