Installing the Memory Management System

The memory management system is automatically activated and configured using your entries during the installation or the upgrade.

Prerequisites

Before you install the R/3 System or upgrade to a 4.x version, ensure that the host system(s) on which the R/3 application server is/are set up, fulfill all the requirements particularly regarding main memory and swap space.

For more information, see:

Operating System and Hardware Prerequisites.

Also refer to the installation checklist and the installation documentation OS Dependencies.

Procedure

Configuring the Memory Management System

The memory management system is preconfigured in the course of the installation/upgrade procedure. The installation/upgrade program requires information about the host system and sets the memory management parameters for each procedure either to the default values or to the values corresponding to the input. This preconfiguration is valid for the host system on which you perform the installation, and for the server you set up during the installation.

Checking and Adjusting the Configuration

Check the preconfigured memory management system and your host system using the following sample configuration and guidelines.

Requirements for the Host:

Checking the Hardware and Operating System of the Host System

Sample Configurations:

Application Server with Up to 15 Users

Application Server with Up to 50 Users

Application Server with Over 50 Users

Configuration Help for Various Platforms:

Configuration for UNIX / Windows NT

AS/400 Configuration

Memory Management under Windows NT

Configuration for AIX

Checking the Operation of the Memory Management System and Setting Necessary Parameters if Necessary

For more information, see:

Monitoring the Memory Management System

Important OSS Notes

Note Number	Description	Operating System
33576	Memory management in releases as of 3.0C, UNIX and NT	UNIX, NT
44695	Memory management in releases as of 3.0C, AS/400	AS/400
68544	Memory Management under Windows NT	NT
32915	OSF1 kernel parameters for 3.0x memory management	DEC
36410	AIX Early versus late swap space allocation	AIX
98153	ABAP program buffer greater than 256 MB for AIX	AIX