I did some musical HDDs to get my "best" drives to hold a critical md device, then one failed after a power surge. So I bought a new disk and added it, then accidentally marked it as failed in the middle of recovery. I then removed the disk and added it again. I got the message "/dev/sdd re-added to /dev/md1" When I do a cat /proc/mdstat the recovery speed is at 55KB/s and subsequent views of /proc/mdstat show that the speed goes all the way to 12KB/s or lower. I've since removed and re-added the drive a few times, but the same thing happens every time and if I leave everything alone while it resyncs, my CPU usage sky rockets to something like 16.8 23.4 40.5. Any help would be really appreciated as I don't want to loose the "good" drive. I know both have good speeds, because I can write at 4MB/s to ext4/luks on md1 and 15MB/s on /dev/sdd with dd. P.S. could someone also explain to me the difference between md0 and md_d0? -- 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
