Storage Management

Storage Management is a middleware software. It is used by various Datavard products for a seamless connection to secondary databases or storages.

This document describes individual storages, their parameters, minimal requirements and setup procedures.

Technical Overview

Datavard Storage Management (SM) is a gateway between SAP and External Storages.

In most cases secondary DB connection, defined in SAP, is used to access External Storage.

Alternative way is, when SAP is accessing External Storage via intermediate SM module in specific cases, when accessing special Big Data technologies.

Communication flow 

SM translates ABAP commands into DB specific language.

SAP system, when accessing External Database uses Storage management. Storage management translate to DB specific command data request from SAP. Based on the configuration, the DB command is executed via Open SQL or Native SQL interface. 

Software layout diagram

The modules stack of SM implementation logic.

SM External Metadata - software layer responsible for management of storage metadata. For example special mapping between External Storage structures and SAP structures.

SM External Reader - software layer responsible for reading from External Storage. For example, special translation of SAP read command into DB specific DMS statements. 

SM External Writer - software layer responsible for writing into External Storage. For example, special translation of SAP write commands into DB specific DMS statements. 

SM Storage Setup - Setup of individual storages/storage-id(s) is described in the sub-pages of this document.