> [ ... ] I tried various ways to fix the issue, one of them was > to removing the bad drive from the array and adding it back. > This forced all sectors to be re-written, and the problem went > away. Lucky, > [ ... ] Now, the same issue happened again - another drive > developed a bad sector, and again, md `repair' action does not > fix it. [ ... ] Thanks for letting us know things work as expected and MD RAID has not developed psychic powers yet :-). Similar reports happen now and then. Some people seem to develop inflated expectations of what a RAID system can do, and how a storage stack works. Perhaps some people imagine that "repair" means "repair disk errors" rather than "repair RAID status". -- 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