Banner units are automatically set to archive after the exam period of that semester.
An archived unit can still be accessed by students but they cannot interact with it - they cannot post in forums, attempt quizzes, submit assignments or view their assignment submissions, etc. They can, however, read materials and download any files that have been made available in the unit.
An editing lecturer can choose to un-archive a unit by changing the 'Archived' setting in its unit settings.
Archived units appear as a list in the Navigation menu.