I’m running ZFS on Fedora 23 and I notice that there’re new features which can be enabled in the existing pool.

Get the ZFS version for tank’s pool:

Huh? I’m not sure why there’s no value set on ZFS running on Linux.

Well, let’s upgrade the pool:

It seems to have been successfully upgraded. Let’s verify:

Ref: http://freebsd.pro/topic/12/