On Mon, 2006-06-19 at 21:42 -0400, Bart Trojanowski wrote: > * Milan Budimirovic <milan [ dot ] budimirovic [ at ] sympatico [ dot ] ca> [060619 20:15]: > > Since you asked: > > > > ********************************************************* > > root@oconnor:/etc# hdparm -tT /dev/sda1 > > > > /dev/sda1: > > Timing cached reads: 4188 MB in 2.00 seconds = 2094.00 MB/sec > > Timing buffered disk reads: 218 MB in 3.01 seconds = 72.43 MB/sec > > > > ********************************************************* > > The numbers are almost identical to software raid > (http://www.jukie.net/~bart/blog/raid10-performance). FWIW I did some testing with bonnie a while ago bit it was more towards different filesystem to use, specially with huge number of files. http://www.techwiz.ca/~peters/File_Benchmark.html Since I'm now running sw raid (3x250g) I could do some bonnie++ on that to. > But I bet you get 0 cpu overhead :) > > > The drives are 160G Seagate SATAII drives. There are 4 drives in a RAID > > 10 configuration. > > Good choice as far as manufacturer goes -- I have a few, and I do > recommended them. > > I still think you should have varied your drives... especially the ones > in the mirror set. Recall my warning from emails ago about drives with > similar serial numbers, coming of the same production line, having the > same flaws. Hopefully I am wrong. > > -Bart > > _______________________________________________ > Linux mailing list > Linux [ at ] lists [ dot ] oclug [ dot ] on [ dot ] ca > http://www.oclug.on.ca/mailman/listinfo/linux