disk scrubbing

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

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