Justin Piszcz wrote: > Should I be worried? > > Fri Feb 22 20:00:05 EST 2008: Executing RAID health check for /dev/md3... > Fri Feb 22 21:00:06 EST 2008: cat /sys/block/md3/md/mismatch_cnt > Fri Feb 22 21:00:06 EST 2008: 936 > Fri Feb 22 21:00:09 EST 2008: Executing repair on /dev/md3 > Fri Feb 22 22:00:10 EST 2008: cat /sys/block/md3/md/mismatch_cnt > Fri Feb 22 22:00:10 EST 2008: 936 Your /dev/md3 is a swap, right? If it's swap, it's quite common to see mismatches here. I don't know why, and I don't think it's correct (there should be a bug somewhere). If it's not swap, there should be no mismatches, UNLESS you initially built your array with --assume-clean. In any case it's good to understand where those mismatches comes from in the first place. As of the difference (or, rather, lack thereof) of the mismatched blocks after check and repair - that's exactly what expected. Check found 936 mismatches, and repair corrected exactly the same amount of them. I.e., if you run check again after repair, you should see 0 mismatches. /mjt - 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
