On Mon, 1 Feb 2010, Goswin von Brederlow wrote:
It is true that drives do not remap on FAILED reads but that means reads
so broken the ECC can not repair them. Simple bit errors that ECC can
repair the OS never sees. So maybe you just never had a rewrite of a bit
error give a write error?
Could be.
Since the drive has ECC, it would be interesting to see the amount of read
errors ECC has corrected. Would also be interesting to know if the drive
will rewrite a sector if it's ECC corrected, so that ECC doesn't have to
kick in next time (or if they're actually operating in so narrow margins
that they actually use the ECC constantly because the s/n ratio is bad and
that this is part of the design).
--
Mikael Abrahamsson email: swmike@xxxxxxxxx
--
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
