Re: disk scrubbing

["Jonathan A. Kollasch" <jakllsch%kollasch.net@localhost>]

On Thu, Aug 26, 2021 at 01:31:55PM +0100, Patrick Welche wrote:
> Any thoughts on the pros and cons of
> 
>    # cgdconfig -s cgd0 /dev/sd0e adiantum 256 < /dev/urandom
>    # dd if=/dev/zero of=/dev/rcgd0d bs=64k progress=512
>    # cgdconfig -u cgd0
> 
> vs
> 
>    # dd if=/dev/urandom of=/dev/rsd0e bs=64k progress=512
> 
> ?
> 
> 
> Cheers,
> 
> Patrick

/dev/urandom can be slow at times.  Simply encrypting /dev/zero onto the
blocks to scrub may be faster and will produce similar results.