external drive shows disk activity for several minutes after time machine completes backup; what's going on?
I'm curious. Why does the external drive continue to show disk activity after a time machine backup is complete? I sometimes wait for it to quit before ejecting; other times I eject after the backup is done. Doesn't seem to make a difference in the backup data. I don't recall this happening with my old MacBook Pro.
Mac Air M1; OS 11.4; HITACHI 1TB HDD
thanks for any information...
MacBook Air 13″, macOS 11.4