On Sun, Jun 16, 2013 at 9:03 PM, sal poliandro <popsikle at gmail.com> wrote: > On a side not the native linux drivers have not really kept up with the 40gb > cards. Linux still has issues with some 10gb cards. If you are going 40gb > talk to the people that license the dna driver. They are in paramus nj and > do a lot of higer end networks with proper Linux drivers. The media (dac > cables or om4 mtp) dont seem to affect performance much as long as you dont > push the dac longer than 3-5 meeters. I have to jump in here and add that I'm with you for the drivers aspect. I had a lot of problems with the 10gE drivers when getting gluster going. I haven't tested recently, but it's a huge worry when buying hardware. Even RedHat had a lot of trouble confirming if certain chips would work! The other issue I have is with hardware RAID. I'm not sure if folks are using that with gluster or if they're using software RAID, but the closed source nature and crappy proprietary tools annoys all the devops guys I know. What are you all doing for your gluster setups? Is there some magical RAID controller that has Free tools, or are people using mdadm, or are people just unhappy or ? Cheers, James PS: FWIW I wrote a puppet module to manage LSI RAID. It drove me crazy using their tool on some supermicro hardware I had. If anyone shows interest, I can post the code.