W liście z wto, 18-01-2005, godz. 20:18, J. Ryan Earl pisze: > I missed that, sounds like you got an IDE concurrency problem. Perhaps you > can't read from both ports for some reason. Don't think it's a raid problem > though. well, it is a raid problem. Check it out. I've ran the following script: hdparm -t /dev/hdg & hdparm -t /dev/hde (hde and hdg creates my md6 array from previous message) And there are results: --disk/hdg----disk/hde- _read write _read write 0 0 : 0 0 40.2M 0 :39.9M 0 53.5M 0 :53.5M 0 51.5M 0 :51.5M 0 13.2M 0 :13.5M 0 0 0 : 0 0 Even if I increase number of reading threads hdparm -t /dev/hdg & hdparm -t /dev/hde & hdparm -t /dev/hdg & hdparm -t /dev/hde the workload is more or less evenly distributed. --disk/hdg----disk/hde- _read write _read write 0 0 : 0 0 40.2M 0 :38.9M 0 7732k 0 :8440k 0 3780k 0 : 928k 0 1280k 0 :2400k 0 2076k 0 : 0 0 0 0 : 0 0 Janusz - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
