Overview - ApsaraDB for Redis - Alibaba Cloud Documentation Center

ApsaraDB for Redis provides multiple data migration solutions by using Data Transmission Service (DTS) to meet your needs for data migration.

DTS

Alibaba Cloud DTS is a real-time data streaming service that provides the data synchronization, data migration, change tracking, data integration, and data processing features with stable and secure data transmission. DTS supports full data and incremental data migration with minimal downtime. This ensures service availability.

Table 1. The following table describes the availability of DTS to migrate data from or to a database that runs Redis.
Tool	Supported source database	Supported destination database	Supported instance architecture	Supported migration type
DTS (recommended)	Self-managed Redis databases that run Redis 2.8, 3.0, 3.2, 4.0, 5.0, or 6.0 ApsaraDB for Redis Community Edition instances that run Redis 4.0, 5.0, or 6.0 ApsaraDB for Redis Enhanced Edition (Tair) instances	ApsaraDB for Redis Community Edition instances that run Redis 4.0, 5.0, or 6.0 ApsaraDB for Redis Enhanced Edition (Tair) instances	Source database Standard master-replica Cluster Read/write splitting Destination database Standard master-replica Cluster Read/write splitting	Full data migration Incremental data migration Cross-account data migration

Required permissions

The permissions that are required by DTS vary based on migration scenarios. Before you configure data migration, you must obtain the required permissions on the source and destination databases based on the migration scenarios. The following table describes the required permissions.

Note For more information about how to create an account for an ApsaraDB for Redis instance and grant the required permissions to the account, see Create and manage database accounts.


Tool	Scenario	Permission on the source database	Permission on the destination database
DTS (recommended)	Migrate data from a self-managed Redis database to an ApsaraDB for Redis instance Migrate data between self-managed Redis databases	Permissions to run the SYNC or PSYNC command	Read and write permissions

Data migration solutions

Table 2.
Scenario	Tool	Solution
Migrate data from a self-managed Redis database to an ApsaraDB for Redis instance	DTS	Migrate data from a self-managed Redis database to an ApsaraDB for Redis instance
		Synchronize data from a Codis cluster hosted on an ECS instance to an ApsaraDB for Redis instance Note This solution uses the data synchronization feature of DTS to migrate data.
		Synchronize data from a Twemproxy Redis cluster hosted on an ECS instance to an ApsaraDB for Redis instance Note This solution uses the data synchronization feature of DTS to migrate data.
Migrate data between ApsaraDB for Redis instances	DTS	Configure one-way data synchronization between ApsaraDB for Redis instances Note This solution uses the data synchronization feature of DTS to migrate data.