I have used dd to overwrite entire drives with 0 before returning to
hd companies in the past.  Supposedly this overwrites every sector
with 0.  In the above scenario though, this would not have worked.

Axton Grams

On 4/28/06, McKenzie, James J C-E LCMC HQISEC/L3
<[EMAIL PROTECTED]> wrote:
> **
>
> One more comment:
>
> There is no way to completely clean a hard drive of data that was written to
> it.  This has been proven with a court case where a pervert was sent to jail
> after a special FBI agency was able to recover evidence from a supposedly
> 'wiped' hard drive (yes, he used DESWIPE, which had overwritten the drive
> seven times.)  They explained that the head drives something like a six-lane
> highway, but due to misalignment of the drive's heads and the track it
> drives, there remains something like a six inch to two feet overrun that the
> head never writes to again.  In this area is where they revovered the
> evidence.
>
> This is why the government requires removal of old hard drives (at least
> where I work) before systems are handed over to non-government entities,
> including the on-base school.
>
> James McKenzie
>
>
> -----Original Message-----
> From: Action Request System discussion list(ARSList)
> To: [email protected]
> Sent: 4/27/2006 11:26 AM
> Subject: Re: DB Scrub
>
>
>
>
> http://www.jetico.com/index.htm#/bcwipe.htm
> This is the dod application for standard Fly in your Soup issue..
> You would still have to remove the data in question.. Remove all the
> backups with that Fly..
> Then Wipe drive and restore older data..
>
> But one thing is for sure.. If it is military stuff... Better follow the
> Instruction or you might find yourself in Ft. Leavenworth..
>
> Not the Visitors section either..
>
>
> Have fun.
>
> -----Original Message-----
> From: Action Request System discussion list(ARSList)
> [mailto:[EMAIL PROTECTED] On Behalf Of L. J. Head
> Sent: Thursday, April 27, 2006 2:00 PM
> To: [email protected]
> Subject: Re: DB Scrub
>
>
>
>
> I am simply trying to generate a list of options with pro/con for each
> to determine how much effort they are interested in going through to
> eliminate data.  But to the best of my knowledge in this type of a
> situation a tape would be magnetically 'cleaned'...or in the case of
> hard drives and such they do a series of 0 and 1 alternating writes to
> all blank space to ensure that data cannot be read....thanks for the
> response
>
> -----Original Message-----
> From: Action Request System discussion list(ARSList)
> [mailto:[EMAIL PROTECTED] On Behalf Of Axton
> Sent: Thursday, April 27, 2006 11:51 AM
> To: [email protected]
> Subject: Re: DB Scrub
>
> If you are using Oracle, you can do a table reorganize.  This compresses
> the data and gives some level of certainty that the data on the physical
> device is overwritten.
>
> What do other apps that fall under this umbrella do to clean data from
> their databases?  Also, how is the data removed from other storage
> mediums (tape, replicated servers, etc)?
>
> Axton Grams
>
> On 4/27/06, L. J. Head <[EMAIL PROTECTED]> wrote:
> > In the DOD arena there are times that data needs to 'disappear'.  I
> > was asked by a customer yesterday what options were available for
> > scrubbing of data.  I offered the ability to delete records in audit
> > trails and the asked a question I had never even considered.  Once
> > Remedy issues the Delete command...and commits the transaction it is
> > deleted out of the table...but what can be done to ensure the data is
> > gone and not just having the pointer to the data removed.  Those in
> > government are familiar with the 'military wipe' type of cleaning
> > utilities.  We are running SQL Server 2000, are there DB commands that
>
> > I can run to perform an online compress or something like that?  TYIA
> >
> >
> ______________________________________________________________________
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> >
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