We have checked the following link about recommended server and database settings: https://matomo.org/faq/on-premise/matomo-requirements/.
We have some doubts about the database retention period. For example, for ‘Tracking 100,000 page views per month or less’, is recommended a storage of 50GB. Considering that we keep this monthly page views tracking average forever, how much time would be necessary to exceed this 50GB of storage?