Hi all. I saw a question on this the other day, and thought I'd ask my own similar (but not the same) question.
We have 10GbE interconnects for all our cluster work within SGE/OGE. Storage is provided via 10GbE TOR's served out over NFS to all nodes. We're wanting to squeeze what we can out of these switches and hardware. So: 1. Should we be using jumbo-frame style MTU settings? 2. If so – what MTU do users generally recommend? 9000? Above 9000? 3. What of hardware flow control? Generally enable it, or are there precautions/corner cases where it's not a sensible thing to do? 4. Are there any other simple network-changes/suggestions people have that we could stand to benefit from? For reference – we're using the current ROCKS distribution (6.0, Mamba) and Dell Powerconnect 10GbE TOR's/interconnects, coupled with Broadcom CNA's in all our blade/node infrastructure. Thanks! --JC
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