On Fri, 8 May 2015, Linda Kateley wrote:

> Yea, I don't think zol has delay code. The freebsd has delay code so that 
> during scrub or resilver, it puts a delay in between ios and keeps the pool 
> up and at almost full speed. Makes those admin tasks longer but it is nice

Oh this thing slows the hell down when I do a scrub - and a scrub in turn 
slows down regular operations! Which is why I thought about taking the 
pool completely offline (: