Hi,

> could anybode point me somewhere?

Theres some good stuff in O'Reilly's `Essential System
Administration' or `UNIX backup and recovery'.  Check
out Amazon or OReilly's web site for these (hardcopy
only I think):-

     http://www.amazon.com/
     http://www.oreilly.com/

I haven't found anything better on the internet, but
there is probably something out there.  Typing `dump'
in google is probably a bad idea :)

HtH,

- Chris.