Scenario with system copies for updating
Job logic instead of customizing
Normally, therefore, the target system is created using a copy of the production system. The advantages here are: After the initial setup, data is already available, and users receive a completely identical test environment. However, the disadvantages of this procedure are the high memory requirements, the lack of anonymization of the data and the long runtime of the copy process.
The initial screen will then, for example, already show an overview of the - in some cases automatically - integrated systems and their status, as well as system information such as release, patch level and the like. The use of a comprehensive dashboard will then also be included.
Technical system copy for the upgrade
Even if the target system is not used for production in an update scenario based on a system copy, it is of central importance for developers and thus also the software lifecycle of the production system. That's why you should avoid upgrade downtime in both the production source system and the non-production target system. Production system downtime depends primarily on the method you use to create the image of the production data to be used in the target system. This image must be a transferable database image - for example, a database export, a backup copy, or an array-based reconciliation. To eliminate downtime in the production system and minimize the impact on application performance-regardless of the size of the production data reconciliation-you can use, for example, HP StorageWorks System Copy for SAP (HP System Copy), which has a disk array-based replication capability. Downtime in the target system depends on the following factors, among others: The time required to restore production data reconciliation in the target system The amount of pre- and post-processing in the target system With HP System Copy, images of production data can be created in minutes, with each step between shutdown and reboot of the target system occurring automatically. However, after the reboot, the target system is not immediately ready for use, as additional steps must first be performed (see description below).
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In order to be able to work with the most up-to-date data possible on the development and quality assurance systems, it is necessary to bring an up-to-date production status onto these systems. This is often done via a complete system copy (production system -> development system, production system -> quality assurance system) and is very error-prone and user-intensive in ad-hoc configuration (especially if each developer/customizing user is responsible for saving the transports and importing them again after the copy). Every SAP system copy then carries the risk of losing the development status achieved and can lead to inconsistencies in programs and customizing, and any damage repair is usually very time-consuming.
With "Shortcut for SAP Systems" a tool is available that simplifies the SAP system copy and offers additional possibilities.
Especially in complex environments, SAP system copies regularly represent a critical challenge in terms of time and expertise and thus become a real cost factor in the long run.
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.
One takes thus in the context of the copy a platform change.