kyron wrote:
Given I haven't seen single 20TB drives out there yet, I doubt it to be the case. I wouldn't throw in NFS as a limiting factor (just yet) as I have
I was commenting on the 30 MB/s figure. Not whether or not he had 20TB attached to it (though if he did ... that would be painful).
been able to have sustained 250MB/s data transfer rates (2xGigE using channel bonding). And this figure is without jumbo frames so I do have some protocol overhead loss. The sending server is a PERC 5/i raid with 4*300G*15kRPM drives while the receiving well...was loading onto RAM ;)
We are getting sustained 1+GB/s over 10GbE with NFS on a per unit basis. For IB its somewhat faster. Backing store is able to handle this easily.
I think Michael may be thinking about the performance of a single node GbE or IDE rather than the necessary r/w performance to populate 20+ TB of data for data motion.
Eric Thibodeau
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