How do I set up file deletion quotas in the repository?

You need to go into device configuration menu, and go to the System/System/Delete Files Policy tab

Here you'll be able to configure

• Maximum percentage of occupied space, after exceeding which the deletion of old files will start (Insp.storage)
• Maximum number of files after exceeding which the deletion of the old files will start (Event Files)
• Quota percentage of file type, above which Old Files Deletion will start (Quota of files by type)