How to Migrate to SAP BW/4HANA using SUM with DMO
SAP BW/4HANA is the next generation data warehouse solution from SAP that is built on the SAP HANA platform. It offers many advantages such as simplified data models, faster performance, advanced analytics, and cloud readiness. If you are an existing SAP BW customer, you might be planning to migrate your current system to SAP BW/4HANA and enjoy the benefits of the new solution.
However, migrating to SAP BW/4HANA is not a trivial task. It involves a lot of technical and functional changes, such as converting your data flows, adjusting your custom code, and optimizing your system performance. Therefore, you need a reliable and efficient tool that can help you perform the migration with minimal downtime and risk.
One of the tools that SAP provides for this purpose is the Software Update Manager (SUM) with Database Migration Option (DMO). SUM is a part of the Software Logistics Toolset (SLToolset) that helps you update and maintain your SAP systems. DMO is an option of SUM that allows you to combine the system update and the database migration in one step. With SUM with DMO, you can migrate your SAP BW system to SAP BW/4HANA and to SAP HANA database in one tool run.
In this blog post, we will explain how to use SUM with DMO for SAP BW/4HANA migration, covering the following topics:
- The prerequisites and preparation steps for using SUM with DMO
- The main phases and steps of using SUM with DMO
- The tips and tricks to ensure a smooth and successful migration using SUM with DMO
Prerequisites and Preparation Steps for Using SUM with DMO
Before you start using SUM with DMO for SAP BW/4HANA migration, you need to fulfill some prerequisites and perform some preparation steps. Some of the main ones are:
- Check your source system compatibility: You need to make sure that your source system meets the minimum requirements for using SUM with DMO. For example, your source system must be based on SAP NetWeaver 7.0 or higher, must have Unicode enabled, and must have a valid maintenance contract. You can use the Simplification Item Check tool from SAP to check your source system for compliance with the Simplification List for SAP BW/4HANA.
- Choose your target system version: You need to decide which version of SAP BW/4HANA and SAP HANA database you want to migrate to. You can choose between different deployment options, such as public cloud, private cloud, or hybrid cloud. You also need to download the software packages for your target system version from the SAP Software Download Center.
- Plan your migration strategy: You need to plan how you will perform the migration using SUM with DMO. You need to consider aspects such as testing, backup, downtime, monitoring, and post-migration activities. You also need to prepare a contingency plan in case of any issues or errors during the migration process.
- Prepare your source and target systems: You need to prepare your source and target systems for the migration using SUM with DMO. For example, you need to backup your source system data and configuration, clean up any obsolete or redundant data, adjust any custom code or settings that might cause compatibility issues, and install any required patches or notes. You also need to set up your target system environment, such as creating a schema and a user for SAP HANA database, configuring the network and firewall settings, and installing any required software components.
Main Phases and Steps of Using SUM with DMO
Once you have completed the prerequisites and preparation steps, you can start using SUM with DMO for SAP BW/4HANA migration. The main phases and steps of using SUM with DMO are:
- Initialization phase: In this phase, you start SUM with DMO on your source system host and provide some basic information, such as the target system version, the target database connection details, and the migration mode (pipe or file). You also select some options for optimizing the migration process, such as table splitting or parallel export/import.
- Extraction phase: In this phase, SUM with DMO extracts the metadata of your source system and creates a shadow repository on the target database. It also performs some pre-checks on your source system to identify any potential issues or conflicts that might affect the migration process.
- Configuration phase: In this phase, SUM with DMO performs some configuration tasks on your source system and target database. For example, it adjusts some profile parameters, creates some temporary tables and views, activates some data dictionary objects, and sets some optimization flags.
- Execution phase: In this phase, SUM with DMO performs the actual migration of your data and applications from your source system to your target system. It uses R3load tool pairs to export and import the data in parallel, using buckets (work packages) and pipes (memory buffers). It also performs some data conversion and validation tasks, such as converting the data types, checking the table counts, and comparing the table checksums.
- Finalization phase: In this phase, SUM with DMO finalizes the migration process and switches your system connection from the source database to the target database. It also performs some post-migration tasks, such as deleting the temporary objects, updating the system information, and restarting the system.
Tips and Tricks for Using SUM with DMO
To ensure a smooth and successful migration using SUM with DMO, you can follow some tips and tricks, such as:
- Use the latest version of SUM with DMO: You should always use the latest version of SUM with DMO that is compatible with your source and target system versions. This will help you avoid any known issues or bugs and benefit from any new features or improvements. You can find the latest version of SUM with DMO on the SAP Support Portal at http://support.sap.com/sltoolset.
- Monitor the migration process: You should always monitor the migration process using SUM with DMO and check for any errors or warnings that might occur. You can use the SUM user interface or the log files to monitor the migration process. You can also use some tools from SAP or third-party vendors to monitor the performance and resource consumption of your source and target systems.
- Follow the SAP documentation and best practices: You should always follow the SAP documentation and best practices for using SUM with DMO for SAP BW/4HANA migration. You can find the relevant documentation and best practices on the SAP Help Portal at https://help.sap.com/viewer/p/SAP_BW4HANA.
SUM with DMO is a powerful and efficient tool that can help you migrate your SAP BW system to SAP BW/4HANA and to SAP HANA database in one step. It can help you reduce complexity, downtime, and risk for your migration project. However, you need to prepare well and follow some guidelines to use SUM with DMO effectively and successfully.
If you want to learn more about SUM with DMO and how to use it for SAP BW/4HANA migration, you can visit these links:
- Database Migration Option (DMO) – SAP
- Database Migration Option: Target Database SAP HANA – SAP Online Help
- SAP First Guidance – DMO for BW on HANA 1.0 V1.82 – November 2021
- SAP First Guidance – Using the DMO Option to Migrate BW on HANA V1.82 …
Disclaimer: This content is generated by AI.