Experience in the administration of Windows or Linux server systems, databases or web applications
Differentiation from SAP ABAP
The second component of the application layer is the message server. It acts as a kind of "mediator" between the services and the applications.
Information technology plays an even more important role in the age of digitalisation. Innovation without IT is unimaginable. But it is not just technology itself, but also how it is delivered that matters. The SAP basis sees itself as a partner and contact for new SAP technologies. Further details on the recommendation can be found in the Master's thesis in chapters 7.5 and 9.3.
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Management of databases
Using various user, administration and monitoring tools, the SAP Basis system is controlled and managed by an administrator, who is thus responsible for its trouble-free operation. Many companies hand over these tasks to an external service provider.
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.
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