(I am sure I saw the answer to this but I can't find it, so apologies if this is answered already)
I have a pool with 4x2TB spinning disks and 2x1TB SSDs, with about 3TB free. The pool is only for large (legal!) media files and is now pretty much read-only. Should there be any new writes I would like them to land on the SSDs first but I _don't_ want the SSDs to be completely evacuated. Instead, I want to keep a certain % of the SSDs free, but the rest of the space should be considered fine for long term file storage.
Using the SSD plugin gives me the "write first to SS