You might want to look into using cephadm to setup CEPH. Use Erasure coding as data pool for very efficient data storage and protection (8+2). From that export large RBD to be used as zpool with dedup. Scales to Petabytes and has lots of failure protection options.
Thank you for that recommendation. I think I'm probably too small time for the moment for Ceph considering that. I don't have multi-petabytes (yet or perhaps ever).
