Sap Hana

Front 1

Index Server

Back 1

Contains the actual data stores and the engines for processing the data

Front 2

XS Server

Back 2

Web application server inside the SAP HANA system. Allows clients to access HANA via HTTP.

Front 3

Name Server

Back 3

Owns the information about the topology of an SAP HANA system. It knows where components are running and which data is located on which server.

Front 4

Extended Store Server

Back 4

Provides a high-performance disk-based column store for very big data up to the petabyte range. Less frequently accessed data not in main memory can be put into the extended store.

Front 5

Data Provisioning Server

Back 5

Part of EIM in SAP HANA. Provides data provisioning in real time and batch mode, real-time data transformations, data quality functions, adapters for various types of remote sources, and an adapter SDK for developing additional adapters.

Front 6

Streaming Cluster

Back 6

Part of the smart data streaming (SDS) and extends the capabilities of SAP Event Stream Processor for consuming data streams and complex event processing.

Front 7

Connection and Session Management

Back 7

Part of the index server. Creates and manages sessions and connections for the database clients.

Front 8

Authentication Component

Back 8

Part of the index server. Invoked when a new connection is established with the HANA system.

Front 9

Authorization Manager

Back 9

Part of the index server. Invoked by other components of the system to check whether the user has the required privileges to execute the requested operations.

Front 10

Transaction Manager

Back 10

Part of the index server. The component that coordinates transactions, controls, transactional isolation, and keeps track of running and closed transactions.