Migration of an SAP system to other server landscapes
SAP Basis Administration
The application layer is the central component of the SAP R/3 system. This layer is therefore also referred to by SAP as the actual basis system. Within the layer there are application servers and a message server.
This SAP training covers the introduction/basics of SAP administration. You will learn the basic functions of the SAP system. You will learn the most important administrative tasks, such as user administration and roles, the SAP data transport system, security in the SAP environment, administrative background tasks and system monitoring.
Analysis and reflection of the existing system configuration
Another major topic is the migration of SAP systems, both locally from one data center to another and from one operating system to another or from one database type to another. As a rule, the SWPM tool is used here again.
Transporting transport orders from one system line to another or importing third-party transport orders into the SAP system is also an occasional task for an SAP basis administrator. As in my last blog post on system modifiability, I would like to offer you a way to quickly present this topic. So you will find a step-by-step guide which you can follow if you have already understood the content of the topic, but only the steps need to be taken. What are the requirements? Transport orders include two files, titled "data" and "cofiles". These files consist of a six-character alphanumeric combination and a file extension, which often represents the system from which the files were exported. The first character is always a K (the cofiles file) or an R (the data file). For our example we call the files K12345_DEV and R12345_DEV. These files are of course needed for an import into your own SAP system. Furthermore, you need access to the file system or the SAP directories, as they have to insert the above files there manually. In addition, the transaction STMS is required in the SAP system because it attaches the transport orders to the import queue. Now, if you have all of this available, we can start with the import: What is the procedure? Operating System Level Preparation. The first step is to copy the files to the transport directory of the SAP system. This is usually below /usr/sap/trans, but can be changed individually depending on the system. If you want to make sure that you are working in the correct directory, you can look in the transaction AL11 to see which directory is specified under "DIR_TRANS". This is the right directory to work on. Here the existing files are copied into it, namely the cofiles file (K12345_DEV) in the cofiles folder (/usr/sap/trans/cofiles) and the data file (R12345_DEV) in the data folder (/usr/sap/trans/data). Note: In this case, especially for companies with multiple systems on multiple servers, the access permissions and the file owner need to be changed so that the import in the target system does not cause problems.
With "Shortcut for SAP Systems" a tool is available that greatly facilitates some tasks in the SAP basis.
Understanding the structure and functioning of the system is especially important for IT administration. It is not for nothing that "SAP Basis Administrator" is a separate professional field. On the page www.sap-corner.de you will find useful information on this topic.
Which miner is right now? The solution is to divide the consensus into time blocks, in which a miner is randomly selected, and then determine which transaction it has selected as the consensus during this block.
The higher the degree of standardisation of operational and maintenance tasks, the more effective the technical operation and maintenance can be.