cp /dev/hda3 /dev/hdb3

[Super Donkey]

Well I'm using (or was using) the infamous fujitsu mpg hard drives, read
about it here:http://www.theinquirer.net/?article=5977

So in my case it's not about HD lifetime, just bad hard drives that could
fail anytime. I had two, one failed after about 6 months and the second
about a month or two ago.

Yes it was stupid to not buy new hard drives earlier but I'm kinda cheap
and wanted to get every last big out of the HD's.

Now I'm using two 80GB maxtor HD's with a three warranty (which makes me
feel safer).