On Tue, 15 Sep 2009 08:13:08 +0100, Alex Butcher wrote: > IME, discs don't remap after read errors, only on writes. Some may remap after recoverable read errors. However, the RAID code does (I assume - see below) rewrite the data -- which the disk happily acknowledges -- only to report the very same error next time that spot's being read. :-( > Are you sure that refresh-writes triggered by read errors are expected > behaviour of md's RAID5/6 mode? Not 100%, no -- but recovering the data but otherwise ignoring the error (other than increment the error counter) would be a level of foolishness I won't assume of the RAID code's authors. -- Matthias Urlichs -- 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
