What is the primary database used in NSX-T?

The primary database used in NSX-T is the NSX Manager's embedded PostgreSQL database. This choice is correct because NSX-T is designed to manage complex networking and security functionality within a virtualized environment, and PostgreSQL is a robust, open-source relational database that supports the extensive requirements of NSX-T.

PostgreSQL offers several advantages that align well with NSX-T's architecture. Its ability to handle a large amount of structured and unstructured data, coupled with strong concurrency support and transaction integrity, makes it an ideal choice for managing the configuration and operational data that NSX-T relies on. Additionally, it comes pre-integrated with NSX Manager, simplifying deployment and management.

This architecture allows for efficient data storage, retrieval, and manipulation, which is critical for network virtualization and security services that NSX-T provides. Having an embedded database within NSX Manager further streamlines operations, eliminating the need for external database management, which can complicate setup and maintenance.