SAP Basis Introduction and R3 Architecture Overview (in English)
SAP Basis Support & Monitoring
The following list explains the steps in the order they are performed by SPAM: PROLOGUE This step will check if you are eligible to play Support Packages. CHECK_REQUIREMENTS In this step, different requirements for inserting are checked, e.g. the login of the transport control programme tp to your system. DISASSEMBLE In this step, the data files are unpacked from the corresponding EPS packages and placed in the transport directory. ADD_TO_BUFFER In this step, the queue is placed in the transport buffer of your system. TEST_IMPORT This step checks whether there are any objects that are overridden during the commit and are in unreleased tasks. IMPORT_OBJECT_LIST In this step, the object lists for the support packages that are in the queue are fed into the system. OBJECTS_LOCKED_? This step checks to see if there are any objects that are overwritten during the commit and that are in unreleased jobs. SCHEDULE_RDDIMPDP In this step the transport daemon (programme RDDIMPDP) is planned. ADDON_CONFLICTS_? This step checks to see if there are conflicts between objects in the queue and add-ons installed. SPDD_SPAU_CHECK This step will check if a modification match (transactions SPDD/SPAU) is necessary. DDIC_IMPORT In this step, all ABAP Dictionary objects of the queue are imported. AUTO_MOD_SPDD This step checks whether modifications to ABAP Dictionary objects can be adjusted automatically. RUN_SPDD_? This step prompts you to customise your modifications to ABAP Dictionary objects by calling the transaction SPDD. IMPORT_PROPER In this step, all repository objects and table entries are fed. Then actions such as distribution, implementation, activation and generation take place. AUTO_MOD_SPAU This step checks whether modifications can be adjusted automatically. RUN_SPAU_?
If this parameter is exceeded by a process, the query is cancelled before it could be executed. Both parameters are limited by the parameter abap/heap_area_total. Of course, there are several other storage parameters that would exceed the scope of this article. You can read their function in the SAP documentation.
SPAM: Run Modification Synchronisation
The application servers provide the services for running SAP applications. In practice, companies usually decide to use a separate application server for each application.
The database layer is used to store all company data and consists of the database management system (DBMS) and the data itself. In each NetWeaver system there is a database server on which the SAP database is located. It provides all other applications with the necessary data. The data is not only data tables, but also applications, system control tables and user data. All basic components ensure that the user has fast and reliable access to this data.
Tools such as "Shortcut for SAP Systems" are extremely useful in basic administration.
In a change of department or a new activity, permissions are automatically adjusted.
By implementing the recommendations, the SAP basis is repositioning itself in parts within the IT organisation.