dd is so slow on my SCSI disc

[Mike Jeays]

On Mon, 2005-08-22 at 20:57, Danny MacMillan wrote:
> Sebastian Pahlke wrote:
> > Hi all,
> > 
> > I'm trying to "clean" a disc before selling them:
> > 
> > dd if=/dev/zero of=/dev/da0
> 
> You may want to consider using /dev/random instead of, or in combination
> with, /dev/zero.  Zeroing out a disk isn't a significant barrier to
> forensic analysis.
> 
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Using /dev/random is much, much slower than /dev/zero.