To prevent all caches added during a scan from expiring on the same day, caches expire randomly within the maximum number of days you specified. For example, if 500 caches were added to the cache today and the maximum number of days you specified is 10, a fraction of the caches will expire the next day and the majority will expire on the succeeding days. On the 10th day, all caches that remain will expire.
Apply to All Agents: Applies settings to all existing agents and to any new agent added to an existing/future domain. Future domains are domains not yet created at the time you configured the settings.
Apply to Future Domains Only: Applies settings only to agents added to future domains. This option will not apply settings to new agents added to an existing domain.