Can DRS Migrate RDS Primary/Standby Instances?
Yes. DRS provides high availability and can migrate a single RDS instance or RDS primary/standby instances. DRS can automatically rebuild the databases connection after a short interruption and resumes data transfer from the point when the connection was lost to ensure the continuity and consistency of data synchronization.
If the HA design of the source database meets the requirements of floating IP address connections and RPO is 0 during a switchover, DRS supports migration of primary/standby instances without manual intervention.
- The floating IP address is used and RPO may be 0 during a switchover. In this situation, the database can be connected, but DRS will identify data interruption (if data loss occurs during the switchover) and display a message indicating that the task fails. You can only reset the migration task.
- A fixed IP address is used and RPO is 0 during the switchover. In this situation, the migration is supported only when the instance is running properly.
- The floating IP address is used and zero RPO cannot be ensured during a switchover. In this situation, the database can be connected, but DRS will identify data interruption (if data loss occurs during the switchover) and display a message indicating that the task fails. You can only reset the migration task.
If the destination is primary/standby instances, DRS can ensure that the source data is completely migrated to the destination database. However, the switchover of the destination database cannot ensure zero RPO. As a result, data in the destination database may be incomplete.
Product Consulting FAQs
- What Are Regions and AZs?
- What Is DRS?
- Can DRS Migrate RDS Primary/Standby Instances?
- What Constraints Does DRS Have for a Source Database?
- What Requirements Does DRS Have for a Destination Database?
- Does DRS Use Concurrency?
- Dose DRS Use Data Compression?
- Does DRS Support Migration Between the Public Cloud and the Dedicated Cloud?
- What Is the Quota?
- Does DRS Support Migration from DB2 for LUW to PostgreSQL?
- Can Microsoft SQL Server Database Synchronize Data with Local Databases in Real Time?
- Does DRS Support Data Replication in a Specified Time Period?
- Does DRS Support Resumable Uploads?
- What Is Single-Active/Dual-Active Disaster Recovery?
- What Are the Differences Between Real-Time Migration, Real-Time DR, and Real-Time Synchronization?
- How Do I Solve the Table Bloat Issue?
- How Do I Select RDS Read Replicas on the DRS Console?
- How Does DRS Affect the Source and Destination Databases?
- Do I Need to Stop Services Running on the Source Database?
- What Is an SMN Topic?
- What Are the Differences Between Primary/Standby and Single-Node Instances for DRS Synchronization Tasks?
- Can DRS Migrates Table Structures Only?
- How Do I Migrate Accounts in MySQL Migration, Synchronization, and DR Tasks and Can I Change Passwords?
- What Factors Affect the DRS Task Speed and How Do I Estimate the Time Required?
- Can I Modify Objects in a DRS Task?
- Does DRS Support Data Synchronization Between Different Databases of the Same DB Instance?
- Which Operations on the Source or Destination Database Affect the DRS Task Status?
- What Are Differences Between Data Subscription and Synchronization from MySQL to Kafka?
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