I have a question for anyone who has upgraded to Leopard, is using Time Machine, and has more than one external drive attached. Does Time Machine backup your other external drives, or just your internal drive?
Example: Let’s say you have an iMac with an external drive (A) attached containing all of your active files. You then attach another drive (B) to use as your Time Machine backup drive. Is Time Machine pulling files from Drive A?
I can’t seem to find the answer to this anywhere. One of the guys at the Apple store thought that TM only pulled from your internal drive, but he wasn’t sure. If this is true, than Time Machine just became totally unusable for me. All of my files are located on externals, including my iTunes and iPhoto libraries.
If anyone can shed some light on this it would be greatly appreciated.
UPDATE: Thanks to the comments by bernd and Dave, it looks like the answer is yes… Time Machine will pull from other external drives. I’m glad the Apple store guy was wrong. :)
UPDATE #2: According to this comment over at The Apple Blog, non Time Machine external drives are automatically put into the exclude list. If you want your external to be backed up, you need to open Time Machine and remove it from the list.