SAP had removed optional dual stack as useful deployment option already quite some time ago – but so far, only for optional dual-stack setups, while there were still some exceptions for mandatory dual-stack setups even in higher releases, such as with SAP NetWeaver 7.4. There, SAP Process Integration (SAP PI) still is (and will remain) a mandatory dual-stack system and the system provisioning procedures, such as installation and system copy, offer corresponding procedures also to handle those dual-stack systems.

 

With SAP NetWeaver 7.5, this now changes: as of this release, also SAP PI no longer is a dual-stack system, so no dual-stack systems are supported in this release – without exception.

 

This has implications about how you install SAP PI systems with release 7.5 or higher and about how you upgrade to such releases, as outlined below.

 

Installation of SAP PI 7.5 and higher

As a consequence, compared to previous releases, the standard installation of SAP PI 7.5 and higher does no longer install a dual-stack system, but consists of two installation procedures: one for a separate ABAP stack and one for a separate Java stack (besides the option to install the Advanced Adapter Engine Extended, which is based on AS Java only – for more information about SAP Process Integration release recommendations, see SAP Note 1515223). In detail:

  • First, you perform the installation of ‘Application Server ABAP for SAP Process Integration’, as offered by Software Provisioning Manager: there, also Java users for the Application Server Java (AS Java) for the SAP PI system are created and the ABAP system is prepared to get connected to the AS Java system.
    AS_ABAP.jpg
  • Second, you perform the installation of ‘Application Server Java for SAP Process Integration’, also as offered by Software Provisioning Manager: there, the ‘Application Server Java for SAP Process Integration’ system uses the User Management Engine (UME) of the ‘Application Server ABAP for SAP Process Integration‘ system that you must have installed before (as outlined in the previous step).
    AS_Java.jpg

 

Upgrade to SAP PI 7.5 SP1

After upgrading to SAP PI 7.5 SP1, you first have to split the still existing dual-stack system before you can use it productively – for this, the standard dual-stack split procedure that exists for quite some time now also supports SAP PI 7.5 SP1 and higher.

 

For more information about the dual-stack split procedure, see the Dual-Stack Split page in SAP Community Network and the dual-stack split guide available at http://service.sap.com/sltoolsetSoftware Logistics Toolset 1.0DocumentationSoftware ProvisioningDual-Stack Split: Systems Based on SAP NW 7.1 and Higher.

 

 

Outlook at SAP Solution Manager 7.2

As you maybe know, also SAP Solution Manager 7.0 and 7.1 systems are mandatory dual-stack systems. With SAP Solution Manager 7.2, this is also planned to be changed. Also for these systems, we plan to extend the support of our reliable dual-stack split procedure. Expect to get more information as soon as the ramp-up of SAP Solution Manager 7.2 has started.

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8 Comments

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    1. Boris Zarske Post author

      Dear Sam,

      For more information about a migration of SAP PI content to real single-stack objects (independent from actual technical system layout underneath), see:

      Best regards,

      Boris

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      1. Sam Venkat

        Thanks Boris, yes I am aware of the procedures you mentioned. But my question is on the technical system layout perspective. In future if I want to EOL ABAP and make it a Java-only PI (AEX) is it possible?  I realize the UME will have to be repointed from ABAP to LDAP. Are there any technical constraints to doing this?

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        1. Boris Zarske Post author

          To my knowledge, unfortunately, there is currently no official procedure to move from ABAP UME to LDAP – maybe there are some experienced consultants that offer a project solution, but I would not be aware of an official path here. Therefore, if you want to EOL the ABAP part in your scenario, I guess you would have to migrate to SAP PO. At least this is my understanding for the time being…

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  1. Javier Alcubilla Alcala

    Hi Boris, good blog.

    We have a doubt about PI 7.5  installation that is very confusing in documentation.

    We want to install a PI 7.5 java only (not PO).

    Which is the option?

    Optional StandAlone Units ->  Advanced Adapter Engine Extended?

    Thanks in advance

    Javi

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    1. Boris Zarske Post author

      Hi Javi,

      Thanks a lot for your feedback! Yes, SAP PI 7.5 Java only would be the Advanced Adapter Engine Extended. There is the option to install AS Java for SAP PI 7.5, but this is only intended to work in combination with the AS ABAP stack for SAP PI (former dual-stack system), not standalone. This is outlined in the SAP PI documentation in section Installation Options (the term “dual usage type installation” for the other installation option is a little bit misleading from my point of view, as it comprises of two systems with two instalations, but the main point is that it just means that you require both an AS Java and an AS ABAP system to work).

      Hope this helps!

      Best regards,

      Boris

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    1. Boris Zarske Post author

      Hi Kasi,

      Yes, SAP Process Integration 7.5 still requires both stacks and as the special installation option for the AS Java system for SAP PI in Software Provisioning Manager tries to re-use the User Management Engine of the AS ABAP, the installation of the AS ABAP has to be performed as prerequisite for this option.

      Please be aware of the option to install Advanced Adapter Engine Extended, which is based on AS Java only in addition to install SAP PI, as outlined in the text above as well. For this, AS ABAP would not be required.

      Best regards,
      Boris

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