Overwriting a 4096 byte sector harddisk drive with random data

yudi v yudi.tux at gmail.com
Thu Jul 21 10:15:39 UTC 2011


On Thu, Jul 21, 2011 at 8:04 PM, Gilboa Davara <gilboad at gmail.com> wrote:

> On Thu, 2011-07-21 at 19:48 +1000, yudi v wrote:
> > Hi
> > From what  I understand, the first command above will write data in
> > 512 byte blocks, the second one in 1MB blocks, and the third in 4096
> > byte blocks. Right?
>
> Yep.
> The 1M should also yield considerably better performance. (Though the
> random number generator may cap the performance in this case).
>
> - Gilboa
>
> -
>
Sorry, could you please elaborate a bit more on how a higher size block
results in better performance.

-- 
Kind regards,
Yudi
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