Sap basis material in pdf

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Link Accounts. Verify SAP Software. Read the document and highlight the steps involved inst. Internet connection to resolve the runtime issues.

Specify an entry in etchosts Setup Virtual Memory Oracle services. SAP Installation consists of 3 Types: 1. Central Instance: 2. Database Instance: 3. Dialog Instance: Central Instance: This is the instance where all the services are configured and it manages all the instances through message server.

Select central instance. Specify the host name. Specify the path for usr directory C:,D:, or E…. Specify kernel path.

Continue installation. Database Instance: 1. Select Database Instance. Specify SID, host name and Instance number. Specify the installation on new database or use existing database. Specify the log files location. Specify the path of Kernel Directory. Specify the path for SAP directory [sapreorg, spacheck, sapbackup, saptrace, saparch, oraarch] 9. Specify the path for data directory. Specify passwords for system, sys, for DB etc.

Provides additional memory and CPU. Dialog Instance is also called as Application Server and these application servers will be installed mostly in Production system only, in order to serve huge number of users. Select the dialog instance. Specify the CI. Host name 3. Specify the DI Host name This is where data is stored. Specify the kernel path. Specify the passwords. Double click SapGuiSetup.

Give the instance entries by click on new entry button and specify application host name, Instance number and SID of the server. If there are more number of entries was present, and then copies the file Saplogon. When we click on new tab in SAP GUI to enter description of the new server after saving it will be entered into this file. This file consists of message server details. It contains the path of library. Check CI installation:- 1.

Check the services. Note: sapstartsrv. Type details of the SAP system which is asking. Profiles: Profiles are used to configure various system parameters. Note: Here there is only one Default. The parameters which are configured in default profile will be overridden by Instance profile.

Startup problems: 1 Check all the services. SR13 5. SMLT :- Perform any additional language installation. STMS 9. Network Interface problem. Check the entries. GUI showing special characters. It is used to kill the process at OS Level.

Stopped : The process is stopped due to an error. It displays the processes belongs to all the instances. We can terminate the session or the user completely using End session or logoff user. Example: Daily report, Weekly sales report or expensive to run in the peak hours so they are scheduled to run in the background mode during off peak hours.

Process Flow 1. User submits the request via dispatcher to a WP. The Dialogue work process handles the request and updates the tables 25 BWP looks into the table and identify the jobs which are in the Ready State. Scheduled: The job is defined but time to execute is not specified.

Released: The time to execute is specified 3. Ready: The Time to run the job is reached 4. Active: BWP processing the task 5.

Cancelled: The job is cancelled 6. ABAP Program 2. External Command 3. External Program 26 ABAP Program - Is a predefined program that will be run in the background with user inputs as variants. Variant - Is a predefined value that is populated during the runtime. These commands are OS commands that will be executed at command level. Specify the name of the target host. Job Started: When dependent job started this gets triggered.

Event: When an event triggered in SAP it also triggers the job as well. Instance 2. Operation Modes Peak and Off Peak 3.

Specify the processes for modes Goto SM63 to define timing for the modes 27 The existing jobs are running for a long time i. The configured BTC processes are not sufficient to handle the requests in Ready status.

May be due to heavy load on the system 4. Action: 1. Schedule the jobs appropriately during off peak hours. Active indicates the following 1. Jobs are expensive and running to fetch the content.

Jobs are waiting for the locks to update the records. Some jobs are bound to run for hours and based on history leave them to run. Report to SAP in case of dead locks. Reasons for cancellation of Job 1. File system problems: BTC reads from the file system to update the database.

File not opened, or corrupted, file sharing issues, file came with different characters, file not found as well. Variants are not properly defined.

Dead locks issue Lock mechanism congested 5. Update mechanism failed 6. Target systems are not available to process the jobs. Standard Background House keeping Jobs 1. RSPO - Delete the old spool logs and files 4. Used to display the jobs based on job, username, date and status 2. It displays the job logs 33 Do not kill the active job unless it is permitted by the owner 4.

We can repeat the scheduling of the job if required 5. Background job out put is a report to a spool Printer , fax or email or even updating a database Eg. Client Copy 6. We can move the jobs from one instance to another instance. Consider the above screen Active jobs can be moved. SAP Job Scheduler 5. The tool defines when to trigger, how to handle various statuses and alert users accordingly. Vendors instead of communicating in hand documents they are advised to communicate in soft documents.

SAP also sends soft documents as well. BTC Jobs performs the following: 1. Run long running reports for an End User 2. Runs payroll for the employees 3. Client copy for the technical consultants 4. Dunning report for Finance team 7. Weekly, Monthly and Annual Reports 8. Runs standard jobs for House Keeping 35 Dispatcher handles the request and provides a dialogue process to it. Dialogue process interprets the request and communicates with enqueue process to provide a lock to update the record consistently.

Update gets initialized and reads from Temp Tables and updates the permanent tables synchronously. Update inherits the locks and releases them upon updating permanent tables. When the Dialogue updates the temp tables the record is displayed in SM13 which will be processed by update.

If the records stays for longer time in INIT status that indicates the updates are busy or there are no sufficient update processes or update mechanism is deactivate from SM Longer Update 2.

Update deactivated in SM14 2. Programming problems in LUW 3. If any one of the LUW is failed the entire transaction is rolled back. That is the reason why dialogue updates Temp Table. User submits the request. Dialogue handles the request. Obtains lock from Enqueue so the data consistency is achieved and the records are only for display. Update inherits the locks. Updates the database based on transaction ID. Update releases the lock from the record. The following are the statuses displayed in SM13 Transaction.

INIT The record is waiting to update by an update process. The update are terminated or cancelled due to the following reasons 1. Table space overflow 2.

Max Extents reached 3. Archive struck 4. Programmatically Error 5. It can be activated from SM Deletes the executed update requests. Reorganize the update tables. Its a background job V1 and V2 updates needs to be defined in the system.

V1 handles critical updates and V2 handles the non-critical updates which are defined by the programmers. There will be only one message server through out the System. Assign the instance. Note: The load is calculated based on in ST07 5. User communicates using GUI. Message server maintains the details of favorite server and routes the request to that dispatcher 4. Dispatcher handles the request - Queue - Dialogue Message server obtains the lock for dialogue process if the request is coming from the Dialogue instances.

It provides locks from a lock table before a record gets updated and ensure that the record is available for display during an update. There will be 1 One Enqueue process installed during installation. It is also possible to increase Enqueue processes to more than one depending upon the updates but most of the customer environments there will be only 1 One enqueue process.

Enqueue server maintains the lock table on the shared memory of the Central Instance or on the instance where it is installed It is recommended to increase the Enqueue processes only on the Central Instance. Technically the Message and the Enqueue should reside on the same instance It is not mandatory.

If both are installed on the same machine then it will be more comfortable for message server to communicate with Enqueue process to obtain locks for Dialogue process that are coming from other instances. Locks are monitored in transaction SM In principle the lock which are older than one hour should be reported to the escalation manager. Check whether the update server is still performing the updates. If the updating has stopped, then the lock table can quickly become over filled with the locks held by update requests.

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