On Wed, Jun 09, 2004 at 01:40:35PM -0400, Ben Pitzer wrote:
> Not exactly. Bits can still be picked up from various inodes,
> unfortunately, often enough to piece together an entire file. Basically,
> the process you describe would have to be done about 6 or 7 times to have
> serious efficacy.
By what? You have written zeros to the whole disc surface (omitting
bad/spare block regions, head/track alignment issues, etc). If you read
from that sector the drive is going to give you a zero. We're not talking
about writing within the context of a filesystem, we're just scribbling
across the whole user-accessible surface. There won't be an inode
structure left to recover bits from.
Again, this is assuming the normal drive electronics. If someone attaches
a spectrum analyzer to the drive heads then they can look for data
directly. But this is not likely to be a problem unless your drives are
known to contain very interesting/valuable data that would make them worth
the effort.
--Brian
--
Question with boldness even the existence of a god;
because if there be one he must approve of the
homage of reason more than that of blindfolded fear.
--Thomas Jefferson, Aug. 10, 1787
Brian Daniels [EMAIL PROTECTED]
http://www.eviloverlord.net
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