Overview

Scenarios

Traditional databases are expensive and difficult to maintain. These deficiencies are some of the driving forces behind cloud migration. This section describes how to use DRS to migrate MySQL shards and tables to a DDM instance on Huawei Cloud.

Solution Architecture

In this example, DDS shards and tables are associated with two MySQL instances at the source side, and a DDM instance is associated with two RDS MySQL instances at the destination side. Source data is migrated to the destination through a DRS instance, and source data is continuously synchronized before the incremental synchronization task is manually stopped. Figure 1 shows the overall deployment architecture.

Figure 1 Solution architecture

Advantages

• The full+incremental migration mode is used to ensure that services are not interrupted and data is not lost during data migration.
• DRS saves traditional database administrator (DBA) costs and hardware costs, and supports on-demand pricing.
• A migration task can be set up within minutes.