You incur Atlas Data Federation costs for the following items:
Amount of data stored and accessed for Online Archive.
Amount of archived data processed, transferred, and returned when you query your Online Archive. Note that Atlas charges $5.00 per TB of processed data, with a 10 MB minimum processed data per query. You can optionally configure query limits to control data processing charges for your Online Archive.
To learn more about the consumption-based pricing for Online Archives, see the pricing page.
Before querying the archived data, we recommend using the explain method to optimize your queries. To calculate the monthly spend and approximate cost based on usage, consider the typical amount of data processed in the explain results and multiply it by the typical number of queries per month.
To stay abreast of your Online Archive costs, we recommend the following:
Configure billing alerts to avoid unexpected usage and charges.
The federated database instance page for Online Archive displays the amount of data that your federated database instance has processed and returned, and the number of queries run against it. However, it doesn't reflect the cost of your Online Archives, which is available in the Atlas billing page only.