Petsider,
Since no one has replied, and you have a not responded to requests for as more Information, I thought I might take a crack at answering your question. No matter what backup utility you use, you have to back up to some other media such as another hard drive, MobileMe, memory sticks, or optical discs (CD/DVD). So the answer to your is a YES qualified by which particular backup device option you choose. Backing up to the same volume or drive is relatively pointless as you will most likely need the a backup in the event the volume gets trashed or the drive fails this destroying both the original and backup at the same time.
Time Machine assumes the use of a second hard drive.
Last edited by joemikeb; 12/06/10 04:36 PM.