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Updated on 2023-10-17 GMT+08:00
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Migrating the Database to HUAWEI CLOUD

Heterogeneous migration may involve replication operations, such as data table splitting and ABAP code modification. These operations require SAP system and database management experience. You may spend more time adjusting the system and planning the migration. Do not change the database type. The following solutions are available:

  • Method 1: Use SAP System Copy that is a standard migration solution provided by SAP. If you have any questions during the migration, contact SAP technical support. For details, see Method 1: Using SAP System Copy (R3load).
  • Method 2: Use a database native tool. Different databases have their own heterogeneous migration solutions, for example, offline data Export/Import.

Method 1: Using SAP System Copy (R3load)

SAP System Copy is a standard migration solution supported by SAP's technical personnel. It can migrate data from your database to the HANA database (System Copy - Target Database SAP HANA) and other databases (System Copy - Target Databases Other than SAP HANA).

When using System Copy, stop the services before you start the export. The service interruption duration depends on the database size. Importing and exporting of over 1 TB data takes a long time, which has a great impact on services. Figure 1 shows the procedure.

Figure 1 System migration

The procedure is described as follows:

  1. On HUAWEI CLOUD, create the a subnet, configure security group policies, and build the target system, including the database and application servers.
  2. Stop the source system services. Run the SWPM tool on the source server and use System Copy to export data. For details, see SAP System Copy.
  3. Upload the exported data to the file system of the target system.
  4. Run the SWPM tool in the target system and use System Copy to import data.
  5. Verify the system availability and data integrity.

Method 2: Using the native migration function of your Products and installation programs required for Q Replication and SQL Replication on Linux, UNIX, and Windows - IBM DocumentationProducts and installation programs required for Q Replication and SQL Replication on Linux, UNIX, and Windows - IBM Documentationdatabase.

Databases have their own heterogeneous migration solutions. For example, the Oracle database has Oracle GoldenGate, and the DB2 has Q Replication, and the offline data Export/Import function. However, heterogeneous migration requires more careful planning and design. Consultants who are familiar with database migration tools are needed for implementing the migration.