Profile Maintenance and Operation Mode

7/28/2019 Profile Maintenance and Operation Mode

1/16


2/16

What is profile???

SAP profiles are operating system files that contain instance

configuration information. SAP systems can consist of one or more

instances. Individual configuration parameters can be customized to

the requirements of each instance.

The profile file is structured as follows:Parametername1 = Value1

Parametername2 = Value2

Parameter names that logically belong together have a common

root. For example, the parameters that control the dispatcher

within an application server have the root: rdisp/. The SAP profiles are stored in a special file directory.

UNIX systems:/usr/sap//SYS/profile

Microsoft Windows NT

systems:\\\sapmnt\\sys\profile\


3/16

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. for example). The startsap program is responsiblefor starting these service processes, and it uses a start profile to

begin the startup process.

Apart from the general profile parameters, such as the name of the

SAP System ( SAPSYSTEMNAME ), instance number ( SAPSYSTEM )and name of the SAP instance (INSTANCE_NAME ), the onlyparameter names that are permitted in a start profile are:

Execute_XX (XX: 00-99)

Start_program_XXX (XX: 00-99)

Stop_Program_XX (XX: 00-99)


4/16

Default Profile:

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. Ingeneral, you can list any parameter you like here.

SAP recommends that you use the following values:

Parameter Definition Parameter Name in Profile

Name of the database host SAPDBHOST

Name of the update server rdisp/vbname

Name of the enqueue server rdisp/enqname

Name of the server for handling background processing

eventsrdisp/btcname

Name of the computer on which the message server is

runningrdisp/msname

Name of the TCP service under which the message servercan be reached

rdisp/msserv

Name of the computer on which the SNA Gateway is

runningrdisp/sna_gateway

Name of the TCP Service under which the SNA Gateway

can be reachedrdisp/sna_gw_service


5/16

Instance Profile:

Instance profiles provide an application server with additional

configuration parameters that complement the settings in

the default profile. Typically, these are parameter settings that areadapted to the instance according to the required resources and

applications. They also define the available instance resources (main

memory, shared memory, roll memory, and so on), and how to

allocate memory to the SAP application buffers. You can choose any name for an instance profile. The SAP naming

convention has the following

structure:_ or __

Eg: ECP_DVEBMGS12.

ECP_DVEBMGS12_host01


6/16

Transaction code: RZ10

Importing Profiles:

When you first install an SAP System, upgrade to a new SAP release oradd a new application server, the system automatically generates orupdates SAP instance profile at operating system level. Unfortunately,the installation program cannot save these profiles directly to thedatabase. You must therefore import the SAP instance profiles before

you can then edited them.

Editing Profile:

There are two modes for editing profiles:

In basic mode, you can edit a set of parameters that are changedmost frequently. You do not need to know the technical parameter

names. Interdependent parameters are grouped together. If youchange a parameter, any parameters that depend on it are adjustedautomatically. The basic maintenance option displays general data onthe profile and the parameters for the buffer sizes, number of workprocesses and the swap requirement.

In extended mode, you can use a editing tool. You need to know thetechnical names of parameters and their dependencies. It displays all

individual parameter values for the profile.


7/16

Creating New profiles:

To create a new profile manually: Call the RZ10. Specify the name of the profile that you want to

create and choose Create. The system creates the version numberautomatically. Enter a short description of the profile, the filename

into which the profile should be activated, a reference server and

the profile type. Then choose Copy. You can maintain parameters and

their values by flagging either Basic or Extended maintenance and

choosing Maintain.

Changing Profile Parameters: Call Transaction RZ10. Specify the name of the profile whose

parameters you want to change in the Profile field. If you want to

change the name of the file in which the profile should be activated,

checkAdministration data and choose Change. Once you have made

the changes, choose Copy. If SAP System profiles are importedautomatically, the system creates administration data automatically.

Maintain the most important profile parameters by checking Basic

maintenance and choosing Change. Once you have made the

changes, choose Copy. You can create, change or delete all

parameters in a profile by choosing Extended maintenance. Once you

have made the changes, choose Copy.


8/16

Important Profile Parameters:

To check all the parameters name:tcode : sa38----> program name: rsparam---->Execute----> Execute.

Parameter Description Defaultvalue

sapsystemname System ID of 3 characters.

sapdbhost Name of Database server.

rdisp/mshost Message Server name.

Rdisp/enqname Instance that provide Enqueue service.

Rdisp/wp_no_dia Specifies no. of Dialog process. 2

Rdisp/wp_no_spo Specifies no. of Spool process. 0Rspo/host_spool/

print

OS command for printing.

Rdisp/wp_no_vb Specifies no. of Update process. 0

Rdisp/wp_no_btc Specifies no. of Background process. 0

Rdisp/wp_no_enq Specifies no. of Enqueue process. 0

Abap/buffersize Size of ABAP program buffer. 300000


9/16

Rdisp/roll_maxfs Size of Roll area. Recommended/Default

Rdisp/pg_maxfs Size of Paging area. 16000

Ztta/roll_first Size of first allocated memory area

from roll area.

1

Ztta/roll_area Size of roll area (in bytes) 2,000,000

bytes for NT

Abap/heap_area_tot

al

Maximum heap process of all Work

Process.

8236842496

Login/fails_to_sessio

n_end

No. of permitted failed logon attempts

before SAPGUI closed.

3

Login/fails_to_user_l

ock

No. of permitted failed logon attempts

after which user will lock out.

12

Login/min_password

/lng

Minimum length of password required. 3

Login/system_client Default logon client. 200

Rslg/max_diskspace/local

Max size of file for local system log. 1000000


10/16

You can define operation modes to suit specific system requirements, for

example, to provide additional dialog or background processing resources

during a particular period of time without having to restart the system. Operation modes define:

The number of work processes used for each service in the instance

The times that the services are available

Operation modes support:

24 hour uninterrupted system operation

Automatic switching of work process types

Switching Operation Modes

When operation modes are switched, the work processes are redistributedautomatically without stopping and restarting the instances.

Only the work process types are changed. For example, a work process

used as a dialog process can be switched for use as a background process.

Processing is not interrupted. Normal system operation continues

uninterrupted during the operation mode switch.


11/16

Switching Operation Modes Automatically (RZ04)

Two ways:

Normal Operation: The time interval defined for Op mode arerepeated in 24 hours.

Exception operation: The time intervals defined for the operationmodes are activated once for a specified time period

Switching Operation Modes Manually (RZ03)

Call transaction RZ03. The system displays information about

operation modes and server status.

Choose Operation Mode. The system displays a list of defined

operation modes. Choose the operation mode that you want to switch to. You return to

the list of operation modes and servers.


12/16

Step 1: Call transaction rz04

Step 2: Click on create

Step 3: Fill Operation Mode as day and give short description and Save.


13/16

Step 4: Repeat Step 2 and Step 3 for Night Operation.

Step 5: Click on instance/Operation Mode

Step 6: Go to Settings based on current status Existing or New

instance.

Step7:Save

Step 8:Double click on defined on Operation Mode and adjust

Background Job and Save.


14/16

Step9: Go to Operation Mode Timetable and select Normal or

Exception mode as per requirement and click on change.


15/16

Step10: Select time interval and assign the operation mode.

Step 11:Select day and night operation Modes for particular time

interval and Save.


16/16

Documents

Profile Maintenance and Operation Mode