After SAP INSTALLATION and HOW TO LOGIN SAP SYSTEMS

Summary

The video script provides a detailed tutorial on installing an SAP system and its subsequent configuration. It explains the creation of two instances, the ASCS and the primary application server, each with specific roles and processes. The script covers the importance of work processes, the use of the SAP log-on pad for system access, and the execution of transaction codes for system checks. It also emphasizes the significance of the SI transaction code for verifying system consistency post-installation.

Takeaways

• 😀 The installation of an SAP system creates two instances: the ASCS (Application Server Central Services) and the primary application server.
• 🔧 The ASCS instance specifically houses the message server and NQ server, while the primary application server contains dialogue, update, and background work processes.
• 🛠️ After installation, the system requires a consistency check using the SI transaction code to ensure there are no errors and that the installation was successful.
• 🔑 The SAP log on pad is essential for logging into the SAP system and needs to be installed and configured with the system details for access.
• 👤 Users are created at different levels during the installation: system level (e.g., SID ADM), SAP level (e.g., SAP*, DDIC), and database level (DB SID ADM).
• 🏢 The concept of 'instances' refers to a specific set of services running on dedicated systems within the SAP architecture.
• 🔄 The SAP system has a three-tier architecture consisting of the presentation layer, application layer, and database layer.
• 🔑 The SID (System ID) is crucial as it determines the specific SAP system or server that is being installed and operated.
• 🔍 The SAP system uses a set of transaction codes (T-codes) to navigate and perform various business processes within the application.
• 📊 The installation process also sets up default clients (e.g., 000 and 001) within the SAP system, which are used for storing and managing business data.
• 🔄 Post-installation activities include adding the system to the SAP log on pad and performing checks to ensure the system is running correctly and without errors.

Q & A

What is the purpose of creating an SCP system during SAP installation?

The purpose of creating an SCP system during SAP installation is to establish a specific system or SID as an SAP server or SAP application. This system will host the SAP application layer on top of the database layer.

What are the two instances created during the SAP installation?

During SAP installation, two instances are created: the primary application server and the ASCS (Advanced SAP Central Services) instance. These instances host different sets of services necessary for the SAP system to function.

What does the term 'instance' mean in the context of SAP?

In the context of SAP, an 'instance' refers to a specific set of services that run on the system. Each instance is dedicated to performing certain tasks within the SAP environment.

What are the three layers of the SAP architecture mentioned in the script?

The three layers of the SAP architecture mentioned are the presentation layer, the application layer, and the database layer.

What are the seven SAP work processes created during the installation?

The seven SAP work processes created during installation are dialogue (D), update (U), background (B), message server (M), gateway (G), spool (S), and enqueue server (E). These are often referred to as the 5+2 model, with five processes in the application server instance and two in the ASCS instance.

What is the role of the ASCS instance in an SAP system?

The ASCS instance in an SAP system is responsible for running the message server and enqueue server processes. It acts as a central point for communication within the SAP system.

What is the role of the primary application server in an SAP system?

The primary application server in an SAP system is responsible for running the remaining work processes such as dialogue, update, background, gateway, and spool processes, in addition to the dispatcher, IGS, and IC man services.

What is the significance of the transaction code SI in the SAP system?

The transaction code SI is used to perform a consistency check in the SAP system. It helps verify whether the installation has been successfully completed and if there are any errors or issues reported.

How can users access the SAP system post-installation?

Users can access the SAP system post-installation by using the SAP Logon Pad, where they can add their SAP system details and log in using the client number, user ID, and password.

What are the default clients created during the SAP installation?

The default clients created during the SAP installation are client 000 (trio) and client 001. These are known as master clients and contain master data as part of the installation.