SAP
HANA Administration
is an effective database from SAP based on in-memory technology. SAP HANA is an
in-memory database for implementing real-time data analysis and development of
applications on the highest of real-time data. SAP HANA Administration deals
with maintaining SAP HANA system in a single and distributed system
environment. Each SAP HANA system can include multi-node architecture with each
node including various processors for fast speed data analysis and real-time
data provisioning. You can utilize Smart data access to get the data from
non-SAP systems without sending the data to HANA database, and virtual tables
can be utilized to implement read and write data processes.
SAP HANA Administration includes the
following activities:
·
SAP
HANA multiple host System Management
·
SAP
HANA Administration Tools
·
SAP
HANA System Management and Availability
·
SAP
HANA Lifecycle Management
·
SAP
HANA Security and User Management
·
SAP
HANA Backup and Recovery Management
·
SAP
HANA Data Provisioning and Integration with non-SAP systems
Each SAP HANA system contains multiple
servers and it can be checked in HANA Studio under Administration tab. SAP HANA Studio contains Administration
Perspective (default) to manage all admin tasks in HANA systems.
· In
SAP HANA Administration Architecture,
it includes all the server components that get fixed at the time of
installation. Each server has determined the set of tasks and various services
are run for each server in an SAP HANA single and distributed environment.
· The
most important server system and the heart of SAP HANA system is the Index Server.
This server is responsible for processing SQL/MDX statement using engines in
the Index Server. It also contains Session and Transaction Manager to keep
track of completed and running transactions.
· Persistence
Layer in the Index Server is used for backing up data and transaction of log
files.
Following all the key server components
in SAP HANA System, the corresponding services, and OS process details.
Index
Server –
The Index Server contains the actual
data stores and the engines for processing the data. It is responsible for processing
SQL statements using SQL/MDX processors.
Name
Server –
The Name Server owns the information
about the topology of the SAP HANA system. In a distributed system with
instances of the SAP HANA database on multiple hosts, the name server knows
where the components are running and which data is located on which server. To
maintain topology of SAP HANA system it is used to manage all the running
components and data stored on each component.
XS
Classic Server –
SAP HANA Extended Application Services
(SAP HANA XS) is the application server for native SAP HANA-based web
applications. It is installed with the SAP HANA system and allows developers to
write and run SAP HANA-based applications without the need to run an additional
application server. SAP HANA XS is also used to run web-based tools that come
with SAP HANA, for instance for administration, lifecycle management and
development. SAP HANA XS classic is the original implementation of SAP HANA XS.
The XS Classic Server can run as a separate server process or embedded within
the index Server. It can be used to develop and host applications on the top of
SAP HANA system.
Data
Provisioning Server –
The Data Provisioning Server is part of
the SAP HANA smart data integration option for SAP HANA. It is used to provide
SAP HANA smart data access function. It
provides capabilities such as 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.
Preprocessor
Server –
The Preprocessor Server is utilized by
the index server to analyze text data and select the information on which the
text search skills are based.
Compile
Server –
The Compile Server performs the
compilation of stored procedures and programs, for example, SQL Script procedures.
It runs on every host and does not persist data. It is used to perform
compilation of SQL Procedures and doesn’t contain any data.
SAP
Web Dispatcher –
The SAP Web Dispatcher processes inbound
HTTP and HTTPS connections to HANA XS Services.
SAP
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