Hi All,

As we all know we  can install a SAP system with below option.

1. Standard system

2. Distributed system and,

3. High Availability System

Here, I am writing about Distributed system installation.

Overview:

An SAP system consists of SAP instances. An SAP instance is a group of processes that are started and stopped at the same time.

In a distributed system, every instance can run on a separate host.

A distributed system consists of the following instances:

  • ABAP Central services instance (ASCS instance)
  • Central services instance (SCS instance)
  • Database instance (DB)

          The ABAP stack and the Java stack use their own database schema in the same database.

  • Primary application server instance (PAS)

Optionally you can install one or more additional application server instances.Distributed ABAP+Java System.pngAdditional Application Server Instance for a Distributed System.PNG

  • Hardware and Software Requirement

Operating System        : Windows Server 2008 R2 Standard 64 BitMinimum Hard Disk    : 150 GBMinimum RAM            : 6 GBDatabase                    : 11.2.0.3 Patch 39SAP Media                  : SAP Netweaver 7.3 EHP1

  • INSTALLATION Checklist:

1. Database Installation and Patch upgrade on Database Instance host.

2. Install the ABAP Central Services Instance (SAP Global Host) on CI host.

3. Database installation on DB host.

4. Install the Central Services Instance on CI host.

5. Install the Primary Services Instance on CI host.

6. Install Additional Application Server Instance on CI or respective server (Optional).

INSTALLTION Process:

1. Database Installation and Patch upgrade on Database Instance host.

Double click on sapserver.bat file to start the Oracle Database

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Provide the installation drive and Database<SID>

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It will start the oracle Installation wizard like below..

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Click on Next

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Ignore the warning and click on Yes.

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Click on Next

Select Install database software only and click on Next.

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Select Single Instance database Installation and click on Next.

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Select the Language and click on Next.

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Select Enterprise Edition and click on Next.

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Check the Oracle Home and Path and click on Next.

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It will check the prerequisite

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Click on Install to start the installation.

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Oracle installation started.

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Oracle installation completed. Click on close.

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Oracle DB Patch:

We need to download the latest OPatch and Patch Bundle from service market place(SMP).

Prerequisite:
1. Stop all the Oracle services.

2. OPatch should be latest

3. Before apply -Please read README file in patch directory.

4. Set the ORACLE_HOME and PATH variable

Setting up ORACLE_HOME and PATH environmental variable.

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Now, Copy the Patch Bundle to OPatch directory and start the apply by running the command: OPatch apply

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Type – y

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OPatch successfully completed.

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2. Install the ABAP Central Services Instance (SAP Global Host) on CI host.

Start the sapint and click on Next

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Select Custom and click on Next

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Provide the SAP<SID> and Path, Click on Next

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Select the FQDN and click on Next

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Select the Kernel file and click on Next

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Provide the master password and click on Next

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Select the Domain model and click on Next.

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Click on Next

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Provide the Instance no for ABAP Central Service Instance and click on Next

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Default ABAP message server port.

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Parameter summery

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ABAP Central Service Instance installation completed.

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Continue….

Part 2: http://scn.sap.com/community/netweaver-administrator/blog/2016/04/20/step-by-step-distributed-installation-on-sap-part-2

Part 3: http://scn.sap.com/community/netweaver-administrator/blog/2016/04/20/step-by-step-distributed-installation-on-sap-part-3

Thanks,

Raj Kishor

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