[lug] redhat install

[j davis]

well, i already returned the drive and got a new one.....so it sounds
like this was a freakish incident. I hope this new drive doesn,t give me any
issues.

thanks for the help,
jd

>From: John Karns <jkarns at csd.net>
>Reply-To: lug at lug.boulder.co.us
>To: <lug at lug.boulder.co.us>
>Subject: Re: [lug] redhat install
>Date: Sat, 13 Jul 2002 11:26:55 -0500 (COT)
>
>On Fri, 12 Jul 2002, J. Wayde Allen said:
>
> > On Thu, 11 Jul 2002, j davis wrote:
> >
> > > its ide :(  was a brand new w.d.40 gig right out the box....I have 
>installed
> > > before without preformating my disk....
> >
> > I was referring to the low level formating of the drive
> > <http://www.webopedia.com/TERM/L/low_level_format.html>.  For IDE disks
> > this is done at the factory.  If somehow that got screwed up I think you
> > have a definite problem.  Usually SCSI controllers have the ability to
> > create a low level format.  I'm not aware of such capability in IDE
> > controllers, but there may be a way.
>
>AFAIK, the SCSI API or standard instruction set includes a low level
>format instruction.  So the controller just says "do a low level format".
>And most if not all SCSI hd's have the code on board to do it.  So that's
>why almost all SCSI controllers include the feature.
>
>OTOH, the IDE hd's don't support this, and one needs to have access to the
>proprietary binary which is specific to the particular drive.  The mfr's
>used to make such binaries available for DL, but this seems to have
>changed; supposedly because ATAPI drives have the feature of auto
>detecting low level r/w problems and compensate by updating the bad sector
>map accordingly.  The idea I suppose is that problem sectors will arise on
>a more or less random and occasional basis.
>
>But for situations where the drive has suffered damage from a shock and
>thus sustained damage to larger areas, a low level format can save a lot
>of time.  One way of triggering this feature of the hd is to run a surface
>scan such as the dos scandisk utility.
>
>----------------------------------------------------------------
>John Karns                                        jkarns at csd.net
>
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thanks,
jd

jd at taproot.bz
http://www.taproot.bz

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