On Tue, 2009-09-15 at 20:02 +0300, Majed B. wrote: > Out of curiosity, how will you find the sectors/blocks that > reconstruct a certain bad sector? Is the data spread to the same block > number on all disks? Yes. It's a byte-level operation, actually. The only part that's moderately tricky is, on RAID6, to determine which partition the Q drive is. Fortunately, mdadm already contains (almost) all the necessary logic. -- 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