Re: Wiping Solaris Servers

[vtlists () wyae de]

Greetings!

> I need to find a method of securly wiping Solaris servers using 
the DOD
> standard disk sanitization requirements.

If you're speaking about the Gutman rules: they are valid only and
exclusively for MFM and RLL type of hard discs only - which are out 
of production since ~10 years (the last of those were the 120 *M*B 
discs, IIRC).

Just wipe the discs (in this example: c0t0d0) with

       dd if=/dev/zero of=/dev/rdsk/c0t0d0
resp.   dd if=/dev/zero of=/dev/rdsk/c0t0d0c2


The magnetic bit space in current hard discs is small enough and 
magnetic field weak enough that residuent magnetization nearly is 
undetectable even after the first overwriting - especially in HD 
techniques forced to using probabilistic bit determination due to the 
weak/small bit fields.

If you are paranoid enough, you could repeat overwriting the disc
alternating between if=/dev/zero and if=/dev/random until your
conscience feels at peace. ;-)

Bye

Volker


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