Re: More info on dd? - tqr

From: Michael Stone (mstoneat_private)
Date: Wed Oct 16 2002 - 03:34:36 PDT

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    On Mon, Oct 14, 2002 at 02:34:55PM -0700, Alvin Oga wrote:
    >and i think that software can mark blocks as bad on
    >the drives too .. otherwise, why bother with a bad-block check 
    >during formatting..  
    
    Because 100 years ago when those checks were designed, hard drives did
    not automatically remap bad sectors. Hard drives were also much less
    reliable and had far more bad sectors; it was once normal to have a
    known-bad-sector map handwritten on the drive when you got it from the
    factory. Nowadays running a bad-block check before formatting is just a
    way to kill an afternoon.
    
    Mike Stone
    
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