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From: robertharvey on 28 Jan 2008 09:31
On 28 Jan, 09:44, peter pilsl <pi...(a)goldfisch.at> wrote:

> I could now start dealing with a own set of dd-commands, but maybe there
> is someone who has to deal with this frequently and knows a proven
> reliable solution.

Gas axe. You know it makes sense.
From: Wolfgang Draxinger on 28 Jan 2008 10:37
peter pilsl wrote:

> Drilling is an option, but to be frank: I dont know how to do
> it and how secure/reliable it is. If someone recommends
> drilling, please dont forget to mention the points where the
> drilling-fun is best ;) I'm sysadmin and wanna-be-bikemechanic,
> so drilling might be a good sensation.

I'd recommend to open the Harddrive, remove the platters, and
scratch them (the platters) with Brillo/Ako-Pads

http://en.wikipedia.org/wiki/Brillo_Pad
http://de.wikipedia.org/wiki/Ako-Pads

I for myself would also dismount the head drive galvanometers.
The magnets in those are plenty of fun, but a danger to any
magnetic media and CRTs, which get get close to them in the
wrong angle.

Using a sledgehammer on the platters finishes them off
definitely. Be carefull though, some disc manufactuers use glass
a substrace, AFAIK Hitachi is one of them, so be aware of
shards.

Wolfgang Draxinger
--
E-Mail address works, Jabber: hexarith(a)jabber.org, ICQ: 134682867

From: ray on 28 Jan 2008 11:10
On Mon, 28 Jan 2008 10:44:48 +0100, peter pilsl wrote:

> I have several broken harddisks. (increasing amount of badblocks or
> I/O-errors all the time, S.M.A.R.T-error-count >60.000 and rising ...)
>
> The harddisks are all on a staple and are ready for the Trash. However:
> before dumping I need to wipe them, cause they still contain sensitive
> data.
>
> How to wipe a broken disk? I tried COPYWIPE from ultimatebootdisk as my
> preferred solution, but it takes ages or hangs.
>
> I could now start dealing with a own set of dd-commands, but maybe there
> is someone who has to deal with this frequently and knows a proven
> reliable solution.
>
> Drilling is an option, but to be frank: I dont know how to do it and how
> secure/reliable it is. If someone recommends drilling, please dont
> forget to mention the points where the drilling-fun is best ;) I'm
> sysadmin and wanna-be-bikemechanic, so drilling might be a good
> sensation.
>
> thnx,
> peter

An acetylene torch would work quite well.

I expect you are seeing the 'hangs' because it encounters bad blocks. I'd
either disassemble and use for jewelery or destroy beyond all recognition.
From: Hans Merk on 28 Jan 2008 13:08
On 2008-01-28, peter pilsl <pilsl(a)goldfisch.at> wrote:
>
> How to wipe a broken disk? I tried COPYWIPE from ultimatebootdisk as my
> preferred solution, but it takes ages or hangs.

I guess that any kind of wiping program won't wipe the bad blocks.
Also keep in mind that disks have backup tracks to be more fail safe.

I would strongly recommend to apply high temperature to these disks
if you want to be _sure_ that no data can be recovered. Any kind of
mechanical destruction doesn't wipe the magentical information.
Thus, it's theoretical possible to recover information.

High temperatures that reach the curie point of your disks definetly
wipe all magentic information. So, using a welding device is the
right thing :-)

PS. Never ever underestimate your enemy!

--
Hans 'the paranoid' Merk
From: Bluejay on 28 Jan 2008 20:38
> The harddisks are all on a staple and are ready for the Trash. However:
> before dumping I need to wipe them, cause they still contain sensitive
> data.

The best idea I've come across is to dissolve the platters in a vat of
acid.

I've found that most disk drives are fairly easy to open up with the
removal of a few screws (hint: get a torx driver). With a good pair of
pliers you can turn a platter stack into a passable ashtray (or paper
clip tray, or whatever tray).

The positioner magnets are quite useful for holding things up on a metal
cabinet; in fact, don't use them if you intend to remove them any time
soon. As someone else pointed out, they can be hazardous to some media,
equipment, and fingers if you get in their way.
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