Magento 2 EE offers the ability to use three separate master databases for different functional areas of the Magento application.
Checkout, orders, and product data can all each use a separate master database that you can optionally replicate.
This separation independently scales load from website checkouts, order management operations, website browsing, and merchandising activities, depending on your needs.
The talk will be held in collaboration with Stefano Ferro.
Watch the video interview. (the interview will be uploaded soon)