Auto-deletion will be triggered the moment the disk space usage reaches 80%. Follow the disk capacity on the Settings page. Logs of the first type in the sequence are deleted first, the other logs are deleted one by one until the disk space usage drops to 75 % or until only the logs with the unfinished maximum lifetime for the given log type remain stored.

Set the storage period for the given log type in Settings > Log retention card. The camera log retention time may not be longer than the system and access log retention time.