SAP system copy SAP system update and database update - SAP Basis

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SAP system update and database update
SAP system copy and the cloud
For a long time, manual procedures dominated, supported by SAP (guidelines), in particular by predefined procedures and a large number of checklists. In many places, this was supplemented by scripts created in-house, which, however, only automated partial tasks/processes of an SAP system copy.

Table splitting reduces the risk of losing a lot of time during export in case of an error. When restarting, the complete table does not have to be exported again, but only a subset. Simultaneous processing of a table by several R3load processes can reduce the total runtime for this table.
The system copy
When executing a system copy, all tables, processes, databases, etc. are taken into account when copying. Logical system names must also be converted (using the BDLS trasaction code). The process of a system copy usually does not change. If no structural changes have been made to the SAP systems involved, the process is even 100% identical. Due to the very high repeatability of the nevertheless complex process, it is advisable to automate it to a large extent.

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If the data stocks become obsolete, they can be updated by another system copy. From a technical point of view, such a refresh corresponds to the initial setup, including the associated costs as well as the load on the productive systems and manual rework. In addition, a refresh also interrupts all processes on the target system. If it is a development system, all newer development objects must be saved and transported back in after the copy. The version history is lost in the process.

With "Shortcut for SAP Systems", a mature and yet very cost-effective product is available that offers useful functions for system copies. For example, SAP system users can be backed up and restored. Likewise, system-specific tables can be backed up before the system copy and restored after the system copy. And all this can also be automated.

SAP production system copies are created for a variety of reasons, including: - Generating a new non-production system for short- or long-term use - Updating an existing non-production system An SAP system copy is called homogeneous if the source and target operating and database systems are identical.

Checklist for preliminary work: Comparison of database sizes (target system must be the same or larger), comparison of database versions, kernel, host agent (ideally the same software version), dump of kernel files (export via SAPINST), saves download via SWDC, compile RFC connection passwords, inform third-party system administrators, provide memory, hard disk on the system for database and software import.

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