upgrade ZFS with draid

AFAICT the dRAID feature got recently merged into the master branch of ZFS. usually big changes like these don't get pulled into stable update/minor releases of ZFS (i.e. it won't be part of any 2.0.x release).
This means that we will not provide it packaged with our kernel for the foreseeable future (we track ZFS stable upstream rather closely, and don't include features before they are not part of a stable release there).

You can probably compile upstream master with dkms, but I cannot recommend running your only backupstorage on relatively fresh code.
i.e. if you do this make sure to have backups elsewhere as well :)

I hope this helps!
 
IIRC draid is planned to become stable upstream with a 2.1 release later this year, once that is available we can take a look and re-evaluate.