Chris, you will see the help of stripe when you perform IO where disk head is the bottleneck. For example try to dd a file > 2x RAM size. Then dd with stripe. you will note that the 'rock bottom throughput' is lifted higher with stripe. It also helps when one file is accessed by a LOT of clients so that one machine's IO does not become a bottleneck. avati 2007/11/29, Chris Johnson <johnson@xxxxxxxxxxxxxxxxxxx>: > > Hi again, > > So I did my dd read test of my 24MB file on a simple two brick > stripe. Nothing fancy. Two bricks and the stripe define on the server > side. Client side mounts the remote stripe. Default block size, > 128KB. > > No difference between that and my single brick test as far as > time goes. What's striping supposed to get me? I thought it was > drives heads. Or am I missing something again? > > ------------------------------------------------------------------------------- > > Chris Johnson |Internet: johnson@xxxxxxxxxxxxxxxxxxx > Systems Administrator |Web: http://www.nmr.mgh.harvard.edu/~johnson > <http://www.nmr.mgh.harvard.edu/%7Ejohnson> > NMR Center |Voice: 617.726.0949 > Mass. General Hospital |FAX: 617.726.7422 > 149 (2301) 13th Street |Survival, all by it self, isn't worth it. > Charlestown, MA., 02129 USA | Me > > ------------------------------------------------------------------------------- > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel > -- It always takes longer than you expect, even when you take into account Hofstadter's Law. -- Hofstadter's Law
