I'm not sure if this mailing lists is just for the Linux kernel raid so this query does not belong, feel free to tell me where to go. I'm running Ubuntu 8.04 on an HP ProLiant ml350 with an E200i sata raid card. The problem is the I/O wait percentage increases during data transfer. A simple rsync transfer will bring the percent I/O wait value up to the mid-20s to 40s and a little more stress causes the wait percentage to climb to upper 90% range. it appears that most of the I/O wait time is from the disk array because a copy has a similar effect. However, I cannot eliminate some contribution by the networking code. I'm not sure how to debug this. vmstat doesn't show anything extraordinary so I'm left scratching my head. what should I be looking for? Thanks ---eric -- 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
