Re: Blockbusting news, this is important (Re: Why are bad disk sectors numbered strangely, and what happens to them?)

[John Bradford]

> > BTW: Hard drives apparently use more sophisticated algorithms,
> > involving measuring head signal level even when there is no problem
> > reading the data, and eventually remapping a sector on read before the
> > information is lost.
> > 
> 
> Which means cat /dev/hda > /dev/null makes sense in
> cron.weekly...

Indeed.  Some drives can also do a timed defect scan using S.M.A.R.T.

John.
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