Best Practices Summary

This document describes how to use Data Replication Service (DRS) to quickly migrate or synchronize databases in typical application scenarios.

**Table 1** DRS best practices
Function	Source DB Type	Destination DB	Cases
Real-Time Migration	MySQL databases on other clouds	Huawei Cloud GaussDB(for MySQL) instances	From Other Cloud MySQL to GaussDB(for MySQL)
	MongoDB databases on other clouds	Huawei Cloud DDS	From Other Cloud MongoDB to DDS
	MongoDB databases on ECSs	Huawei Cloud DDS	From MongoDB on ECS to DDS
	On-premises MySQL databases	Huawei Cloud RDS MySQL instances	From On-Premises MySQL to RDS MySQL
	On-premises MongoDB databases	Huawei Cloud DDS	From On-Premises MongoDB to DDS
Backup Migration	On-premises Microsoft SQL Server databases	Huawei Cloud RDS SQL Server instances	Migrating Microsoft SQL Server Backup Data to RDS SQL Server DB Instance
Real-Time Synchronization	PostgreSQL databases on other clouds	Huawei Cloud RDS PostgreSQL instances	From Other Cloud PostgreSQL to RDS PostgreSQL
	PostgreSQL databases on ECSs		From PostgreSQL on ECS to RDS PostgreSQL
	On-premises PostgreSQL databases		From On-Premises PostgreSQL to RDS PostgreSQL
	RDS for MySQL instances	DMS for Kafka	From RDS MySQL to Kafka

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