Re: Dying disk and filesystem choice.

[Jens Axboe <axboe@suse.de>]

On Thu, May 24 2001, Andi Kleen wrote:
> On Thu, May 24, 2001 at 12:58:14AM -0600, Andreas Dilger wrote:
> > Well reiserfs is probably a very bad choice at this point.  It
> > does not have any bad blocks support (yet), so as soon as you have
> > a bad block you are stuck.
> 
> reiserfs doesn't, but the HD usually has transparently in its firmware.
> So it hits a bad block; you see an IO error and the next time you hit
> the block the firmware has mapped in a fresh one from its internal
> reserves.

In fact you will typically only see an I/O error if the drive _can't_
remap the sector anymore, because it has run out. No point in reporting
a condition that was recovered.

I'd still say, that if you get bad block errors reported from your disk
it's long overdue for replacement.

-- 
Jens Axboe