--- Chris Samuel <[EMAIL PROTECTED]> wrote: > On Fri, 24 Aug 2007, Michael Will wrote: > > > I tested several NFS server configurations with a > 19 node cluster. > > Same, but with 150+ nodes and about 500+ CPUs. > > > The first advise is to stay away from redhat for > file servers since > > they have some bursty I/O bugs and don't support > XFS. > > Amen. > > We've run through Fedora (OK, but release cycle too > quick), Ubuntu > (Dapper has longer support, but a bit flakey) and > now run Debian Etch > (very happy). > > Fedora & Ubuntu were on a pair of IBM e325 with > 2x2.0GHz Opterons and > gigabit ethernet connected through to each side of > an Apple XServe > RAID array. > > Debian is running on an IBM x3550 with a pair of > 3GHz woodcrests and a > couple of bonded gigabit ethernets connected through > via SAS to some > external SATA EXP3000 arrays. We decided to use the > hardware RAID to > make smaller individual RAID5 arrays and then stripe > across them > using the Linux MD driver. Seems to work rather > nicely!
A stock kernel will from Redhat will not give you the performance you need. We use Fedora and patch/configure a standard kernel from kernel.org. On the back end, we are currently using Clariions (3-80) and build smaller LUNs per EMC recommendations and metaLUN them. That really helps performance. Our industry is know for humongous data files. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Beowulf mailing list, [email protected] To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
