[Crunch]

What will happen if a hard disk is left on top of the rear magnet of a speaker? Will it corrupt the data?

[no2pencil]

Try it & find out.

[calvinthedestroyer]

I would say no. but if you were to "wipe" the magnet across the top of the drive you might do some damage. Granted, this will not work if the speaker is shielded.

I'd rather see a drive go up against an EMP.

[no2pencil]

calvinthedestroyer, on 17 June 2010 - 09:32 PM, said:

I'd rather see a drive go up against an EMP.

Or an El Camino.

[calvinthedestroyer]

-face palm-
Electro Magnetic Pulse

[no2pencil]

-face palm-
1964 Chevrolet El Camino

[Crunch]

Is it better to shred the hard disk using software or to use magnetic fields to shred it? (Assuming that by moving the hard disk through the magnetic field that the data would get destroyed.)

[KYA]

Usually people write a series of meaningless data two or three times over the drive. There's software commonly available for such purposes. That would probably be easier then finding a big/string enough magnet to "wipe" the drive (modern drives already have magnets in them).

[no2pencil]

KYA, on 19 June 2010 - 09:55 AM, said:

There's software commonly available for such purposes.

Darik's Boot & Nuke (aka DBAN), is DoD strength software.

[calvinthedestroyer]

Quote

Au-Z-C(Assuming that by moving the hard disk through the magnetic field that the data would get destroyed.)

That's what I ment by wiping the magnet across the drive.

Quote

KYA (modern drives already have magnets in them).

Yes, they do, but again - those magnets are shielded. So they don't affect the platters, they only affect the voice coil.

[CharlieMay]

I can tell you this. I worked in a Heat Treat for 17 years and one of the operations we had was to Magnaflux parts to check for cracks from a quench & temper operation. The basics of magnafluxing is to magnetize the parts while covering them with a solution that is attracted to magnetic fields and shows up as a line under a black light. After the operation, the parts go through a de-mag coil to remove the magnetic fields from the steel. One day, we decided to run a floppy disk and a hard drive through the demag coil just to see the outcome. Neither was affected. So after all my ramblings what have we learned. Nothing more than what No2Pencil stated in the second post on this topic... Try it.

[no2pencil]

CharlieMay, on 22 June 2010 - 07:28 PM, said:

Nothing more than what No2Pencil stated in the second post on this topic... Try it.

& then hit it with a 1964 Chevrolet El Camino.

[calvinthedestroyer]

no2pencil, on 22 June 2010 - 05:30 PM, said:

CharlieMay, on 22 June 2010 - 07:28 PM, said:

Nothing more than what No2Pencil stated in the second post on this topic... Try it.

& then hit it with a 1964 Chevrolet El Camino.

HAHAHAHAHAHAHAHAHAHAHA!