Time Machine 2nd Copy Backup

Question

My question is: is it possible for me to backup a second copy of my computer onto a second hard disk that is partitioned with one partition FAT32 and the other Mac Extended?
I use Time Machine to back up my computer to an external hard drive and it works fine. I am now paranoid and want to have a second backup. I have a second external hard drive that is ready to go - maybe. This second external hard drive is partitioned so that one part is FAT32 for compatibility with a PC. The other partition is Mac Extended (not journaled) as this was the instructions given by Tech Support for this hard drive (WD Passbook Studio). I would like to back up the hard drive to the Apple partition of the second hard drive, and use Time Machine.
In looking through the help files, couldn't find anything about using Time Machine to create backups of the same hard disk on two different hard drives - I could envision that Time Machine might get confused unless it specifically first reads some type of information file when scanning the backup.
Second, there was one discussion file that suggested the external hard drive needs to be formatted HFS. When i tried to format the partitioned external hard drive, it wouldn't allow me to format one partition with Apple Partition map and the other with Master Boot Record (necessary for the FAT partition), so I had to have both as Master Boot Record. However, the Apple partition is still formatted as Mac Extended.

Answer 1

Thanks. I think the solution is to use two different backup programs that backup by different means.
The archive attribute is an attribute with each file (I read through Silverkeeper and it uses this). It has to settings - "a" and "". When you create or edit a file, it is set to "a". When you back it up, the back up program resets it to "". So a backup program can quickly scan the hard drive for all files that are set to "a" and know that only these files were changed.
In non-Time Machine programs, a full backup backs up all files regardless of the attribute setting, and a differential backup backs up all files that have "a" set to it, and resets the "a" to "". Some programs have an additional setting where it backs it up, but does not reset to "a". There are times when this is convenient because it gives you copies of changes made each day since the last full backup (useful for business) but not if you work on a lot of files each day because then it becomes time consuming by the end of the week, unless your backups are run overnight.
Just to make sure, I will try this out and post a message later indicating if this indeed worked.