On 24/01/17 21:15, Salatiel Filho wrote: > I really think it is very unlikely that two different disks from two > different brands would have problems at exactly the same block. > I have a question, who populates the badblock list ? Is the check > action send to the /sys/block/md??/md/sync_action OR each read error > updates it ? I think it's a known problem - nobody seems to know quite why it happens but when a block is added to the badblocks list it seems to get added to every device. Given that modern hard-drives are supposed to relocate bad blocks and not need a badblock list, I think that's why it's not been found, most people especially those in the know just tend to disable os-level badblocks. Cheers, Wol -- 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