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Data Transmission Service:Cross-border and cross-region instances

Last Updated:Nov 25, 2024

This topic describes how to determine the type of a Data Transmission Service (DTS) instance based on the regions in which the source and destination databases reside.

Background information

DTS regions can be divided into regions in China and regions outside China.

  • Regions in China include the Chinese mainland, China (Hong Kong), China (Macao), and China (Taiwan).

  • Regions outside China are regions other than the Chinese mainland, China (Hong Kong), China (Macao), and China (Taiwan).

Instance types

The type of a DTS instance is determined by the regions in which the source and destination databases reside. The following table describes the types of DTS instances.

Important

If you want to configure a cross-border or cross-region data migration instance, the source and destination databases must meet the following requirements:

  • If the Access Method parameter is set to Alibaba Cloud Instance for the source database, the source database must have a public endpoint.

  • If the Access Method parameter is not set to Alibaba Cloud Instance for the source database, the destination database must have a public endpoint.

Region in which the source database resides

Region in which the destination database resides

Instance type

Region in the Chinese mainland

Region in the Chinese mainland (same as the source region)

Same-region

Region in the Chinese mainland (different from the source region)

Cross-region

China (Hong Kong), China (Macao), China (Taiwan), or a region outside China

Cross-border

China (Hong Kong)

Region in the Chinese mainland

Cross-border

China (Hong Kong)

Same-region

China (Macao), China (Taiwan), or a region outside China

Cross-region

China (Macao)

Region in the Chinese mainland

Cross-border

China (Macao)

Same-region

China (Hong Kong), China (Taiwan), or a region outside China

Cross-region

China (Taiwan)

Region in the Chinese mainland

Cross-border

China (Taiwan)

Same-region

China (Hong Kong), China (Macao), or a region outside China

Cross-region

Region outside China

Region in the Chinese mainland

Cross-border

Region outside China (same as the source region)

Same-region

China (Hong Kong), China (Macao), China (Taiwan), or a region outside China (different from the source region)

Cross-region

References