On Thu, Sep 23, 2010 at 9:53 PM, Doug Hughes <d...@will.to> wrote: > What size chunks is the application writing? How many files? What size > files? What is the back-end filesystem behind NFS?
I will try to find this out tomorrow (though what I can say right now is that it's an ext3 filesystem). I'm not sure how much we'll know because the particular software that generates this data is... special. The documentation for this application mentions the following particular issues with NFS: - NFS can't make FIFOs (which is mitigated by the fact we store FIFOs on a local partition) - "More important, SOFTWARE uses the mmap() system call on some of the files in the output directory, and mmap)( isn't reliable on an NFS mounted filesystem" (mitigated by.. I'm not sure, I did some googling and that seemed to be fixed in later kernel versions, i.e. *not* RHEL3). _______________________________________________ Tech mailing list Tech@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
