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To: freebsd-questions@freebsd.org, "Jakub Lach" <jakub_lach@mailplus.pl>
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From: "Michael Ross" <gmx@ross.cx>
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Subject: Re: fsck on FAT32 filesystem?
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Am 19.07.2012, 13:27 Uhr, schrieb Jakub Lach <jakub_lach@mailplus.pl>:

> This topic went totally off, but anyway there are interesting bits,
> do you say that e.g. Gutmann method is totally unneeded?
>

You may be interested in the epilogue to Gutmann's paper:

http://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html#Epilogue

Quote:
"For any modern PRML/EPRML drive, a few passes of random scrubbing is the  
best you can do. As the paper says, "A good scrubbing with random data  
will do about as well as can be expected". This was true in 1996, and is  
still true now."


Nice picture:
http://en.wikipedia.org/wiki/File:MFM_AFM_JANUSZ_REBIS_INFOCENTRE_PL_HDD_MAGNETIC_MEMORY_EVOLUTION.png


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