data leads a life of its own.
Backups. by Jamie “Shut up. I know things. You will listen to me. Do it anyway.” Zawinski » http://www.jwz.org/doc/backups.html
block by block or http://www.linux-backup.net/
rsync -avz -e ssh [user@host:path] [user@host:path]
using dvd-/+R on liquid.local to make mac/linux compatible backups to dvd
# mkisofs -r -apple -mac-name -o '/tmp/[image].img' /path/to/stuff # dvdrecord -dev=/dev/hdb -dao -overburn /tmp/[image].img
seems to work well, is a syncroniser which propogates changes in both directions, using the same algorithm as rsync.
eg. unison a.tmp ssh:firstname.lastname@example.org/path/to/a.tmp
carbon copy cloner, and/or psync does most of it. ,. http://www.bombich.com/software/ccc.html
CDR / DVD / etc+
using DV tape
[NOTE: should include disk recovery notes, and using dd, ddrescue, testdisk and duplicity – nik gaffney]