SAP Parameter Read Sequence during SAP System Start-up

During SAP System Start-up following sequence is used for reading the system parameters:

1. SAP Kernel
2. Default Profile
3. Instance Profile

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SAP Single Stack System and SAP Dual Stack System

SAP ERP6.0  runs on SAP NetWeaver Application Server (SAP NW AS). The SAP ERP6.0 could run of SAP NW AS ABAP or SAP NW AS JAVA or on both.

A SAP system, which runs on either SAP NW AS ABAP or SAP NW AS JAVA is called as Single Stack System.

A SAP system, which runs on both SAP NW AS ABAP and AS JAVA is called as Dual Stack System. 

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SAP Brief History and SAP Releases

SAP Brief History:

• SAP stands for  Systems Applications & Products in Data Processing
• SAP was founded in 1972 by five former IBM employees.

SAP Releases:

• SAP R/1 : 1973
• SAP R/2 : 1979-80
• SAP R/3 4.0B : 1992

How to check Tablespace with BRTOOLS

How to check Tablespace with BRTOOLS


STEPS:

1) login with <SID>adm or ora<SID>.

2) Input Command : brtools
 
3) Enter 2 for Space Management.

4) Enter 7 for Additional Space Functions. 

SAP Basis Interview Questions

SAP Basis Interview Questions:

1. What are the steps to start and stop SAP system? 
2. How do you troubleshoot when your SAP system goes down?
3. What are the Database Start-up AND Shutdown Steps?
4. What is System Refresh? when and why it is done? 
5. What is the difference between SAP_ALL & SAP_NEW?
6. How to Lock or Unlock a Client in SAP?
7. How do you update the Kernel?