Bah, every time I think I&#x27;ve got a handle on ZFS I learn something new that tells me I haven&#x27;t configured my system properly. I&#x27;ve got 2 mirrored vdevs and a 120GB SSD as L2ARC - I&#x27;m not sure I&#x27;d get much more of a benefit from SLOG, although it might speed up some jails. CIFS transfers are going at 800 - 900 megabits, and moving to 10GBe isn&#x27;t feasible yet ;).<p>OT: Anyone seen behaviour like this? <a href="https:&#x2F;&#x2F;lists.freebsd.org&#x2F;pipermail&#x2F;freebsd-net&#x2F;2016-February&#x2F;044619.html" rel="nofollow">https:&#x2F;&#x2F;lists.freebsd.org&#x2F;pipermail&#x2F;freebsd-net&#x2F;2016-Februar...</a>