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Overview of Configuring SAP HANA System Replication

13th June 2023 / Leave a comment

Configuring SAP HANA System Replication between a primary and secondary site involves several steps. Here is an overview of the process:

  1. Prerequisites:
    • Ensure that you have a fully installed and configured SAP HANA system on both the primary and secondary sites.
    • Make sure the network connectivity is established between the primary and secondary sites, including the necessary ports for HANA communication.
  2. Enable System Replication:
    • On the primary site, open the SAP HANA Cockpit or SAP HANA Studio.
    • Connect to the primary HANA instance as a user with administrative privileges.
    • Navigate to the “System Replication” section and enable the system replication feature.
  3. Configure the Primary Site:
    • Set the replication mode to “sync” or “async” based on your requirements.
    • Define the secondary site and specify the connection details (IP address, port, etc.) of the secondary HANA instance.
    • Configure the replication parameters like the replication mode, log retention, etc.
    • Save the configuration and start the replication process on the primary site.
  4. Prepare the Secondary Site:
    • Install and configure a new SAP HANA system on the secondary site if it’s not already done.
    • Ensure that the secondary site has the same hardware resources and HANA version as the primary site.
    • Configure the network settings and ensure that the secondary site can communicate with the primary site.
  5. Establish the Initial Data Copy:
    • Initiate the initial data replication from the primary site to the secondary site.
    • This process involves copying the data from the primary database to the secondary database to synchronize them.
    • Monitor the data copy process and ensure it completes successfully.
  6. Test the Replication:
    • Once the initial data copy is complete, verify that the data is consistent between the primary and secondary sites.
    • Perform tests and checks to ensure that the replication is working as expected.
    • Validate that the secondary site is in a synchronized state with the primary site.
  7. Monitor and Maintain:
    • Set up monitoring tools to track the replication status and performance.
    • Regularly monitor the replication processes, log files, and system alerts.
    • Perform periodic checks to ensure the replication is functioning correctly.