I understand that writing zeros over the file should permenately delete the 
data but couldn't the data be cached elsewhere on the drive, especially with 
journalling filesystems??
 
 Cheers,
 Ben
 
 "Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
 


----- Original Message ----
From: Dale <[EMAIL PROTECTED]>
To: gentoo-user@lists.gentoo.org
Sent: Tue 31 Jan 2006 02:56:25 PM IST
Subject: Re: [gentoo-user] {OT} Recovering data from a formatted hard disk

Iain Buchanan wrote:

>
>
>I've heard of government departments filing down the old HD's into
>little pieces, then mixing them in cement for the next building project.
>Could be an urban legend though.
>
>All of the above is subject to my own bad memory :)
>  
>

I have heard the same thing.  I have watched some of them on TV get data
off some unbelievable drives.  Some had bent platters, serious
scratches, been formatted a few times etc etc etc,   After all that,
they still got enough of what they wanted.  They put a chemical on one
and you could see the data with your eyes.  It looked like a round bar
code sort of.

Whatever you use, if it does it quickly, it ain't worth the time. 
Really erasing something and rewriting data over it takes a bit of
time.  That little light should be on a while.  I still wouldn't count
on it.  Shreading it and putting it in concrete may be a good idea. 
Maybe putting it in a MRI machine would help too.  I would leave the
room though.  O_O

Dale
:-)

-- 
To err is human, I'm most certainly human.

I have four rigs:

1:  Home built; Abit NF7 ver 2.0 w/ AMD 2500+ CPU, 1GB of ram and right now two 
80GB hard drives.  Named Smoker
2:  Home built; Iwill KK266-R w/ AMD 1GHz CPU, 256MBs of ram and a 4GB drive.  
Named Swifty
3:  Home built; Gigabyte GA-71XE4 w/ 800MHz CPU, 224MBs of ram and a 2.5GB 
drive.  Named Pokey
4:  Compaq Proliant 6000 Server w/ Quad 200MHz CPUs, 128MBs of ram and a 4.3GB 
SCSI drive.  Named Putput

All run Gentoo Linux, all run folding. #1 is my desktop, 2, 3, and 4 are set up 
as servers.  

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