There is a bug in filetool.sh. If you specify a backup device, it is not used (see below). This also affects backups that are initiated by the filetool FLTK GUI app since it calls filetool.sh.
$ sudo filetool.sh backup hda1/backuptest
Backing up files to /mnt/hda1/tce mounted over device /dev/hda1 Done.
This can be corrected by changing the two "$3" references in the filetool.sh to "$2".
Thanks,
Brian