>RFD wrote: > >>When you update or install something on your internal drive, do the same on >>your external drive to keep them current (but not until you're sure the >>update or install hasn't caused any problems on the internal drive). > >Use your unix tools. > >rsync -arvz --delete <source> <destination> >run from a daily cron job is quite effective for mirroring data >backups. It is also totally automatic, and if your MTA is >functioning correctly, cron will email you a note outlining what >took place during the backup job. > This may be a little dangerous as rsync doesn't handle resource forks properly. It's probably better to use ditto or psync. And for those who prefer a GUI, Carbon Copy Cloner is a GUI wrapper on top of ditto/psync. Paul --