Matt, replies inline. On Sun, Dec 28, 2008 at 4:01 AM, Matt Lawrence <matt.lawrence at tamu.edu>wrote: > I have maintenance windows on Wednesday & Thursday to make changes to > the throughput cluster here and I could use some advice. > > There are 130 system, 126 of them are compute nodes, connected via Gb > ethernet with the head node and fileserver node connected via 10Gb > ethernet. At the moment, my configuration from last summer, which was > done in a hurry, is running really, really slow. > > My hope is to upgrade to 1.4.0, but I'll settle for a release candidate > if I have to. Here is the rough plan for how I'm going to configure it. > > Server: > XFS filesystem -->> io-thread -->> tcp XFS filesystem -->> io-thread -->> write-behind -->> tcp > > > > Client: > brick -->> readahead -->> writebehind > brick -->> io-thread -->> write-behind -->> io-cache -->> readahead > > Should I be considering readahead/writebehind on the server end? > How about threads on the client? > Any other translators I should consider? > > I'm hoping to spend much of Thursday doing performance testing. What > benchmarks do y'all recommend? I was planning on trying iozone, but > could easily be convinced to go with something else. The plan is to > script it to run automatically with a number of different settings for > readahead & writebehind. Any particular words of wisdom? > > Thanks for the help! > > -- Matt > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users > -- gowda -------------- next part -------------- An HTML attachment was scrubbed... URL: http://zresearch.com/pipermail/gluster-users/attachments/20081228/0f70c071/attachment.htm
