Out of space on Time Machine backup, but...
I have several drives connected to my Mac (totaling about 17TB). I have a 14TB Time Machine backup drive.
At first, I excluded one of my large 8TB drives from TM. I figured I would back up everything except that. That worked fine.
Then, I realized that many of my drives aren't full, so once taking into account empty space, maybe I could get all the drives backed up to the 14TB TM backup drive.
I tried this, but I did get a "not enough space" error. Fair enough.
So I went into the Time Machine prefs, and re-excluded that 8TB drive from TM.
But now, when I start up TM backups, it keeps telling me "there isn't enough space."
The only explanation for this is: it did start to try to back up that 8TB drive, but now that I've removed that 8TB drive from the TM backup, it may not be smart enough to remove that data from the TM backup, which now means that TM can't continue to do regular backups.
What do I do? Do I have to wipe the entire TM backup and start from scratch again? (I hope not, because it's a lot of data to have to transfer again!)
MacBook Pro