Slow performance (or unexpected rates) with 10Gb and SSD storage arrays

[mjp]

I've finally had the chance - I created tickets for 2 different clusters that have speed and performance issues in similar setups.

[dagar]

I had went off of this for my DRBD tuning options:
http://kb.open-e.com/Tuning-recommen...1GbE_1603.html

Just wondering if there are better tweaks for direct connected 10GBe?
Thanks
Derek

[To-M]

The 1GbE article is the same for 10GbE, try to disable scatter-gatter and TCP segmentation offload since in the Console screen go to CTRL ALT W then select Tuning options then select TCP offload options to turn those 2 options off. I heard that this might help for some Intel 10GbE NICs is to turn off the DCA Direct Cache Access, you can turn this off at the Console in CTRL ALT T then select Modify driver options and select the 10GbE NIC.