John Hearns wrote:
Joe has just mentioned NFS over RDMA, a subject which I have somewhat of a passing interest in. What's the perceived wisdom on it? Biggest, best shiny new thing on the block? Works just fine? Or should it be in the basement inside a locked filing cabinet in a disused lavatory with a sign saying Beware of the Leopard?
FWIW: we see ~460 MB/s over SDR pairs, going disk to disk (that is real disk on JackRabbit behind the RDMA as opposed to ram disk or null devices which give obscenely fast, and practically unattainable numbers in real world scenarios).
We have wedged one machine running it, requiring a LART (reset button press) on the client side. On the server side, it still is finicky but this is mostly on initial mount.
Requires mount-utils of 1.1.1 or higher (1.1.2 or higher is recommended). Requires kernels of 2.6.25 or higher on both sides due to in kernel support. Not sure if the OFED stack does some sort of magic here for people.
-- Joseph Landman, Ph.D Founder and CEO Scalable Informatics LLC, email: [EMAIL PROTECTED] web : http://www.scalableinformatics.com http://jackrabbit.scalableinformatics.com phone: +1 734 786 8423 x121 fax : +1 866 888 3112 cell : +1 734 612 4615 _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
