Installing an ERS

Objective

After completing this lesson, you will be able to install an ERS

Installing an ERS

Installing an ERS for an SAP S/4HANA Server System

After installing the SAP S/4HANA Server system with a Primary Application Server Instance, ABAP Central Services Instance and Additional Application Server Instance, you want to install an Enqueue Replication Server Instance (ERS) for your SAP system.

Prepare the File System and Start SAPinst

For this installation, we would like to make use of the option SAPinst offers to install the SAP system using a virtual host name and a stack xml file, calculated by Maintenance Planner.

The installation options offered, depend on the version of SWPM used.

Select the Profile Directory

SAPinst asks for the location of the system-wide used profile directory of the SAP system, the ERS should belong to. By evaluating the location and content of the files therein, SAPinst acquires the essential information on the SAP system, the ERS should belong to.

Prepare Upgrade of SAP Host Agent and Select Instance Number

We already performed a SUM run, which updated the SAP Host Agent.

Choose an instance number for the ERS.

Restart ASCS and Cleanup of OS User
Parameter Summary and Start of Installation
Installation Finished, Check of Result

The installation of the ERS finished successfully!

You can check the result via transaction SM12.

Note

In older releases with Enqueue Server 1 active, you used transaction SM12 for monitoring the enqueue process. For newer releases using Enqueue Server 2, you can use SMENQ for monitoring the enqueue process. In SAP_BASIS 755 and above SM12 and SMENQ lead to the same transaction.

You can review the installation procedure by checking the Logs.

Installing an ERS for an SAP S/4HANA Server System

For the demonstration steps and data, see the exercise Install an ERS for an SAP S/4HANA Server system.

Install an ERS for an SAP S/4HANA Server System

You will install an Enqueue Replication Server (ERS) Instance for the SAP system S4X as described in the training material, using the input values, selections, given below.

Note

Ensure that you are using the user account install to execute this installation.

Steps

  1. There are different methods available for logging on to the training host. The following description assumes that you are using MobaXterm, to open a connection of type SSH to the host.

  2. Log on to the server s4xhost using the user install and the password provided by your instructor.

  3. If not already done for the Prerequisites Checks: Create a new directory named /usr/sap/SWPM:

    cd /usr/sap

    mkdir SWPM

  4. If not already done for the Prerequisites Checks: Extract the SWPM archive, provided in the folder /usr/sap/Media/Installation_S4X/02_MP_Download to the newly created directory /usr/sap/SWPM.

    cd /usr/sap/SWPM/

    /usr/sap/Media/Installation_S4X/01_SAPCAR/SAPCAR_1324-80000935.EXE -xf /usr/sap/Media/Installation_S4X/02_MP_Download/SWPM20SP18_1-80003424.SAR

  5. If not already done for the Prerequisites Checks: Create a new directory named /usr/sap/Install_Log_and_Work and set this directory as the log directory for the SWPM.

    mkdir /usr/sap/Install_Log_and_Work

    export TMP=/usr/sap/Install_Log_and_Work

  6. Start SAPinst.

    Make sure that you are still located in directory /usr/sap/SWPM/.

    .

    Call ./sapinst SAPINST_USE_HOSTNAME=s4xhost SAPINST_STACK_XML=/usr/sap/Media/Installation_S4X/03_MP_Stack_XML/MP_Stack_1002030160_20240627_.xml

  7. Use a browser on the WTS to open the URL that SAPinst displays, e.g. https://wdflbmt0902.wdf.sap.corp:4237/sapinst/docs/index.html

  8. Ignore/confirm warnings about https, as no SSL communication is configured.

  9. Authenticate in the logon window with the user install and the corresponding password.

  10. In the Software Provisioning Manager, expand Software Provisioning Manager 2.0 SP 18 → System S4X (SAP S/4HANA 2023) → SAP S/4HANA Server 2023 → SAP HANA Database → Installation → Application Server ABAP → High-Availability System → ERS Instance, and choose Next.

  11. Continue the installation process screen-by-screen, entering the data as shown in the table.

    Parameters and Data for Installing an Enqueue Replication Server (ERS) Instance

    Screen NameField NameValue
    General SAP System ParametersProfile Directory/usr/sap/S4X/SYS/profile
    SAP System AdministratorAccount: s4xadm, Password of SAP System AdministratorMasterS4X10!
    Upgrade SAP Host AgentDetected SAP Host Agentdo not select, deselect
    ERS InstanceNumber of the ERS Instance19
    ERS InstanceERS Instance Hosts4xhost
    Activate ChangesActivation of Instance Changesselect Automatic Instance and Service Restart
    Cleanup of Operating System UsersYes, clean up operating system usersdo not select
    Parameter Summary select parameters/settings that you would like to change – choose Revise if required.
    Information select Ok
    Feedback to SAP select Close
    Execution of Service has been completed successfully select Exit

Result

You have successfully installed an Enqueue Replication Server (ERS) Instance for your SAP S/4HANA Server system.

Log in to track your progress & complete quizzes

Learning

SAP FacebookSAP YoutubeSAP LinkedIn