Migration of SAP DB systems (between different databases)
The Basis system comprises a total of three layers
It is possible to specify a trace level for each rule in the ACL file to monitor each communication channel individually. It can be used with SNC without any further configuration. The use of the file is controlled by the gw/acl_file parameter by simply setting it to the appropriate file name. Use of external programmes If an external programme wants to communicate with your SAP system, it must first register at the gateway. The programmes which this is approved are controlled by the reginfo ACL file. This defines rules that allow or prohibit certain programmes. The syntax of the file allows you to define not only the name of the programme, but also the host on which the programme runs and hosts that can use and exit the programme. The gw/reg_info parameter must be set to use this file. In addition, there is the ACL file secinfo, which allows to configure which users can start an external programme. This defines rules that allow certain usernames from the SAP system to use certain external programmes. In addition, you can also define the hosts on which these programmes will run. For example, it is possible to allow a user to run the programme "BSP" on the host "XYZ", but not on the host "ABC". This file is controlled by the gw/sec_info parameter. Using the gateway as a proxy Since the gateway of your SAP system can also serve as a proxy server, the prxyinfo ACLDatei should also be activated via the gw/prxy_info parameter. Suppose you have 3 SAP systems in your network: SRC, TRG and PRX. If SRC cannot communicate directly with TRG, but both with PRX it would be possible to use the gateway of the PRX system as a proxy server, i.e. to communicate via it. So, in order to prevent this from happening to everyone, this property should be urgently restricted. As with the other ACL files, rules are defined which hosts can communicate with which hosts via the gateway. The syntax of the different ACL files may vary depending on the release level. It is therefore advisable to read them in the appropriate SAP documentation before activating the ACL files. You can also find more support for using ACL files in the SAP Community Wiki.
If the additional memory in the Advanced Storage Area is still not sufficient for the user context, the optional second role area can be used. The size of the second roll range is determined by the difference between the parameters ztta/roll_first and ztta/roll_area. Rolling range has been eliminated in kernel release 7.4, so these parameters are obsolete from then on. Instead, the user context is now stored directly in the Advanced Memory.
From installation to ongoing support
A positive aspect of standardisation and automation is the increase in the quality of tasks, since manual errors can be almost excluded. It also increases the speed at which certain tasks can be performed. This is accompanied by a reduction in the proportion of administrative activity and thus in the proportion of the operation of the system landscape.
In every company with an SAP system, there is someone who is responsible for the SAP Basis. This person ensures the trouble-free operation of the SAP system. He or she accompanies maintenance work and intervenes in special situations, such as poor performance. Even for companies that hand over the operation of Basis to an external service provider, there are often still tasks from the user and authorization management environment at this point.
Some missing SAP basic functions in the standard are supplied by the PC application "Shortcut for SAP Systems".
The English texts can then be inserted as translations in the same window.
In order for Fiori applications to be displayed according to the calling users, appropriate Fiori permissions must be maintained in the PFCG.