On Dienstag, 18. Januar 2011 Cory Coager wrote: > Also, I want to stress that I am only having performance issues with > one logical volume, the others seem fine. You're getting 40MB/s write speed and says that's fine? I get more performance from a single SATA desktop drive. Your setup seems to suck extremely somewhere. It already starts with your dd speed. I started it on a virtualized VM on an old, overloaded server and get: # dd if=/dev/zero of=test.dd bs=1k count=1M 1048576+0 Datensätze ein 1048576+0 Datensätze aus 1073741824 Bytes (1,1 GB) kopiert, 10,9992 s, 97,6 MB/s This is a hardware RAID 6 with just 8x 10krpm WD SATA drives. Try to look into general I/O problems. Maybe you can try to boot from an actual linux CD with kernel >2.6.30 to see if that helps performance. Maybe one or more disks in your array are dead and the controller is crying for replacement? -- mit freundlichen Grüssen, Michael Monnerie, Ing. BSc it-management Internet Services: Protéger http://proteger.at [gesprochen: Prot-e-schee] Tel: +43 660 / 415 6531 // ****** Radiointerview zum Thema Spam ****** // http://www.it-podcast.at/archiv.html#podcast-100716 // // Haus zu verkaufen: http://zmi.at/langegg/
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