Magnets

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Revision as of 13:04, 2 December 2008

Magnets are the rock.

So why are they not more common?

  • Paranoia about debitcard wiping? (I know I'd love to have a wallet which self-closed with use of magnets.
  • Paranoia about hard drives.

What I have never seen is testing of magnets on drives. Now, I have alot of nice strong rare-earth magnets, and I have some old drives which are all but ready to be decomissioned.

Testing external magnetic effects on Hard drives

  1. setup computer with an OS and boot drive.
  2. attach drive-to-test
  3. format drive
  4. write data, md5sum written data
  5. bring magnets to drive
  6. md5sum data again to check against bit corruption
  7. consider 'spamsum' to check for how MUCH of the data is corrupted.
  • consider applying all this in a loop which runs constant, generating files (/proc/partitions), md5sum, wait for magnets, md5sum again, delete and repeat
  • 10meg files?
  • effects of magnets in use as files are written as well as after wrtiting is complete
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