DB-specific methods: - for DB-homogeneous system copies - no Unicode conversion possible!
Job logic instead of customizing
The steps to be taken before shutting down the target SAP system can be summarized as follows: Well before performing the upgrade, inform the target system users - especially project managers, developers, and testers - about the planned maintenance work via e-mail, SAP system messages, and/or a message at the system logon. Using the SAP transport system requires careful preparation so that software development projects can be completed as far as possible. Shortly before the start of the update, inform users again that maintenance work on the system is imminent and that they should log off from the target system. After logging users off and locking them out, download system-specific content from the target system database for customization (including security settings, Remote Function Call (RFC) targets, and operating modes).
An SAP system copy usually includes both the copy of the database and the copy of the file systems that contain the SAP system. There are several ways to create a system copy of an SAP system, depending on the type of database and operating system used.
Update more efficiently
There are various ways to tame this time robber and reduce run times. For example, through parallelization or the automatic generation of secondary indices.
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While homogeneous SAP system copy expects identical combinations of operating/database systems on the source and target systems, there is also a requirement for different combinations of operating/database systems on the source and target systems in the project environment (eg, during migrations). This is referred to as a "heterogeneous SAP system copy". Technically, it is quite possible to build up a degree of automation here as well, but officially certified consultants ("migration consultants") are required to perform the heterogeneous system copy.
"Shortcut for SAP Systems" can considerably simplify and shorten a number of activities within the scope of a system copy or a system refresh. By using this application in conjunction with the information on system-specific tables from the PCA tool, the system-specific data can be backed up and restored after the system copy / system refresh. As a result, many of the activities mentioned here regarding data backup / restore can be performed much more easily; the creation of screenshots and the subsequent manual restoration of the state documented in this way can then be completely eliminated.
Backup and restore are performed at the SAN device level and supported by HP System Copy software.
Landscape copies refer to the update of not only one but a whole group of systems.