During archiving, business complete data, that is, data no longer needed in everyday business processes, is removed from the SAPsystem database and written to either a file system or a WebDAV-based storage system, in the form of XML resources. The data is then deleted from the database.
To implement an archiving strategy, you need to set up storage systems and configure the XML Data Archiving Service.
The following figure shows the necessary elements for data archiving using XML DAS.
1 The diagram only shows SLD connections that are relevant in an XML DAS archiving scenario.
XML DAS archiving is available for application systems that are based on Application Server Java (AS Java). In this scenario you have on the one hand the application system which needs to be relieved of its data volumes, and on the other hand a central XML Data Archiving Service, which is responsible for archiving the information and storing it in either a file or a Web-DAV-based storage system. It also provides the subsequent access to the archived data. Each application system contains an interface used by the applications for the development of archiving programs and for communication with the XML DAS.
To be able to use the XML DAS, you must perform several preparatory tasks, including setting up archive stores in the file or storage system. These tasks are performed in the XML DAS Administration which is part of the SAP NetWeaver Administrator (NWA). Additionally, the System Landscape Directory (SLD) is relevant for all scenarios. When you create new archive stores in the XML DAS Administration, they are registered in SLD.
In an archiving scenario based on AS Java, you have the following elements (represented on the right side of the figure):
The primary tools and functions needed by an administrator are the Java Archiving Cockpit and the XML DAS Administration, which are contained in the NWA. In addition he or she must ensure that a file or WebDAV-based storage system has been set up and is available to the XML DAS as described under Administration of the XML Data Archiving Service . The ILM Store Browser allows you to view the archive hierarchy in the WebDAV-based storage system.
The different tasks involved are described in the following documentation:
Administration of the XML Data Archiving Service : functions and configuration tasks to be carried out before archiving
Java Archiving Cockpit : used to carry out archiving functions, such as writing and deleting, and to monitor archiving sessions.
ILM Store Browser : used to view the archive hierarchy in the WebDAV-based storage system.