oops ... i entered this discussion without fully reading the intro ... i was talking about scsi drive low-leveling ... my ata drives (Seagate's) are different ... don't allow low-level formatting ... zero'ing out does the trick about mapping out the bad sectors ... apologies about not reading the original question more carefully ...

gosh, we're up awfully early ...


On Wednesday, February 4, 2004, at 06:30 AM, nathan wrote:



-- And you would be correct in that thought. After a bit more research on
tomshardware.com, I've found that IDE/EIDE drives made after '98, will skip
past the cyl/head/boot partition map when doing a lowlevel format.


on 2/4/04 1:22 PM, David P at [EMAIL PROTECTED] wrote:

it does all that too. but IDE drives are a special case. mind you, i think
IDE drives are intelligent enough to "fool" the software into thinking it's
doing a low level format. it steps the heads and stuff just *i think*
doesn't acutally do any wrirting.


----------
From: Bill's In th' House Connelly <[EMAIL PROTECTED]>
To: "PCI PowerMacs" <[EMAIL PROTECTED]>
Subject: Re: Lowlevel format
Date: Wed, Feb 04, 2004, 11:09


I was under the impression that a low-level formatting causes the drive
to "map out" its bad sectors, so that another program won't try to use
them ... sort of makes them invisible ...


maybe just repeating what others have said ...

it does remove any possibility of recovering any data from previous
usage ... which is what some people want, as well ...

Bill

On Wednesday, February 4, 2004, at 04:02 AM, [EMAIL PROTECTED] wrote:


In a message dated 2/4/04 12:56:41 AM, [EMAIL PROTECTED] writes:

<<
if you've got an IDE drive, you can kiss goodbye to all your data. and
the
chance of
reusing the drive as a low level format erases EVERYTHING - including
the
drive's own special software.


Low level format is inhibited by those drives which cannot be low-level
formatted.


Just about every SCSI drive may be low-level formatted, and some
EIDE/UATA
drives can as well. But, most EIDE/UATA drives cannot.

Low level format doesn't change the "factory defects", but it may (and
should) change the "grown defects".


Low level format doesn't change the unchangeable areas reserved for
drive
use, such as the spare cylinders and the maintenance cylinders (where
special
indicators and/or firmware is often located).



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