fre, 17.12.2004 kl. 16.26 skrev Arjan van de Ven: > On Fri, 2004-12-17 at 10:05 -0500, gslink wrote: > > The problem with bad sectors is not with sectors that show a write check > > but with those that don't show a write check but are bad. The write > > check on most hard drives is very simple and consists only of parity. > > actually it's a far more sophisticated ECC like code that even allows > single bit errors to be automatically corrected. > > And disks do constant "signal strength" measurements and such and > relocate sectors before things go bad. > > Remember that before using a sector on a new partition, you *always* > write to it (in a filesystem at least), and that's where the bad > situation will be detected *and remapped*. > > If your disk is beyond remapping, the smart daemon (on by default) will > send you a nice mail saying that your disk is going bad. > Very, VERY many people never touches root's mail command...