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bad sectors ide drive

Message-ID: <38D2D18C.FBD5B7E7@mail.com> 
Date: Fri, 17 Mar 2000 17:45:00 -0700
From: Warren Young <tangent@mail.com>
Newsgroups: comp.unix.sco.misc
Subject: Re: scsi vs ide
References: <01bf9040$62b810c0$b41b063e@travis>
<38D28854.2D8DF2B@aplawrence.com>
<zmxA4.3823$17.141627@news4.giganews.com> 
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cdlvj wrote:
> 
> I would also add mapping of bad tracks, something that ide never used to do,
> maybe now it does.
> Does anyone know if IDE can map badtracks?

Bad sectors, yes.  Not entire bad tracks, but I can't imagine why you'd
want to ignore an entire track just because a few sectors in it are bad.

If you go to www.grc.com and read about the modern versions of Spinrite,
you see where they talk a lot about all the contortions they have to go
through to get the hard disk to _not_ do its own bad block mapping,
because that confuses Spinrite.  

Modern IDE will automatcially translate a request for a bad sector to
the location where it moved the data, without the host controller even
noticing.  Spinrite can disable this functionality on some drives, but
others (WDC, cough, cough) won't play along.
-- 
= Warren -- See the *ix pages at http://www.cyberport.com/~tangent/ix/
= 
= ICBM Address: 36.8274040 N, 108.0204086 W, alt. 1714m

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