Overview
SAP HANA is an in-memory database for performing real-time data analysis and development of applications on the highest point of real-time data. SAP HANA administration manages to oversee SAP HANA system in a single and distributed system condition. Each HANA system can contain multi-node architecture with every node containing different processors for quick speed data analysis and real-time data provisioning. You can utilize Smart information access to get the information from the non-SAP system without bringing in the information to HANA database, and virtual tables can be utilized to perform read/write data operations.
SAP HANA Administration includes the following activities:
• SAP HANA Lifecycle Management
• SAP HANA Administration Tools
• SAP HANA multiple host system management
• SAP HANA Backup and Recovery Management
• SAP HANA System Management and Availability
• SAP HANA Data Provisioning and Integration with non-SAP
• SAP HANA Security and User Management systems
Each SAP system contains many servers and it can be checked in HANA Studio under Administration tab. SAP HANA Studio includes Administration Perspective (default) to handle all admin tasks in HANA systems.
SAP HANA Admin ─ Architecture Overview
In SAP HANA system architecture, it includes all the server components that get installed at the time of installation. Every server has defined the set of tasks and several services are run for each server in a SAP HANA distributed environment.
The most important server system and the heart of HANA system are the Index server. This server is responsible for processing SQL/MDX statement using engines in the Index server. It also includes Session and Transaction Manager to maintain track of running and completed transactions.
SAP HANA Admin ─ Multitenant Database
It is possible to set up multiple databases into a single HANA system. When you install SAP HANA system in multiple container modes, you can setup multiple isolated databases in single SAP HANA system. This is called Multitenant database containers.
You can likewise undercover a single container HANA system to different compartment databases HANA system. In different compartment HANA system, each database keeps running on a similar infrastructure and utilizations similar computing resources. However, each database contains following components:
• Database Users
• Catalog
• Repository
• Traces and Logs
• Backups
• Persistence
All the database objects - tables, database views, schemas, SQL procedures - are separate for each database. You can also perform cross-database functions in the multitenant database. In SAP HANA system, it contains many servers - Preprocessor, Name Server, Index Server, and XS Server. With multiple container databases, distinct combinations of the above servers are used. Preprocessor and Compile server keeps running on system databases as they don't contain endure information. Each inhabitant database contains its own index server and SAP HANA Classic Server keeps running on the Index server of occupant database by default. Name server keeps up the landscape details of the system and the system databases run the Name server. The Name server of multitenant databases doesn't contain topology data and this data is put away in tenant database list.
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