2017-06-29 12:10 GMT+02:00 Reindl Harald <h.reindl@xxxxxxxxxxxxx>: > there is nothing like "unused part of the array" since the linux-raid-layer > knows nothing about the filesystem on top and hence a raid-check (scrub) > reads every block as said hardware controller Yes, this during a scrub. Without a scrub, kernel know nothing about an unused part of the array. Let's assume a unreadable sector is found during a scrub. What happens? mdadm kick-out the disk from the array? It tried to reallocate the failed sector somewhere keeping the disk up and running (and thus, resolving the URE that would prevent a successful resync?) -- 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
