Backup/restore and disaster recovery
Implement notes
PROJECT HISTORIES: THE SAP basis OF TOMORROW An entry in the Forum Infrastructure and Operations within the DSAGNet drew attention to the problem of the SAP basis as described above. This led to a lively discussion, which attracted a lot of interest from the members of the DSAM. Building on the interest and need for action of the member companies, a project was initiated by the DSAG as well as by the SAP, which should deal with the future of the SAP basis. Several companies were invited to participate and their willingness to participate actively was questioned in a DSAG survey. The first project meeting took place within the framework of the DSAG Annual Congress in Bremen in 2015. As a result, regular events took place at the SAP office in Freiberg am Neckar and St Leon-Rot, with the participation of up to 15 companies. In the project "the SAP basis of Tomorrow", current questions of the companies as well as the question of the SAP basis of the future were discussed and worked out with regard to the IT landscape, processes and organisational structure. A master's thesis was initiated to document and prepare the results as well as to examine the topic in scientific terms in parallel with the project. This was made at the University of Applied Sciences Würzburg-Schweinfurt as part of the Master's programme in Information Systems with Prof. Dr. Karl Liebschnitel and submitted for evaluation at the end of March 2016.
People tend to forget how important this element of the architecture is. The setup involved often proves to be especially important for companies looking to implement the SAP system for the first time.
Creating a basis for the SAP landscape
For more information about the lowest support package level for SAP ABA and SAP Basis to install an SAP Basis Plug-In, see the SAP Service Marketplace. For more information about the lowest support package level for the corresponding SAP R/3 plug-in, see the SAP Service Marketplace. This level depends on the release of SAP R/3 or SAP R/3 Enterprise.
The Advanced Memory thus contains mainly user contexts of different work processes, if these cannot be loaded completely into the roll area. Since the storage area is accessible for all work processes, the work processes can also access external user contexts that lie here. In addition, the Advanced Memory contains a global area where data can be stored independently of user contexts. The extended memory size is determined by the values of em/initial_size_MB and em/global_area_MB. The first parameter determines the size of the storage area in which user contexts can be stored, and the second determines the size of the global area. Parameters for Private Storage Last but not least, there is the private storage, which is only used when the user context of a work process has used up all the other storage areas available to it, i.e. its share of the extended memory and its rolling area. In this case, the workprocess goes into PRIV mode. A workprocess in private mode is bound to its current user context and will not become free for other tasks until the current request is completed. If it has used up all the private memory allocated to it, the workprocess will then be restarted and the memory released. This behaviour is controlled with the abap/heaplimit parameter. At times, the user context may exceed the value of abap/heaplimit. The parameters abap/heap_area_total, abap/heap_area_dia and abap/heap_area_nondia define an upper limit for private storage. The abap/heap_area_total parameter defines how much private storage all workprocesses can use in total. The parameters abap/heap_area_dia and abap/heap_area_nondia, on the other hand, determine how much private storage a single (non-)dialogue workprocess can use.
"Shortcut for SAP Systems" simplifies tasks in the area of the SAP basis and complements missing functions of the standard.
The SAP Basis is responsible for the smooth operation of the programmes in the SAP system.
On www.sap-corner.de you will also find useful information about SAP basis.
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