HANA
as data management platform needs to connect to other data sources to get a
data. There are many integration patterns to follow to enable the connection.
There is an ETL processing, real time replication, data integration etc. Each of
them has its own advantages as well as disadvantages. With the introduction of SAP
HANA Smart Data Integration (SDI) the SAP is pursuing to get the best of some
of them.
SAP
Smart data integration (SDI) is an extension of SAP
HANA Smart Data Access (SDA). The SDA leverages the concept of virtual
tables (data federation type of thing). That means a data replication is eliminated
by providing a virtual layer that abstracts the underlying data sources. Metadata
of tables of the source system are imported as virtual tables into the HANA. On
top of the SDA the SDI brings broader set of preinstalled adapters from Data Provisioning Agent (DP Agent) component.
The adapters in case of the SDI are no longer part of HANA DB. They run as
separate processes in DP Agent component.
The
SDI is part of the Enterprise Information Management (EIM) solution of SAP. Its
purpose is to connect data sources to the HANA, provision data from them and
load the data from them to HANA.
As
the SDI brings more functions into the EIM process, some customers are opting
for this option. Therefore e.g. in SAP BW area they are migrating the SDA based
data sources to the SDI one.
SDA is
available since SAP HANA 1.0 SPS06
SDI is
available since SAP HANA 1.0 SPS09
More
information:
2400022 - FAQ: SAP HANA Smart Data
Integration (SDI)
2180119 - FAQ: SAP HANA Smart Data
Access
2600176 – SAP HANA Smart Data
Access Supported Remote Sources
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