Hi Patrick - I've seen 1GB/s+ using dated disks/hardware on the pvfs2-Infiniband interface for single clients.
Due to the speed of the disks at the time though the speed broke down with more clients requesting files. I'm sure others have significantly better performance these days on modern hardware, I'm referencing hardware from about 5 years ago. Cheers, ~Kyle Kyle Schochenmaier On Mon, Mar 7, 2011 at 3:51 PM, Patrick J. LoPresti <[email protected]>wrote: > Hello. I have a fairly simple question. > > What is the fastest single-client, single-thread, single-file read > performance anyone has ever observed using PVFS2, and what hardware > did it use? > > I need to be able to read 500 megabytes/second, sustained, from a > single file using a single thread. I have achieved such speeds and > higher, reading 200+ gigabytes sequentially, using a fast RAID and XFS > (i.e., local storage). I would like to replace that design with > something more networked and scalable. But my individual clients > still require 500+ megabyte/second reads. > > If I tie together a half dozen fast OrangeFS servers with 10GigE, will > I be able to serve another half dozen 10GigE clients at 500MB/sec > each? (Again, assuming single-file, single-thread on each client. > Also assume each server can read/write its local store at ~1000 MB/sec > sustained.) > > Finally, and perhaps off-topic for this list... If OrangeFS cannot do > this sort of thing, are there any distributed Linux file systems that > can? > > Thanks. > > - Pat > _______________________________________________ > Pvfs2-users mailing list > [email protected] > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users >
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