SAP System Architecture

1
SAP System Architecture
2
SAP System Architecture

SAP GUI
DIAG
SAP Application Server(SAP Instance)
Web
M
Dispatcher
Queue
SAP Buffer (Shared Mem)
D
D
B
V
S
E
G
Oracle Informix DB2 MS SQL Server MAX DB
Database Server
3
SAP Installation Concept
4
SAP Installation Concept

• Install Oracle RDBMS
• Install Central Instance (SAP Application Server)
• Install Database Instance
• Install SAP GUI

5
1.Install Oracle RDBMS
6
Install Oracle RDBMS
7
2.Install Central Instance
8
Install Central Instance
9
3.Install Database Instance
10
Install Database Instance
11
Install Database Instance
12
4.Install SAP GUI
13
Install SAP GUI
14
SAP Architecture Overview
15
SAP System Configuration
16
SAP System Central Instance
SAP Application Server (Central Instance)
M
Dispatcher
SAP Buffer

Roll Area
Queue

Program Buffer
Table Buffer

D
D
B
V
S
E
G
17
SAP System Dialog Instance
SAP Application Server (Dialog Instance)
Dispatcher
SAP Buffer

Roll Area
Queue

Program Buffer
Table Buffer

D
D
D
D
D
D
G
18
SAP Instance
Dialog Instance A
Dialog Instance B
Dispatcher
Dispatcher
D
D
D

D

D
B
Central Instance
M
Dispatcher
D
D
B

V
E
S

19
Work Process Types

• D Dialog
• B Background
• V Update
• E Enqueue
• S Spool

20
SAP System

• SID System Identifier
• System Number

Three-tier configuration
Standard User
System Client
SAP/06071992 DDIC/19920706
000
Application processes
001
066
earlywatch/support SAP/06071992
Database processes
21
SAP System Client
000
001
Client Copy
066
800
22
SAP System Logon
23
Data in SAP System
User Master
1. Client-dependent Data (Client-Specific)
Customizing
Master
Application
Transaction
Customizing
2. Client-independent Data (Cross-Client)
Repository
24
SAP System Application Modules
25
System Landscape
DEV
QAS
PRD
CUST
QTST
PROD
DEVL
TRAN
UTST
SAND
Common Shared Directory
26
SAP System Dialog Processing
Report ztest. Tables customers. Select single
from customers where id 1. Write /
customers-name.
1
8
SAP Application Server
Dispatcher
2
SAP Buffer
Request Queue
Program
7
4
Roll Area
3
D
D
D
D


5
6
Database Server
27
Work Process Architecture
Local Memory
Dialog Work Process

Memory Space
TaskHandler
ABAP Processor
List buffer
DYNPRO Processor
DB Interface
Result Set
Database Server
28
SAP Web AS Technology
29
SAP Web Application Server

• The SAP Web AS is an open, scalable, and
  high-availability infrastructure for developing
  dynamic and company-wide Internet applications
• It is a server based on the well-known SAP
  Application Server technology, with the
  additional enhancement of Web functionality
• The SAP Web AS is the new technological basis of
  all mySAP Business suite solutions. It is also
  the core element of the SAP R/3 Enterprise system
  the successor to the classic SAP R/3

30
SAP Web AS Release

• SAP Web AS 6.10
• ICM
• SAP Web AS 6.20
• ICM, J2EE
• SAP Web AS 6.30
• ICM,J2EE Eclipse,Web Dynpro
• SAP Web AS 6.40
• ICM,J2EE Web Dynpro Integrated ITS
• SAP Web AS 7.00
• Oracle 10g

31
SAP GUI for HTML
http//ltSAP InstancegtltICM portgt/sap/bc/gui/sap/it
s/webgui/!