SAP Basis OS/DB Migration - SAP Basis

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OS/DB Migration
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Regular maintenance tasks or the standard procedures must be described and defined to build checklists based on them and to control compliance with this standard. The SAPSolution-Manager can also support this as a tool of SAP e.g. through the Guided Procedures. In this context, it is also necessary to document the functionality of an underlying application and thereby determine what testing and monitoring activities are necessary. This is a reconciliation process between the SAP basis, other IT departments and, if necessary, the business areas concerned. The defined standard and the system's IST situation must be fully documented and regularly checked for compliance. This can be done through automated monitoring, validation using tools such as SAP-LVM (Landscape Virtualisation Management) or SAP Solution Manager, as well as manual checklists. Only the regular review of the standards guarantees their compliance. It can also support the regular use of SAP services such as Go-live Checks or Early Watch. Examples of how to standardise procedures are listed here: ・ Naming of system instances and logical hosts, or at least one central registry in a directory service, or LVM or SAP customer portal ・ Centrally starting and stopping systems, such as via the LVM ・ Categorising SAP instances by T-shirt size to define profile standards and cost them.

If your system is already above SAP NetWeaver Release 7.0, then you must either import SAP Note 1731549 or a corresponding Support Package. Afterwards, when creating new users, it is no longer possible to assign user names that are only composed of variants of spaces or other invisible special characters. Important: Changes to already existing users with these names or their deletion option are not affected by this! The SAP Note also adds the customizing switch BNAME_RESTRICT, whereupon you can control yourself whether alternative spaces are allowed to appear in certain places in the user name. For this, the following values must be set in the customizing table PRGN_CUST: NO = The alternative spaces are still allowed in the user name. ALL = The character set is reduced to a defined range, excluding certain special characters because they have specific meanings in certain operating systems or databases. This predefined character set is: ABCDEFGHIJKLNMOPQRSTUVWXYZ_0123456789,;-§&()={[]}+#. FME = The letters F, M and E stand for Front, Middle and End. With an 'X' in this three-digit switch value you can now explicitly specify at which position in the user name no wide spaces and control characters may occur. All combinations are possible, e.g.: XME = None of these special characters may occur at the BEGINNING of the user name. XMX = In the user name none of these special characters may occur at the BEGINNING and at the END. FME = One of these special characters may occur at any position in the user name (this corresponds to the default setting, i.e. as if no entry was maintained in PRGN_CUST for the switch). SAP recommends the use of the value ALL.
TUNING
There is an RFC error. CANNOT_ADD_PATCH_TO_BUFFER: A support package could not be included in the transport buffer. For more information, see the log file in the /usr/sap/trans/log (UNIX) directory. CANNOT_MODIFY_BUFFER: An attempt was made to modify the transport buffer without success. TEST_IMPORT This step checks whether there are still objects in unshared tasks that are overwritten during the commit. The log of the test import shows the cause of the error. For more information, see Note 42379. IMPORT_OBJECT_LIST In this step, the object lists for the support packages in the queue are fed into the system.

The tasks of a company's own SAP Basis department are undergoing enormous change at many companies, as SAP is also relying more and more on cloud services. Strategically, completely self-hosted SAP systems are becoming rarer and the proportion of customers using an SAP system from the cloud is increasing. The new roles of SAP Basis employees tend to be "enablers" and coordinators between the cloud provider and internal IT and the business departments. Until that time comes, companies can also rely on external service providers to offer expert know-how as well as operational support for the transition period.

The "Shortcut for SAP Systems" tool is ideal for doing many tasks in the SAP basis more easily and quickly.

Read more This blog post is intended to show what is already possible in the field of Security Automation.

Furthermore, the DISPLAY system variable must be set in order to start the TREX admin tool.
SAP BASIS
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