Archiving and DART
If the additional memory in the Advanced Storage Area is still not sufficient for the user context, the optional second role area can be used. The size of the second roll range is determined by the difference between the parameters ztta/roll_first and ztta/roll_area. Rolling range has been eliminated in kernel release 7.4, so these parameters are obsolete from then on. Instead, the user context is now stored directly in the Advanced Memory.
The core of the three-layer model is the application layer. This consists of one or more application servers and a message server. Companies use the application server to provide services for the operation of applications in SAP. The message server serves as an "intermediary" between the applications and services, for example, by controlling communication between the individual application servers and determining the load on the application servers. Furthermore, the data is prepared for the user in the application view so that the user can call up the data visually in the presentation layer. At the same time, the user data is forwarded to the database.
This definition was last updated in June 2014
The higher the degree of standardisation of operational and maintenance tasks, the more effective the technical operation and maintenance can be. At the same time, this simplifies outsourcing and, if necessary, the use of a cloud solution. CHOOSING AN APPROPRIATE SERVICE FORM Regardless of the chosen service form, as well as outsourcing and outtasking, the overall responsibility for the availability and performance of the IT-supported applications remains with the company. This still means internal coordination of maintenance windows or release booths, which remains in place. Similarly, the services provided by the external partner must be regularly monitored and their quality checked. Therefore, the chosen IT strategy must be chosen from this point of view with the lowest risk. If the technical operation is not sufficiently assessed in the decision, there is a significant business risk.
Mentioning the SUM tool leads us to another part of SAP Basis: system updates and upgrades. Since SAP software receives updates from SAP at regular intervals - in the case of R/3 in the form of SPS (Support Package Stacks) and in the case of S/4HANA in the form of FPS (Feature Pack Stacks) - a large part of an SAP Basis administrator's job is to import these packages into the SAP system.
"Shortcut for SAP Systems" is a PC application that simplifies or even facilitates many activities in the SAP basis.
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SAP Basis refers to the administration of SAP system that includes activities like installation and configuration, load balancing, and performance of SAP applications running on Java stack and SAP ABAP. This includes the maintenance of different services related to database, operating system, application and web servers in SAP system landscape and stopping and starting the system. Here you can find some useful information about SAP Basis: www.sap-corner.de.
Both halves make this piece unique.