Hi guys.
Let me add some info here.
When a drive is formatted, all the contents of the drive are still there.
When you select the ZERO all data option, this effectively makes the
formatter erase all the data on the hard drive, as opposed to just
formatting it. It's all a bit technical, but in computer terminology, when
a file is deleted, what actually happens is that the first header of that
file (in data packet terminology) is rewritten, and the operating system
thinks that file is deleted. Utility programs such as Norton Utilities
effectively rewrite that header and hence are able to recover that file. In
formatting, the process is similar, though not exact. Hence, when the ZERO
all data option is selected, ALL data is rewritten with ZEROES, making
recovery almost impossible. That would be your safest bet.
Boot up with your OS9 CD and run Drive Setup. Then Initialise (or Format,
in PC speak) the drive with the ZERO all data option selected. This will
take a long time. It took almost 1.5 hours for my Pismo's 12GB HDD. So it
should be considerably longer on your 40GB HDD. If you have the OSX CD, you
can run the Drive Utility program from there and do the same as well.
I've not heard about any issues with IDE drives and the ZERO option (I used
to work with Apple's AppleCare in Singapore), so it should not pose any
problems.
Enjoy!
Regards,
Mark.
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<[EMAIL PROTECTED] To: <[EMAIL PROTECTED]>
(G-Books)
.com> cc:
Sent by: Subject: Re: wiping hard drive clean
<[EMAIL PROTECTED]
aunch.com>
(G-Books)
19/11/2002 1223 PM
Please respond to
G-Books
On Monday, November 18, 2002, at 10:55 PM, Laurent Daudelin wrote:
> on 18/11/02 22:42, John Haumann at [EMAIL PROTECTED] wrote:
>
>> On Monday, November 18, 2002, at 08:10 PM, Geoffrey Loeffler wrote:
>>
>>> I have to send my 40 GNX back to trans intl, very loud and clicking
>>> sounds coming out of it right from the start and continued for last 30
>>> days. I need to wipe this drive clean, really clean. Will apples
>>> disk
>>> utility on 10.2 wipe it so no info will be able to be recovered or
>>> seen. If not what is best way delete the data I have on it.
>>> Thanks
>>> Geoff
>>>
>>
>> Select the option to "zero" the drive. That not only releases the
>> directory entries, but writes zeroes to the entire data portion of the
>> disk.
>
> I thought I read somewhere that this option was not well supported with
> IDE
> drives, so that may work or not. The best thing to do would be to write
> all
> over the drive, erasing whatever is on the disk. I have no idea on how
> to do
> that, however. There might be some utilities that would do that, but I
> don't
> know any. Still, try to zero the drive and see what happens.
>
> -Laurent.
>
I haven't installed Jaguar on my macs yet, but in anticipation of making
it the only OS on the machines, I asked an Apple Care guy about wiping
the hd clean. I can't find the index card with the options he mentioned,
but I vaguely remember him telling me that I would need some third party
utility to actually "reinitialize" the drive and that I could only zero
it out without a utility program to actually do more than zero out the
drive. I had that index card laying about for months and must have put
it somewhere "safe", because I can't find it now.
Does this make sense? One has only the option to zero all data? Is this
not as good for the hard drive as reinitializing?
Can anyone set me straight? I thought the difference would be
significant, that reinitializing the hd actually is good for the drive.
Is it a variation of defragmenting?
Thanks!
Donald
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