Why is SLD necessary for connecting backend?

[Former Member]

Hi, all.

Let me ask one basic question.

When the WD Java application connects to Backend, what is the role of

SLD? i know that SLD is necessary when runtime but all the necessary info

for connection is set in the JCo connection settings!

What is happening between WD Java and SLD when runtime?

Best Regards.

Sejoon

[abhimanyu_lagishetti7 · Accepted solution]

Hi Sejoon,

<br>

A modern computing environment consists of a number of hardware and software components that depend on each other with regard to installation, software updates, and demands on interfaces. <b>The SAP System Landscape Directory (SLD) simplifies the administration of your system landscape</b>.

<br><br>

I think while connecting to backend systems at runtime all the

information is given in the JCo itself, SLD will not come into picture in this case.

<br><br>

Regards<br>

Abhimanyu L

[Former Member]

Thanks all.

Well, let me ask one further question.

i tested the following two cases.

case 1. SLD is on the same server(instance) of WD Java

WD Java app could connect to backend even if SLD was down.

And "Check SLD Connection" of Web Dynpro Java Content Administrator

was O.K even if SLD was down!

case 2. SLD is on the different server of WD Java

WD Java app could not connect to bacekend when SLD was down!

Of course, "Check SLD Connection" was failed.

Does anyone tell me the reason of this phenomena?

Best Regards.

[suresh_krishnamoorthy]

Hi Sejoon,

See this thread too:

Regards, Suresh KB

[Former Member]

Hi,

All the technical systems are available to the portal and provide the associartion to the differenet technical systems and provide portal as a single point of access.

There is no direct assosiation between the java system to R/3 system for we are going to use the one connecter for connecting r/3 system from the java system.for this we are using the JCo(Java connector) by this connector only we are communicating R/3 system when you needt to connect the R/3 system that system should be available in your portal then by usin SLD we can add r/3 system as new technical sytem and by using JCo name(two logical destination systems Meta, Model systems) we are directly connecting to avail r/3 and get the data at the runtime.

The System Landscape Directory of SAP NetWeaver (SLD) serves as a central information repository for your system landscape. A system landscape consists of a number of hardware and software components that depend on each other with regard to installation, software updates, and demands on interfaces

Go thru this link you know all the details

http://help.sap.com/saphelp_erp2005vp/helpdata/en/31/f0ff69551e4f259fdad799a229363e/frameset.htm

Thanks,

Lohi.

Message was edited by:

Lohitha M