[OmniOS-discuss] iSCSI poor write performance

[Dan McDonald]

> On Sep 16, 2015, at 4:04 AM, Martin Truhlář <martin.truhlar at archcon.cz> wrote:
> 
> Yes, I'm aware, that problem can be hidden in many places.
> MTU is 1500. All nics and their setup are included at this email.

Start by making your 10GigE network use 9000 MTU.  You'll need to configure this on both ends (is this directly-attached 10GigE?  Or over a switch?).

Dan