> Though, of course, if, for example, you have one pipe for bulk transfer and one for control/meta-data.... :-) I do, but 15 usec is fast enough for that. :)

> Though, of course, if, for example, you have one pipe for bulk transfer and one for control/meta-data.... :-) I do, but 15 usec is fast enough for that. :) I generally don't like paying a premium for slightly better performance. Even these rackmount systems are very pricey compared to putting together your own vanilla boxes. Data bounces from node to node; the main reason to go 10gigE instead of 1gigE is actually for lower latency from the extra room. 100 Mbit of traffic on fast ethernet = 1 sec latency vs 0.1 sec on 1gigE vs. 0.01 sec on 10gigE (not counting overhead of course).