Application Server with up to 15 Users (iSeries)

The values listed in the following table for the host system and server should ensure the best possible operation of your SAP NetWeaver Application Server for up to 15 dialog users.

The lower limit values represent a type of minimum configuration for small SAP system installations.

Main and Unprotected Storage on the Host System

Resource

SAP Recommendation

Free auxiliary storage

Minimum: The greater of the following two values:

· 4 GB

· Three times the main storage

Recommendation: 4-6 GB

Main storage

Minimum: 256 MB (storage pool without database). More main storage provides performance advantages.

Recommendation: at least 512 MB

This value is recommended for hosts on which only one instance is running. If you are planning to install the database system or a second instance on a host, please contact your Hardware Competence Center or system consultant.

Profile Parameters

For information about the use of the various parameters, see Profile Parameters for Memory Management.

Parameter	Recommended Value
abap/heaplimit: Work Process Restart	20000000 (20 mil. bytes)
abap/heap_area_dia: Heap Memory Limit for Dialog Work Processes	2000000000 (2 GB)
abap/heap_area_nondia: Heap Memory Limit for Non-Dialog Work Processes	2000000000 (2 GB)
abap/heap_area_total: Heap Memory Limit	2000000000 (2 GB)
em/initial_size_MB: Extended Memory Pool Size	128 (128 MB, 6 MB per user) Minimum 64 MB
em/stat_log_size_MB: Statistics - User Context Size	20
em/stat_log_timeout: Statistics - User Context Size	600
rdisp/ROLL_MAXFS: Maximum Roll File Size	16384
rdisp/ROLL_SHM: Roll Buffer Size	16384
rdisp/PG_MAXFS: Maximum Size of the SAP Paging File	16384 (The same value as rdisp/PG_SHM)
rdisp/PG_SHM: Paging Buffer Size	16384
ztta/roll_area: Roll Area	Set automatically
ztta/roll_first: Initial Allocation Size from the Roll Area	Set automatically
ztta/roll_extension: Extended Memory Limit	40000000 (40 mil. bytes).

The settings listed here are recommended base values that you may, however, have to change if you monitor or optimize your SAP system. For more information, see Monitoring the Memory Management System.

Check the changes to the system profiles using the program rspfpar. For more information, see Operating System and Hardware Prerequisites.