Memory Management under UNIX 
The memory management system is automatically activated and configured using your entries during the installation or the upgrade.
Prerequisites
Before you install or upgrade the SAP system, ensure that the host system(s) on which the SAP application server is set up fulfill all the requirements, particularly regarding main memory and swap space.
For more information see the Implementation Guide (http://service.sap.com/instguides) under Hardware and Software Requirements, and in section Swap Space Requirements.
Integration
See the section Implementing Memory Management (UNIX).
Activities
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.
Also see the section Configuration for UNIX.
Checking the Operation of the Memory Management System and Setting Parameters
For more information, see the following section of documentation:
More Information
The table below summarizes important SAP notes on memory management.
Note Number |
Description |
Operating System |
FAQ: Memory problems on NT / Windows 2000 |
Microsoft Windows |
|
Recommended Parameters for 64 Bit SAP Kernel |
All |
|
SAP Memory Management for Linux (32 Bit) |
Linux |
|
SAP Memory Management for 64 Bit Linux Systems |
Linux |
|
HP-UX Operating System Kernel Parameters |
HP-UX |
|
Large extended memory on AIX (64-Bit) as of Kernel 6.20 |
AIX |
|
Shared memory segment shortage in AIX |
AIX |
|
SAP Memory Management, Current Parameter Ranges |
All |
|
Memory Protection and Performance |
All |
|
Display of SAP Memory Usage in SM04 and ST02 |
alle |
|
Apparent differences in memory consumption display |
alle |
|
Windows: transactions with high memory requirement |
Microsoft Windows |
|
Configuration of R/3 on hosts with a large amount of RAM |
UNIX |