Real-Time Disaster Recovery

To prevent service unavailability caused by regional faults, DRS provides disaster recovery to ensure service continuity. The following table lists the databases and versions supported by real-time DR. For more information about real-time DR, see Real-Time Disaster Recovery.

Self-managed databases (for example, MySQL) include on-premises databases and the databases created on ECSs. RDS for MySQL refers to the MySQL databases created using Huawei Cloud RDS.

Some functions are in restricted use. To use them, submit a service ticket.

The destination database version must be the same as or later than the source database version.

MySQL Serving as the Source in DR

**Table 1** Database information
Service DB Engine	Service DB Type and Version	DR DB Type and Version
MySQL	Self-managed MySQL Versions 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.6, 5.7, and 8.0	RDS for MySQL All versions
		TaurusDB Compatible with MySQL 8.0
	RDS for MySQL All versions	RDS for MySQL All versions
		Self-managed MySQL Versions 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.6, 5.7, and 8.0
		TaurusDB Compatible with MySQL 8.0

DDM Serving as the Source in DR

**Table 2** Database information
Service DB Engine	Service DB Type and Version	DR DB Type and Version
DDM	DDM	DDM

TaurusDB Serving as the Source in DR

Service DB Engine	Service DB Type and Version	DR DB Type and Version
TaurusDB	TaurusDB Compatible with MySQL 8.0	TaurusDB Compatible with MySQL 8.0

Service DB Engine

Service DB Type and Version

DR DB Type and Version

TaurusDB

Compatible with MySQL 8.0

TaurusDB

Compatible with MySQL 8.0

Parent topic: Supported Databases

Previous topic: Data Subscription

Next topic: Workload Replay

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