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SAP Basis Training Demo- BASIS
Online Training In Usa,Uk and India
Online | classroom| Corporate
Training | certifications...
SAP Technical Overview
Learning Objectives
• What the Basis system is
• How does SAP handle a transaction
request
• Differ...
SAP Technical Overview
The Software-Oriented View of R/3
SAP Technical Overview
The SAP R/3 System Architecture
• Implications for Application Programming
– Separate presentation ...
SAP Technical Overview
SAP Technical Overview
• Application Layer (cont.)
– Application Server
• R/3 programs run on application servers
• The AP...
What happens when I send a
request to SAP?
SAP Technical Overview
Application Server
Presentation . . . Internet
Application
Database
Communication
SAPGUISAPGUI Inte...
SAP Technical Overview
Dispatcher
• Program which manages resources of the
R/3 applications
• Receives requests from user ...
SAP Technical Overview
Dispatcher Tasks
• Balances the workload between the
processes
• Buffer management in main memory
•...
SAP Technical Overview
Work Process
• Responsible for executing R/3 application
tasks
Database
Interface
Task Handler
ABAP...
SAP Technical Overview
Different Kind of Work Processes for different
Tasks
Dialog
D
SAP DispatcherSAP DispatcherBatch
Spo...
SAP Technical Overview
Dialog Work Processes
Dialog
D
• Responsible for the interactive
tasks of the R/3 system
• Dialog w...
SAP Technical Overview
Background Work Processes
• Responsible for executing
ABAP programs submitted
for background execut...
SAP Technical Overview
Spool Work Processes
• Responsible for formatting
the data for printing and
passing it to the host ...
SAP Technical Overview
Enqueue Work Processes
• Responsible for the lock
management system
• Synchronizes database access ...
SAP Technical Overview
Update Work Processes
• Responsible for making
database changes requested
by dialog and background
...
SAP Technical Overview
V1 vs. V2 Update Processes
• Time-critical processes are
inside V1 and less critical
ones within V2...
SAP Technical Overview
Message Server
• Used by different application
servers to exchange data and
internal messages
• Rou...
SAP Technical Overview
Gateway Server
• Allows communication
between R/3, R/2, and
external applications
• Exchanges large...
SAP Technical Overview
Work Processes
• Number of work processes can only be
changed after restarting the system
• Should ...
SAP Technical Overview
Application Server
Presentation . . . Internet
Application
Database
Communication
SAPGUISAPGUI Inte...
SAP Technical Overview
TCP/I
P
Processing of a SAP Transaction (1)
Presentation . . . Internet
Application
Database
Commun...
SAP Technical Overview
Processing of a SAP Transaction
(2)Presentation . . . Internet
Application
Database
Communication
S...
SAP Technical Overview
Processing of a SAP Transaction (3)
Presentation . . . Internet
Application
Database
Communication
...
SAP Technical Overview
SAP Communication Interfaces
High
Level
Low
level
SAP Technology
Communication Interface
Communicat...
SAP Technical Overview
Business Framework
Business
Component
BAPIBAPI
ALE
BAPIBAPI
Business
Component
• Business Component...
SAP Technical Overview
Business API (BAPI)
• Defined method of a business object
• Standardized methods allow customers
to...
SAP Technical Overview
Other Interfaces
• Application Link Enabled (ALE) - Interface
that links different SAP systems and
...
Basic Functions of Basis
SAP Technical Overview
Basis Functions
• Hardware and Database Administration
• User and Security Administration
• Client ...
SAP Technical Overview
Hardware and Database
Administration
• Hardware upgrades - adding memory or
servers
• Database back...
SAP Technical Overview
User Administration
• Create users and assign profiles
• Modify, lock and unlock users
• Develop au...
SAP Technical Overview
Client Maintenance
• Create clients
• Copy and refresh clients
• Client imports and exports
• Delet...
SAP Technical Overview
Correction and Transport System
R/3
System
R/3
System
R/3
System
Development ProductionQuality
Assu...
SAP Technical Overview
Online Service System (OSS)
• OSS is a set of SAP’s online services such
as bug fixes and useful im...
SAP Technical Overview
Performance Monitoring and
Tuning
• Check database usage and storage
capabilities
• Dialog response...
SAP Technical Overview
Computer Center Management
System (CCMS)
• Manages the entire system - database,
application, opera...
SAP Technical Overview
Computer Center Management
System (CCMS) functions
• Starting and stopping instances
• Monitoring a...
Question & Answers
Should you require any further
information please do not hesitate to
contact us
• http://www.saponlinetrainings.net
• -sap...
Thank you !
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Sap basis training demo basis online training in usa,uk and india

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www.Magnifictraining.com-sap basis ONLINE TRAINING. contact us: info@magnifictraining.com
or call us: +919052666559,919052666558 sap technologies like sap basis,sap ewm,sap basis,sap basis ,sap basis,
sap hcm ,sap bi/bw, sap is banking,sap srm,
sap gts online training by industrail hands on training on sap basis online TRAINING.


SAP BASIS Online Training Course Contents :
What is SAP?
An introduction to ERP
An introduction to SAP
SAP AG: Evolution & Strategy
SAP Product Evolution
SAP Services Overview ( OSS )
An introduction to BASIS
Basics to startup with BASIS Administration
An introduction to Operating Systems
An introduction to Database Systems
Overview of computer Networks
Network types & devices
Protocol & IP Address concepts
An introduction to Kernel Software
Description of R/3
Client / Server Solution
Overview of 3 layer interface

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  • This slide depicts how an application server works. Users make requests at the presentation layer and through TCP/IP these requests get sent to the application server. The dispatcher then takes the requests and assign them to work processes which handle the requests. More detailed explanations are on the following slides.
  • The dispatcher is a program which manages the resources of the R/3 applications. They are very similar to a police dispatcher who receives requests via 911 and routes it to available officers who are in the area.
    The dispatcher receives requests from the many users on the system and passes them along to the corresponding work processes which are free. It also manages the information flow between the app server and the SAPGUI.
    Each app server has only one dispatcher because it could get kind of difficult for two dispatchers to route requests to the work processes.
  • The dispatcher is responsible for balancing the workload between the work processes so that processes don’t sit idle.
    Memory management is also one of its duties. The dispatcher must also organize the communication between the work processes and also between the SAPGUI and app server.
  • Work processes are the actual programs which execute tasks. They update the database, run batch programs, and send messages. Work processes are comprised of a task handler, an ABAP/4 processor, dialog interpreter and database interface.
    They execute dialog steps for a user and typically only do the work of displaying one screen at a time. In other words, work processes present one screen of data, and are immediately freed to handle other tasks. The next screen is then handled by the next available work process.
    The task handler coordinates the activities of the work process. The database interface allows for the work process to directly access the database. The dialog interpreter is used to coordinate presentation information and the ABAP/4 processor is useful when running programs.
  • There are seven different types of work processes which will be described in detail in the following slides. The five work processes in the middle around the dispatcher are the main work processes in use in the application servers. The two work processes on the outside are used for communication methods within the systems.
  • The dialog work process is typically the most common work process. It handles all the interactive requests of the R/3 system. Any time a user sends a request the dialog work process plays a part in the work. Dialog work processes handle just one dialog step and are immediately freed to handle other requests. So these work processes are constantly switching between users. This limits the number of dialog work processes, as you would need the same number of work processes as users otherwise.
  • Background work processes execute long running and CPU intensive programs which are required to be run. Some examples include client copies and long listing reports.
    Background jobs can also be set to run at specific times.
  • In charge of formatting data for printing and sending it to the host spool system. Only one spool work process per host.
  • In order to ensure the integrity of the database, the enqueue work process is responsible for the lock management system. There is only one enqueue work process per system as it synchronizes the data access for multiple application servers and work processes. When a work process is accessing data for possible manipulation it is locked so that other work processes cannot access the data until it is released.
  • Update work processes actually manipulate the database, so they would be better served to be on the actual database server. They make all the changes to the database within the R/3 system.
  • SAP makes distinctions between the V1 and V2 component. V1 contains the time critical processes that require immediate updating whereas V2 processes are less critical. During updates there can be a combination of V1 and V2 updates.
    When errors occur during the V1 update, all changes are rolled back and any subsequent V2 components are not executed. Errors occurring the the V2 phase requires that only changes in the V2 component be rolled back.
  • This single message server per system sends messages between the various application servers. Messages include update or batch job starts. The communication is setup through the dispatchers and is used for small internal messages.
  • Gateways connect the R/3 system to other systems such as R/2 or other external systems. They facilitate the transfer of large amounts of data through the use of TCP/IP.
  • In order to change the number of work processes, you must change the system profile and restart the system.
    A system should have at least two dialog work processes at all times to ensure correct usage. In case something is wrong, an administrator would need to be able to interactively log on to the system.
    You need to have at least one V1 and V2 work processes in order to make updates.
  • Back to our picture.
  • The following outlines the course of events for an application:
    1) The user sends a request to the app server.
    2) The dispatcher receives the request and assigns it to a work process.
    3) The work process looks in its buffer for the requested data.
    4) It finds the data and once it finishes handling the request it sends the result back to the dispatcher.
    5) The dispatcher formats the results and sends it back to the SAPGUI.
  • 6) The user makes another request of the system.
    7) The dispatcher receives the request and assigns it to a work process
    8) The work process retrieves data from the buffer or the database
    9) The work process handles the request by interacting with the database and sends it back to the dispatcher
    10) The dispatcher sends the data back to the user
  • 11) Say the user requests an update. A request is sent to the dispatcher.
    12) The dispatcher sends the request to the work process.
    13) The work process makes the change to the database
    14) The transaction ends.
  • This slide shows the various communication interfaces in the R/3 system. The ones closer to the top are the ones which implementers are most likely to work directly with. The ones at the bottom are more of internal SAP communication interfaces.
  • The Business Framework - the open, component-based architecture, which allows software components from SAP and third parties to interact and integrate with each other, is gaining more and more momentum.
    Business Components cover a broad range of business data and processes. Examples include customer order management, purchase requisitions, and invoices.
    Business API (BAPI) are methods which allow interfacing between the various business componenets.
    ALE - provides an interface between the various components
  • BAPI’s are merely methods within Business components. They allow outside applications to access those Business componenets. They are standardized methods which allow integration. It’s also object oriented in nature.
  • Here are some of the most important functions of Basis personnel.
  • Some of the responsibilities of Basis personnel include the maintenance and upkeep of the hardware and database as other typical system administrators do. Typically, sizing, upgrading, backup and recovering are some of the issues that are dealt with.
  • One of the big tasks of Basis personnel is User Administration. Users must be made and assigned the correct profiles so that they can do their job and not have any extra access to other transactions that they should not be able to view.
  • Client maintenance involves the creating of clients and running client copies and refreshes.
    Client exports and imports occurs when you wish to take a client from one system and move it to another. Exports make a file at the operating system level, which can then be imported into the target system.
    When clients are obsolete, they must be deleted in order to be more efficient with memory.
  • CTS is the notion of moving changes from one system to another. In the typical Development-Testing-Production environment, CTS is the mechanism of moving changes and modifications through the systems.
  • OSS is SAP’s online service system, which contains known problem, bug fixes, and news. It’s a great source of information to find answers to your problems, and even affords you the opportunity to send SAP questions that have stumped you. OSS also plays a role in ABAP development, as all ABAP programmers must be registered through OSS.
  • Transcript of "Sap basis training demo basis online training in usa,uk and india"

    1. 1. SAP Basis Training Demo- BASIS Online Training In Usa,Uk and India Online | classroom| Corporate Training | certifications | placements| support CONTACT US: MAGNIFIC TRAINING INDIA +91-9052666559 USA : +1-678-693-3475 info@magnifictraining.com www.magnifictraining.com
    2. 2. SAP Technical Overview Learning Objectives • What the Basis system is • How does SAP handle a transaction request • Differentiating between the various work processes • Understanding the basic functions of the Basis Module
    3. 3. SAP Technical Overview The Software-Oriented View of R/3
    4. 4. SAP Technical Overview The SAP R/3 System Architecture • Implications for Application Programming – Separate presentation and application layers implies that when you run an application program that requires user interaction, control of the program is continually passed backwards and forwards between layers. – When a screen is ready for user input, the presentation layer is active, and the application server is inactive with regard to that particular program. – As a consequence, the program logic in an application program that occurs between two screens is known as a DIALOG STEP.
    5. 5. SAP Technical Overview
    6. 6. SAP Technical Overview • Application Layer (cont.) – Application Server • R/3 programs run on application servers • The APPLICATION SERVER communicate with the presentation components, the database, and also with each other, using a MESSAGE SERVER. • Main components: –Work Processes (Dialog, Update, Enqueue, Batch, Spool) –Dispatcher –Gateway –Message Server The SAP R/3 System Architecture
    7. 7. What happens when I send a request to SAP?
    8. 8. SAP Technical Overview Application Server Presentation . . . Internet Application Database Communication SAPGUISAPGUI InternetOffice Work-Work- processprocess Work-Work- processprocess Work-Work- processprocess DispatcherDispatcher TCP/IP Remote SQL IPCIPC Local BufferLocal Buffer for R/3 Data,for R/3 Data, DW-Objects,DW-Objects, ABAP-ObjectsABAP-Objects
    9. 9. SAP Technical Overview Dispatcher • Program which manages resources of the R/3 applications • Receives requests from user and passes them to the corresponding work processes • Only one dispatcher per application server
    10. 10. SAP Technical Overview Dispatcher Tasks • Balances the workload between the processes • Buffer management in main memory • Connection with the presentation level • Organization of the communication processes
    11. 11. SAP Technical Overview Work Process • Responsible for executing R/3 application tasks Database Interface Task Handler ABAP/4 Processor Dialog Interpreter Work Process
    12. 12. SAP Technical Overview Different Kind of Work Processes for different Tasks Dialog D SAP DispatcherSAP DispatcherBatch Spool Update Enqueue S 12 9 6 3 11 1 7 5 8 4 210 B M G Message Gateway R/2 R/3 V E
    13. 13. SAP Technical Overview Dialog Work Processes Dialog D • Responsible for the interactive tasks of the R/3 system • Dialog work processes execute only one dialog step at a time and are immediately freed for the next user request • Constantly switching between users
    14. 14. SAP Technical Overview Background Work Processes • Responsible for executing ABAP programs submitted for background execution • Batch jobs schedule the sequence of program execution • Used for running long and time consuming programs Batch 12 9 6 3 11 1 7 5 8 4 210 B
    15. 15. SAP Technical Overview Spool Work Processes • Responsible for formatting the data for printing and passing it to the host spool system • Only one spool work process allowed per server Spool
    16. 16. SAP Technical Overview Enqueue Work Processes • Responsible for the lock management system • Synchronizes database access for the multiple application servers and work processes • Only one enqueue process per R/3 system to ensure data integrity Enqueue E
    17. 17. SAP Technical Overview Update Work Processes • Responsible for making database changes requested by dialog and background processes • For better performance, this process should be on the database server Update V
    18. 18. SAP Technical Overview V1 vs. V2 Update Processes • Time-critical processes are inside V1 and less critical ones within V2 • Error situations in – V1 : changes rolled back and V2 components not executed – V2 : only changes of V2 components rolled back Update V
    19. 19. SAP Technical Overview Message Server • Used by different application servers to exchange data and internal messages • Routes messages, such as update or batch job starts, between application servers • One message server per system M Message
    20. 20. SAP Technical Overview Gateway Server • Allows communication between R/3, R/2, and external applications • Exchanges large amounts of information between application servers • Gateway can reside on any of the connected systems G Gateway R/2 R/3
    21. 21. SAP Technical Overview Work Processes • Number of work processes can only be changed after restarting the system • Should have at least two dialog work processes • Need to have at least one V1 and V2 processes • Number of spool processes cannot be changed
    22. 22. SAP Technical Overview Application Server Presentation . . . Internet Application Database Communication SAPGUISAPGUI InternetOffice Work-Work- processprocess Work-Work- processprocess Work-Work- processprocess DispatcherDispatcher TCP/I P Remote SQL IPCIPC Local BufferLocal Buffer for R/3 Data,for R/3 Data, DW-Objects,DW-Objects, ABAP-ObjectsABAP-Objects
    23. 23. SAP Technical Overview TCP/I P Processing of a SAP Transaction (1) Presentation . . . Internet Application Database Communication SAPGUI Work-Work- processprocess Work-Work- processprocess Work-Work- processprocess DispatcherDispatcher Remote SQL IPCIPC Local BufferLocal Buffer for R/3 Data,for R/3 Data, DW-Objects,DW-Objects, ABAP-ObjectsABAP-Objects StartStart TransactionTransaction Assign UserAssign User request torequest to WorkprocessWorkprocess Fetch data fromFetch data from bufferbuffer/database/database Re-Re- turnturn datadata forfor nextnext stepstep 11 22 33 44 55
    24. 24. SAP Technical Overview Processing of a SAP Transaction (2)Presentation . . . Internet Application Database Communication SAPGUI Work-Work- processprocess Work-Work- processprocess Work-Work- processprocess DispatcherDispatcher TCP/IP Remote SQL IPCIPC Local BufferLocal Buffer for R/3 Data,for R/3 Data, DW-Objects,DW-Objects, ABAP-ObjectsABAP-Objects 11 22 33 55 66 88 Fetch data fromFetch data from buffer/buffer/databasedatabase 99 77 1010 Assign UserAssign User request torequest to WorkprocessWorkprocess Re-Re- turnturn datadata forfor nextnext stepstep
    25. 25. SAP Technical Overview Processing of a SAP Transaction (3) Presentation . . . Internet Application Database Communication SAPGUI Work-Work- processprocess Work-Work- processprocess Work-Work- processprocess DispatcherDispatcher TCP/IP Remote SQL IPCIPC Local BufferLocal Buffer for R/3 Data,for R/3 Data, DW-Objects,DW-Objects, ABAP-ObjectsABAP-Objects 11 22 33 44 55 66 88 99 77 1010 1111 1212 1313 1414 Update dataUpdate data on databaseon database End transactionEnd transaction RequestRequest for updatefor update
    26. 26. SAP Technical Overview SAP Communication Interfaces High Level Low level SAP Technology Communication Interface Communication System Mail MAPI SMTP X.400 Mail MAPI SMTP X.400 EDIEDI Business APIBusiness API RFCRFC CPI-CCPI-C Q-APIQ-API IDOCIDOC ALEALE OLEOLE
    27. 27. SAP Technical Overview Business Framework Business Component BAPIBAPI ALE BAPIBAPI Business Component • Business Component - contains business functionality • BAPI - interface between the components • ALE - integration of components
    28. 28. SAP Technical Overview Business API (BAPI) • Defined method of a business object • Standardized methods allow customers to integrate their software with R/3 • Object-oriented in nature • BAPIs from all development platforms that support the SAP Remote Function Call (RFC) protocol
    29. 29. SAP Technical Overview Other Interfaces • Application Link Enabled (ALE) - Interface that links different SAP systems and external application systems – Transport special data structures known as IDOCS (Intermediate Documents) • Object Linking and Enabled (OLE) - enables desktop users to access SAP data from many OLE client programs
    30. 30. Basic Functions of Basis
    31. 31. SAP Technical Overview Basis Functions • Hardware and Database Administration • User and Security Administration • Client Maintenance • Correction and Transport System (CTS) • Data Dictionary • Online Service System (OSS) • Performance Monitoring and Tuning
    32. 32. SAP Technical Overview Hardware and Database Administration • Hardware upgrades - adding memory or servers • Database backup and recovery • Database optimization • Disaster Recovery
    33. 33. SAP Technical Overview User Administration • Create users and assign profiles • Modify, lock and unlock users • Develop authorizations and profiles
    34. 34. SAP Technical Overview Client Maintenance • Create clients • Copy and refresh clients • Client imports and exports • Delete and remove clients • Modify change options
    35. 35. SAP Technical Overview Correction and Transport System R/3 System R/3 System R/3 System Development ProductionQuality Assurance Change Request Moving changes from one R/3 system to another
    36. 36. SAP Technical Overview Online Service System (OSS) • OSS is a set of SAP’s online services such as bug fixes and useful implementation information • OSS Notes • Hotpacks • Remote Connections • Send questions to SAP • ABAP registration
    37. 37. SAP Technical Overview Performance Monitoring and Tuning • Check database usage and storage capabilities • Dialog response time • Investigate ABAP short dumps • Optimize performance characteristics
    38. 38. SAP Technical Overview Computer Center Management System (CCMS) • Manages the entire system - database, application, operating system • Collection of tools and utilities which allow you to monitor and manage the R/3 system • Allows monitoring of multiple R/3 systems • Comes FREE with each SAP system
    39. 39. SAP Technical Overview Computer Center Management System (CCMS) functions • Starting and stopping instances • Monitoring and analyzing workload • Alert capabilities • Operation modes and work process automatic reconfiguration • Instance profile checking and maintenance • Logon load balancing
    40. 40. Question & Answers
    41. 41. Should you require any further information please do not hesitate to contact us • http://www.saponlinetrainings.net • -sap basis online training contact us: • info@magnifictraining.com or +919052666559 • By Real Time Experts from Hyderabad, • Bangalore • ,India,USA,Canada,UK, Australia,South • Africa.
    42. 42. Thank you !
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