I am in the early planning stages of putting together a lustre system and when I look at IB speeds it seems most if not all the 40Gb IB cards are running over PCIe with 8 lanes. If PCIe lanes are good for about 200MB/s that means I can only get 1600MB's tops from one of these cards, but 40Gb xlates to around 4GB/s. Am I reasoning this correctly or is have the potential of the card wasted?
I can see using 40Gb switches to get the backplane speed and reduce contention on the switch but what are people using on the hosts? Corey _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
