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The additional main memory required depends mainly on the total size of all the user contexts. The R/3 installation guidelines presently recommend 256 MB main memory or approximately 200 MB plus 6 MB per user.

The following generally applies: Have as much main memory as possible.

In the standard SD Benchmark of the R/3 System, an additional main memory requirement of approximately 25% was visible. However, you cannot readily apply this amount to other R/3 applications. In each case, you can increase the system throughput using a larger main memory extension.

Main System Profile Parameters for Updates

rdisp/vbname: Specifies the name of the update server that is to process the updates if load balancing is deactivated ( rdisp/vb_dispatching = 0 ).

In the standard system, this parameter specifies the name of an update server (set when the update server is created). If rdisp/vb_dispatching is set to 0, the updates are only processed by the server in rdisp/vbname.

rdisp/vb_delete_after_execution:Determines whether update records are deleted automatically after they have been processed successfully.

In the standard system, this is set to 1 (automatic deletion activated).

If set to 2, automatic deletion is deactivated. This value can be used to set the update and database performance. In this case, the report rsm13002 with the parameter DELETE = X should run in the background at least once a day to prevent the update tables from becoming excessively large. See also the section entitled Structure link Background Processing in the CCMS documentation.

rdisp/max_vb_server: Maximum number of update servers permitted in the SAP System. Default = 50 servers.

rdisp/vb_included_server:List of the SAP update servers, which are to be used to process updates in accordance with the load balancing principle. No updates are assigned to update servers that do not appear in the list.

This parameter is empty in the standard system. This means that all active update servers are taken into consideration for the load balancing mechanism. This is generally speaking the optimum value.

rdisp/vbdelete:Specifies the number of days after which the update records are deleted. The parameter is set to 50 days in the standard system.

Once this interval has expired, an update record is deleted irrespective of its status (processed, not processed, error etc.).

If set to 0, automatic deletion is deactivated. This value should only be set temporarily, and only if an incorrect update record is to be kept for further analysis.

Keyword: SAP HR
Title : Main HR Authorization Object for Security

Keyword: SAP HR
Title : Main HR Authorization Object for Security