TIme Machine misreading external disk capacity
TIme Machine is reading all my external backup disks as being too full to back up to, yet 2 of those disks are completely empty. How do I resolve this, please?
MacBook Air 13″, macOS 11.3
It just occurred to me: Is this saying the backup can't happen because my hard drive is nearly full? That doesn't make sense to me.
Time Machine on APFS creates a snapshot and copies that to the backup drive.
It has to create the snapshot on the source drive.
Snapshots are very small, but they do take up some space.
You may have to move some stuff to an external (or delete some things) before you can back up.