Clone Failing

[Movable Beast]

After having tremendous success with SuperDuper! on a number of small servers that I've set up for my clients, I decided to replace my old backup solution with SD! The server I'm working on runs iTools 7.5 on Mac OS X 10.3.8 and has a lot of files packed onto an 80 GB drive with about 23 GB available. I'm trying to clone the boot drive to another 80 GB drive, but every time I try the backup is failing when only about 65,000 - 67,000 of the files (or about 3.61 GB) out of 1,163,517 files getting copied. The symptom is the same every time - the backup progresses very slowly until it gets to this point, then the count of files evaluated stops and the copy stops. If I don't Stop the backup, things get progressively slower until I am forced to reboot the machine (it's remote, so I have to use my hosting provider's control panel to power down and then power up again). I've tried the standard scripts as well as a script I created to clone just the /Library/Tenon folder and it fails at about the same point every time.

Any ideas?

Steve