Installing Additional Appl. Server(AAS) for SAP PI 7.4

[Former Member]

Hi experts:

     I think I am missing something here.

I am installing a distributed Sap netweaver PI 7.4 using the last SWPM. I have installed the ASCS, SCS, DB and PAS (Primary appl. server). Now, I want to install an Additional Appl. Server. Since PI is still dual stack, is in this point where I have the problem.

When I select the option "additional application server" into SWPM it installs only abap but I need both, java and abap. 

How should be the correct way to install a new dual stack AAS? should I install an AAS for java and other for abap? I am a bit lost here, there had been too much changes in the sap world lately

Regads.

[Former Member · Accepted solution]

Do not ask why but, it works using an older version of SWPM.... the truth is out there.

[ashish_vikas]

please also review if you should install Dual stack.. (It is still supported by SAP)

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/60bf3650-e219-3010-ef93-d11928aa8...

note that a single-stack SAP NetWeaver Process Integration Java exists that offers 95% of the features of classical dual-stack implementations. Therefore, customers should investigate whether an existing SAP NetWeaver PI implementation can be replaced by a Java-only implementation of SAP NetWeaver PI

best regards

ashish

[Former Member]

Dual Stack is still supported for PI and Solution Manager. I am installing a PI.

Besides I am just the Basis here, the project is using dual stack PI already they just need another Aplication server.

[ImtiazKaredia]

Hi,

What is the path you selecting in installing additional application server.

Is it under SAP Process Integration tree structure?

Thanks

Imtiaz

[Former Member]

First of all, thanks for your reply.

1) I have installed all the components under SAP NETWEAVER 7.4 --> Oracle --> SAP Systems --> Process Integration --> Distributed System (no AAS here as you can see).

2) I tried to install the AAS in the that path, but it installed only ABAP so, I tried the (3) option but with the same result, just abap.

[ImtiazKaredia]

Hi,

Third option should work. However as you mentioned it did not, Can you try below alternative

Generic Installation Options  -> Oracle

Thanks

Imtiaz

[Former Member]

Thanks again but no, no AAS installation option in that path.

[ImtiazKaredia]

Hi,

After using option 3 , what was the directory structure created?

It looks weird that option 3 did not work, possibly your installer could be corrupt. Can you download new installer and check.

Thanks

Imtiaz

[Former Member]

The /usr/sap/<SID>/DXX/j2ee/ does not exist and I don't see any java process up. I can not show you right now because I have just uninstalled it. I will try with a previus version of SWPM.

I will let you know, thanks for your support.

[divyanshu_srivastava3]

Hi Pablo,

You should choose the 2nd option and prepare your system as per the OS.

Regards,
Divyanshu

[Former Member]

Thank for your answer, I did not understand what you mean with "and prepare your system as per the OS."...

[divyanshu_srivastava3]

Hi Pablo,

I mean to say that please refer OS/DB specific installation guide and prepare your system so that you don't face any problem at the time and after the installation.

Regards,

Divyanshu

[Former Member]

Yes I followed the guides but in the AAS section it only say "install as many AAS as you want" no more details.

[divyanshu_srivastava3]

Preparing OS for PAS and AAS is similar.

[Former Member]

In fact, it is the same. PAS is installed correctly with abap+java, AAS just abap... it is very weird.

[divyanshu_srivastava3]

Please refer

Process Integration Landscapes - SAP NetWeaver Process Integration - SAP Library

Regards,

Divyanshu

[Former Member]

Very useful link, but that is not my scenario. My customer only needs an additional application server to load balance.

[divyanshu_srivastava3]

Then perhaps you can either go with AAS or federated PI.

Dual stack AAS is not applicable

[Former Member]

I re-read the link, where do you read that "Dual stack AAS is not applicable"?

[divyanshu_srivastava3]

Hi Pablo,

Because if you read the landscape pattern, it says why we "each PI instance covers either different kinds of scenarios or different parts of the system landscape.".

So, load-balancing is not like we see in other systems.

[Former Member]

Thanks again, I will read the link a bit more carefully...

But, I found this link that talks about installing additional application servers. Sadly it says "For more information, see the Installation Guides." and the installation guide says nothing at all.