On Friday 08 October 2010, David Hubbard wrote: > Hi all, I've got an R900 with four six-core cpu's that > will be doing Symantec NetBackup backing up and > de-duplication duties over ten gig via a Cisco 4900M > so it's going to need to be a fiber card, short range. > > Any recommendations on best NIC for the job, i.e. > best throughput and lowest resource utilization? OS > is RHEL 5 and ideally I'd like to stick with the > built in drivers but if necessary I can replace > them, I just hate dealing with 3rd-party drivers and > kernel patches and rebooting with no networking, etc.
I've recently tested three different 10G eth NICs on a similar platform using CentOS-5.5(x86_64). Here are the NICs with driver comments: Intel X520-da2: driver: ixgbe Built in driver good, no upgrade req. Emulex OneConnect: driver: be2net Built in driver ok, upgraded driver better (performance) NetXen NX3031: driver: nx_nic No built in driver All of these NICs performed well and >=2 tcp streams reached wire speed without any tcp-tuning. I've not done extensive testing on CPU-consumption but most servers today have cores to spare, no? A 4th NIC worth considering IMO is the ConnectX from Mellanox. /Peter
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