Thoughts on my planned storage extension

Hi all,

I'm planning the storage extension of my FreeNAS (11.0.U2) running on my 36bay Supermicro Server. I've got one pool (83% full) which consists of two vdevs (10 x 4TB RAIDZ2).

I'm considering one of two options:

- adding one vdev to existing pool (10 x min. 8TB RAIDZ2) or
- create new pool with one vdev as above

Any ideas/input would be highly appreciated, do you see any pros/cons from one option to the other? Any other (maybe completely different) vdev/pool-design? Usage is...

Thoughts on my planned storage extension