A bit ago I covered my plan for a comprehensive backup plan for my Mac. I thought when OS X Mt. Lion (10.8) came out that being able to use 2 Time Machine drives would fix my, one-in one-out, process. However it did not. When you swap back in the drive that’s a month out of date it still doesn’t always pickup where it left off, and to add to that you get a notice every couple days that the other drive is unavailable for backup. So 1 drive at a time is best in my experience.
After swapping the drives most often it freaks out saying the drive is full and seems unable to actually do house cleaning or pickup where it left off. My guess it regards the drive a new backup not a continuation. So I find it best to start anew each month. After swapping … read more