Hi,
I'm using one of these with only a minor problem. Every time following a reboot of the e-smith box the scheduled backup will fail every single time (with a broken pipe error) until I have carried out a manual backup ( . /sbin/e-smith/backup ). After this scheduled backups will continue normally until the server is next rebooted. It's only been a minor niggle to me (as the e-smith box is very rarely down), so I haven't even bothered to find a cure! If anyone has one please reply!
Other than that it works extremely well. All I did was shutdown, plug in the drive and restart! If you need any more info please drop me an e-mail.
Richard