How SAP HANA Works

What is SAP HANA? Which are its components? Also tell me the how SAP HANA works?

[Shaleen]

SAP HANA is an in-memory computing platform that has completely transformed the relational database industry.

It combines database, application processing, and integration services on a single platform.

The heart of SAP HANA Enterprise 1.0 is the SAP In-Memory Database 1.0, a massively parallel processing data store that melds row-based, column-based, and object-based storage techniques.

Other components of SAP HANA Enterprise 1.0 include:

SAP In-Memory Computing Studio,
SAP Host Agent 7.2,
SAPCAR 7.10,
Sybase Replication Server 15,
SAP HANA Load Controller 1.00, and,
SAP Landscape Transformation 1 - SHC for ABA.

SAP HANA runs the SUSE Linux Enterprise Server 11 SP1 operating system.

It is generally delivered as an on-premise appliance and is available now.


How does HANA work-

SAP HANA is designed to replicate and ingest structured data from SAP and non-SAP relational databases, applications, and other systems quickly.

One of three styles of data replication – trigger-based, ETL-based, or log-based - is used depending on the source system and desired use-case.

The replicated data is then stored in RAM rather than loaded onto disk, the traditional form of application data storage.

Because the data is stored in-memory, it can be accessed in near real-time by analytic and transactional applications that sit on top of HANA.