InfluxDB - Home Assistant
https://www.home-assistant.io/integrations/influxdbThe influxdb integration makes it possible to transfer all state changes to an external InfluxDB database. See the official installation documentation for how to set up an InfluxDB database, or there is a community add-on available.. Additionally, you can now make use of an InfluxDB 2.0 installation with this integration. See the official installation instructions for how to set up an …
Database - Home Assistant
https://www.home-assistant.io/docs/backend/databaseDatabase - Home Assistant Database Home Assistant uses database to store events and parametersis for history and tracking. The default database used is SQLite and the database file is stored in your configuration directory (e.g., <path to config dir>/home-assistant_v2.db ); however, other databases can be used.