Time Machine - Frequently Asked Questions
8. How can I tell what Time Machine is backing-up?
Time Machine - Frequently Asked Questions
8. How can I tell what Time Machine is backing-up?
Time Machine’s "Star Wars" display (question #15) shows a picture of how your system looked at the time of each backup. Sometimes, though, there’s a need to figure out just what was actually backed-up on a particular backup. There are a couple of 3rd-party apps for that:
These show most of the files saved by TM for each backup (excluding some hidden/system files, etc.). This can help you figure out just what is (or is not) being backed-up.
Time Tracker is free, it’s pretty basic but usually works well.
BackupLoupe requires a small payment, but has some additional features.
Note that both these applications work by comparing a backup you select to the one before it. So if you select a large backup, it’s going to take a while to determine, calculate, and display the items.
And you can’t select the oldest backup, since there’s nothing to compare it to.
See Troubleshooting item #A2 for more details.