SAP NetWeaver is a web-based, open integration, application platform
that serves as the foundation for enterprise service-oriented architecture
(enterprise SOA) and allows the integration and alignment of people,
information, and business processes across business and technology boundaries.
It allows the composition, provisioning, and management of SAP and non-SAP
applications across a heterogeneous software environment. SAP BASIS training by experienced SAP professional with updated
course curriculum from SAP Trainings Online.
The following table defines the Main Use Cases of SAP NetWeaver and
its key area:
To implement these use cases, SAP has provided mapping between use
cases and SAP NetWeaver software components.
Consider the use case of data warehousing, it has multiple product
instances and client tools to use NetWeaver for data warehousing. Learn more
from SAP NetWeaver training.
SAP NetWeaver is one of the central components of the entire SAP
software stack and provides you a platform for other components and JAVA and
ABAP applications. Learn ABAP and its applications see more from SAP ABAP training.
SAP Application server consists of multiple application server
instances and also database servers. With use of dialog instance, it also
contains message server and an enqueue server.
The following is a dialog instance executed by a user:
These are the different components of the
Dialog Instance:
Internal Communication Manager: This is
used to process both client and server web requests. It supports protocol –
HTTP, HTTPS, SMTP.
Dispatcher: This is used to distribute
the user request to different work processes. If all the work processes are
busy, requests are stored in the dispatcher queue.
Work Processes: These are used to
execute Java or ABAP programs.
SAP Gateway: This provides RFC interface
between SAP instances.
Message Server: This is used for message
communication and also balances the load in SAP system.
Installation options for
SAP NetWeaver
SAP NetWeaver provides the following installation options:
ABAP System: This comes with an
integrated VM Container. With this installation, you can run ABAP programs and
selected SAP Java applications.
Java System: The components to the right
in the above image constitute the Java System. With the installation of this,
you can run J2EE applications but not any ABAP programs.
ABAP + Java system: All the components
shown in the above image constitute the ABAP + Java System.
Application center and
instances
The SAP NetWeaver work center includes the configuration of the
following tools:
Adobe Document Services: This allows you
to register the Adobe Reader Rights credentials as well as keep track of all
unlicensed interactive form designs in your system.
Application Module: This allows you to
view the details of the deployed applications and their modules. Here, you can
also perform the run-time configuration of the application modules.
Application Resources: This allows you
to enable applications to make use of external resources. A NW Administrator
can add or delete the application resources.
Authentication and Single Sign-On: This
allows you to choose the required authentication mechanism for your
applications. You can configure the following authentication and SSO
AS Java as a Service Provider
Kerberos
Certificates and Keys: This allows you
to manage the AS Java certificates and keys.
Composite Application Framework Authorization Tool: This allows you to manage business rules and Instance Level
Permissions for CAF applications, business object nodes and AS Java instances.
Configuration Wizard: You can make
technical settings required for the technical processing of a system or a
technical scenario.
Destinations: This can be used to
specify the remote service's address and the user authentication information
for remote connections.
Development Infrastructure: This is
required while developing with Java and you want to manage it with Transport
Management System (TMS).
Identity Management: This allows you as
an administrator to control applications access by creating users and providing
these users with a means of authenticating themselves to an application.
Internationalization: This allows you to
manage data from double stack systems and also used for synchronization
purpose.
Java HTTP Provider Configuration: You
can create new virtual hosts and configure existing ones for all registered
systems.
Java Class Loader Viewer: You can
monitor the hierarchy and references between the class loaders in the AS Java.
Java System Properties: Using this, you
can view current system configuration of Application server JAVA and you can
edit the properties that are marked as online modifiable.
JMS Server Configuration: This is used
to create new JMS resources.
Licenses: You can request and install
new SAP licenses.
Log Configuration: You can view current
log configuration, change security or reset it to default.
Message Server: You can monitor message
server parameters and settings.
Managing Java instances
using NWA
Follow these steps to change the status of Java instances at
runtime.
Step 1: Go to SAP NetWeaver
Administrator > Operations > Systems > Start & Stop
Step 2: Now, go to Java Instances tab
under NWA.
Step 3: You can see all available
instances with corresponding information about the server processes within the
instance.
Step 4: Select an instance to perform
the following functions under NWA.
Start, stop or restart a Java instance.
Enable or disable debug mode for AS Java processes.
View and refresh OS processes.
Clear the DNS cache for a particular instance.
Set a number of server processes (nodes).
SAP NW system landscape
Follow these steps to perform the implementation of SAP NetWeaver
system:
Step 1: Plan the implementation by
defining the scope, hardware and software requirements, and release
instructions.
Step 2: Define the system landscape for
the use cases.
Step 3: Install the components of SAP
NetWeaver system.
Step 4: Configure SAP NW systems.
System landscape management
using SAP solution manager
SAP recommends the use of the latest version of the SAP Solution
Manager to manage your system landscape. It is important to correctly define
your SAP system landscape in the following versions of SAP Solution Manager to
maintain it correctly.
SAP solution manager 7.0
You can use the SAP Solution Manager System Landscape transaction
code — SMSY for the complete system description.
SAP solution manager 7.1
SP01 to SP04
You can use the Landscape Management Database transaction code —
LMDB to maintain technical system information. To maintain logical product
information, you can use the transaction code — SMSY.
SAP solution manager 7.1
SP05 and higher
You can use the Landscape Management Database transaction code —
LMDB for the complete system description and in this, transaction code — SMSY
is no longer required.
How to learn SAP BASIS?
SAP
Trainings Online is a deceptively simple e-learning and SAP training authoring solution. Create super-effective training
content and deliver courses via Virtual and implant in existing systems. It is very important for BASIS consultant to have hands on
experience on live servers. It is right to have training because every scenario
could not be created just by installing SAP. We provide
training in many countries India, USA, UK, Canada, Australia, and New Zealand.
Email:
contact@saptrainingsonline.com
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