Re: Journaling pointless with today's hard disks?

Pavel Machek
2001-12-04T03:48:44Z

Hi!

> > > Drives should never reassign blocks on read operations, because they'd
> > > take away the chance to try to read that block for say four hours.
> >
> > Why not? If drive gets ECC-correctable read error, it seems to me like
> > good time to reassign.
>
> Because you don't know if it's just some slipped bits, a shutdown during
> write, or an actual fault. When that happens on a verify after write,
> that's indeed reasonable. Otherwise the drive should just mark that
> block as "watch closely on next write".

Or better "write back and verify". You do not want even *ECC
correctable* errors to be on your platters.
Pavel
--
"I do not steal MS software. It is not worth it."
-- Pavel Kankovsky