So, if you whack the drive with a hammer (or drill a hole thru the entire mechanism) the platter can't spin. But can some crafty device still read the undamaged parts of the surface?

Bruce.
----------------------------------------------------------------------------         Bruce J. Senn                      Phone:  (518) 388-6664
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-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Dave
Sent: Wednesday, May 16, 2007 3:41 PM
To: [log in to unmask]
Subject: Re: Deleting data from a HP 3000 disk drives

Peter, All:

Indeed, destroying the discs seems to becoming a more accepted practice.
We have a company in my small town that has a very powerful shredder.
They don't bother to remove the discs, just through the whole unit into
the hopper and it's destroyed.

Of course the majority of the process is tracking and providing an audit
trail that the system was destroyed.

The back end of the process separates the different materials for recycling.

Not sure about a furnace ;-)

Dave Gale

> It used to be 7 writes of white noise.  It's a whole bunch more now.
> The definitive description is here:
> http://www.dtic.mil/whs/directives/corres/html/522022m.htm .  I
> haven't read it, but I do remember that the Pentagon had a disk drive
> grinder at one time, though I am not sure that it hasn't been replaced
> with a special furnace to melt drives down.  My guess is the grinder
> is still in use.
>

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