RE: RAID 5 performance problems> I've rebooted with the original Red Hat kernel (2.4.20) and it > recognizes the drives correctly now (UDMA100) but the performance is > still poor Good news; I've finally got the performance up to a good level. Bonnie++ now gives 77MB/sec read and 25MB/sec write speeds. The problem was being caused by a setting in the mainbaord BIOS; "PCI latency timer" had a default value of 0, after changing this to 32 the drive speed (hdparm) doubled and the raid finally performed as it should. I'd like to thank everybody who responded for giving me advice on the problem, I apreciate it greatly. Yours sincerely, Jonathan Vardy - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
