On 05/06/2013 08:35 AM, Gandalf Corvotempesta wrote:
2013/5/6 Mark Nelson <mark.nelson@xxxxxxxxxxx>:
It would be very interesting to hear how SDP does. With IPoIB I've gotten
about 2GB/s on QDR with Ceph, which is roughly also what I can get in an
ideal round-robin setup with 2 bonded 10GbE links.
Yes, but IB costs 1/4 than 10GbE and will be much expandible in future.
QDR shouldn't be that much cheaper. Maybe SDR or DDR. But I agree with
your general sentiment. I think rsockets may be a really good
benefit/cost solution for the short term to get IB support into Ceph.
It sounds like there is some work planned for a kernel implementation
which would be fantastic on the file system side as well.
Mark
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