Initializing to zeroes doesn't seem to address the Frank's requested DoD 5220-22.M specification.

I can presume several things things from the original question, he doesn't have a Type I or Type II degausser, and since he want's to use them again, he's not going to melt them.  And lastly they aren't Top Secret, or he would be asking.

That discards DoD 5220-22.M spec methods "a", "b", and "m" so that only leaves method "d".

Using method "d" has to write random characters.  Since zeroes are not a random character, using Paul's method won't work.

Some other fellow here mentioned creating a huge file, (like axlspace in the MPE Software Manual, only bigger.)  Then fcopy some big program (like nmmgr) to it in a while-endwhile loop until it crashes.  Repeat with smaller chunky files until you fill the gaps.  If you can't build an alxspace big enough to fill all your discs, build another with a different name and repeat.

On second thought, there's enough open source software out there in the PC world to accomplish the task.  Put the drives on the PC first, THEN use the PC software to accomplish the task.  

BT


Tracy Johnson
MSI Schaevitz Sensors 

> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:[log in to unmask]]On
> Behalf Of Paul Christidis
> Sent: Wednesday, August 11, 2004 2:05 PM
> To: [log in to unmask]
> Subject: Re: [HP3000-L] Mounting Old SCSI Drives in a PC
> 
> 
> About 18 months ago we consolidated an HP3000 967/RX onto a 
> 969/220 and
> then donated the 967 to some school.  We did have to 'scrub' the disk
> drives and I used the following method:
> 
> 1. Purged the desired accounts
> 
> 2. Moved the remaining files to LDEV 1 and 2 (used MPEX. 
> Restore can also
> be directed to restore to specific devices)
> 
> 3. Created a unique device class for each one of the 
> remaining disk drives
> (had to use Volutil).
> 
> 4. Built an Image database consisting of a single master and a single
> detail sets, where the capacity of the detail was large 
> enough to occupy
> the entire drive (most of the drive).
> 
> 5. Purged and rebuilt the database a second time.
> 
> 6. Repeated steps 4 and 5 for each of the drives.
> 
> The above scheme relies upon dbutil's functionality of 
> initializing the
> space allocated to a database to binary zeroes.  I had also 
> determined what
> the capacity should be for different disk drives.  I've had 
> some difficulty
> in 'locating' the schema that I had used, I'll post it when I find it.
> 
> Regards
> Paul Christidis
> 
> 
> HP-3000 Systems Discussion <[log in to unmask]> wrote on 
> 08/11/2004
> 10:19:28 AM:
> 
> > Hello,
> >
> > I was wondering if it is all possible to install the old SCSI drives
> > from my HP 3000 in a PC.  If it's possible, what SCSI 
> card(s) and cables
> > would be necessary?  This would be for the purpose of completely
> > scrubbing the drives to DoD 5220-22.M specifications, on the cheap.
> >
> > What kind of drives are they?  Not sure.  I'm not a 
> hardware person, at
> > least w.r.t. the 3000.  DSTAT reports the following drives: 
>  ST15150N,
> > C2490AM, C3010M1, ST34573WD, ST34371W.
> >
> > Although I won't be doing this operation for at least a 
> year, I would
> > like to get an idea of how much this will cost.  If I can't put the
> > drives in a PC, we'll need to find an HP 3000 application 
> that can wipe
> > the drives, or get an outside provider to degauss them (which isn't
> > preferable, because I would like the drives to be usable afterward).
> >
> > Thanks,
> >
> > Art Frank
> > Manager of Information Systems
> > OHSU Foundation
> > [log in to unmask]
> > (503) 220-8320
> >
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