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Remapping bad sectors - possible manually?

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Veda Chang

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Apr 22, 1995, 3:00:00 AM4/22/95
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I've got a bad sector on my hard drive which I can't remap or
mask off with either Speed Disk or Hard Disk Tools 1.5 (PE).

Initially, there were Finder errors when it tried to write files
to the remaining free space on the hard disk.

Eventually, I managed to fool it into writing a small file
onto the defective sector - at least I can now use the
remaining free space on the disk. Disk Doctor knows the file
has errors in it and asks that it be deleted. Speed Disk can't
see it until it tries to defragment the disk - at which stage
it recovers without error but doesn't mask the sector off.

HDT 1.5 PE can't see the bad sector at all.

Anyone know of a way of remapping or marking off the sector -
even manually since I know it's physical address. The Sector
Editor in Norton's doesn't work BTW.

Thanks for any help.

Veda
vmc...@ariel.ucs.unimelb.EDU.AU


Randy Shackelford

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Apr 24, 1995, 3:00:00 AM4/24/95
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Veda Chang (vmc...@ariel.ucs.unimelb.EDU.AU) wrote:
: I've got a bad sector on my hard drive which I can't remap or

I don't know of a way on a Mac, but I have an Apple II program that can
reassign bad blocks on a SCSI drive at the hardware level. I've used it to
cure a few bad blocks over the years.
--
Randy Shackelford I was internet
sh...@southwind.net when internet wasn't cool

Michael Schliebner

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May 2, 1995, 3:00:00 AM5/2/95
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Hi Randy

I' ve been using a SCSI tool called Eurotec formatter to reassign bad
blocks on removable 44/88 Syquest Cartridges manually. The disk crashed
then again, because every headcrash supplies little surfacematerial on
the disk. The head is able to fly above these stones, but crashe right after
them and then again supplies new material... . So once you had a crash it
is likely to happen again. The SQC 44/88 i "repaired" worked, but i
removed them, since they contained ISO 9000 material and my company was
just about to get certified.
I'm not sure wether EF accepts harddiscs but if you want to i can try to
get you a copy. Hope this helps you a little .(Excuse my bad english, i'm
klingonian {{{;o))
Michael(87...@fhd-stuttgart.de)

Fred Roberts

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May 2, 1995, 3:00:00 AM5/2/95
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>Hi Randy

>I' ve been using a SCSI tool called Eurotec formatter to reassign bad

blocks...


>I'm not sure wether EF accepts harddiscs but if you want to i can try to
>get you a copy. Hope this helps you a little .(Excuse my bad english, i'm
>klingonian {{{;o))
>Michael(87...@fhd-stuttgart.de)

Yes, Eurotec Formatter suports hard drives as well. My company wrote the
software for ComputerWorks in Germany. We sell it in the USA under the name
"FormatterOne Pro." You can get a registered copy from us for just $49.

Fred Roberts
Software Architects
(206) 487-0122
Sa...@Softarch.Com

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