I believe when I drive zeros out it does the whole drive not just the parts
that have data on it.  So it will take the same amount of time.

On Fri, Aug 21, 2009 at 11:28 PM, McGrude <mcgr...@gmail.com> wrote:

>
> On Fri, Aug 21, 2009 at 8:21 PM, Jeffrey Engle<macgu...@gmail.com> wrote:
> >
> > Interesting question just came to me, when zeroing a hard drive, does
> > it take longer to zero the drive if the drive is full of data? If the
> > hard drive has let's say 10% percent of data on it, will it zero
> > faster? Jeff
>
> Unlikely that it will take longer or shorter depending on how full the
> disk is if the program used to zero the drive is thorough.  If done
> correctly it will wipe the drive at a low level filling every block
> with zeros.  It is best if it does a patterned sweep seven or more
> times.  It wipes all the space, not just the used space.  Consider a
> file you have deleted -- it isn't "used" space, but it should be
> wiped.
>
> >
>


-- 
www.maryland157.com

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