SAP Profiles - Overview

SAP profiles are operating system files that contain instance setup information.

The profiles are an essential part of technical and basis settings of the system.

These Profiles can be customized to the requirements of each instance.

Profiles are used when starting and stopping the system since they are in charge of allocating or deallocating the necessary resources as specified in the profile parameters.

Parameters allow you to configure: The runtime environment of the instance (resources such as

main memory size, shared memory)

Which services the instance has available (work processes)

Where other services can be found (database host,message server etc)

Fine tune the performance.

Path /usr/sap/<SID>/SYS/profile

Profile Maintenance

SAP Profiles

SAP provides you with three profiles:

1. STARTUP Profile

2. DEFAULT.PFL

3. INSTANCE Profile

Parameters set in these Profiles effect the performance of the entire system.

START PROFILE When you start an SAP instance on a host, the start profile

defines which SAP services are started (message server, dialog, gateway or enqueue process).

There might be as many start profiles as instances.

The processes that can be started include:

• Application server

• Message server

• Dispatcher

• Gateway(if any)

DEFAULT PROFILE Configuration file for instances taking part in SAP system.

If you want to assign the same parameter value for all application servers (such as the name of the database host, or the host on which the message server is running), enter it in the default profile. In general, you can list any parameter you like here.

There is only one default profile in a SAP system.

Useful PROFILE Parameters SAP delivers its software with some default settings for all its

profile parameters.

These parameters can be edited.

New parameters too can be added according to the requirements.

Important Parameters are:

• DEFAULT.PFL

INSTANCE PROFILE Instance profiles provide an application server with additional

configuration parameters to complement the settings values from the default profile.

They also define the available instance resources (main memory, shared memory, roll memory and so on)

There might be as many instance profiles as no of instances.

Useful PROFILE Parameters

• INSTANCE.PFL

Useful PROFILE Parameters• INSTANCE.PFL

Useful PROFILE Parameters

• INSTANCE.PFL

Useful PROFILE Parameters

• INSTANCE.PFL