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LINUX-L  2007

LINUX-L 2007

Subject:

Re: Hard Disk Sanitization

From:

Jon Lewis <[log in to unmask]>

Reply-To:

Platform Independent Linux List! <[log in to unmask]>

Date:

Sun, 21 Jan 2007 13:57:32 -0500

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (26 lines)

On Sun, 21 Jan 2007, Matt wrote:

> What are some tools to securely erase a hard disk?

Depends. Do you want the disk to be reusable, or is physical destruction
an option?

For the former, you could overwrite the entire disk with junk (/dev/random
for instance) multiple times, but that's time consuming.

For the latter, 5.56mm rounds will do a number on it, but with the rising
cost and scarcity of quality ammo, that's becoming a less appealing means
for data security, especially if you have many drives to dispose of.

A while back, Atlantic.net needed to dispose of a bunch of old 2GB SCSI
drives. I just whacked each one several times with a big hammer. To get
any data off them, you'd have to disassemble the drive and either somehow
straighten the platters or come up with a means for reading deformed
platters. Probably not worth the effort for 10 year old usenet posts or a
shadow file with passwords nobody uses anymore.

----------------------------------------------------------------------
  Jon Lewis | I route
  Senior Network Engineer | therefore you are
  Atlantic Net |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________

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