What Are the Differences Between Real-Time Migration, Real-Time DR, and Real-Time Synchronization?
Item |
Real-Time Migration |
Real-Time Synchronization |
Real-Time DR |
---|---|---|---|
Scenario |
Migration can be performed between different cloud platforms, from on-premises databases to cloud databases, or on cloud databases across regions. |
Real-time analysis, report system, and data warehouse environment |
You can perform disaster recovery between on-premises databases and cloud databases, or between databases across cloud platforms. |
Characteristics |
|
|
|
Supported databases |
For details, see Migration Overview. |
For details, see Synchronization Overview. |
For details, see DR Overview. |
Functions and features |
Users can be migrated. |
Users cannot be migrated. |
By default, all users are migrated. You cannot select the users to be migrated. |
Parameters can be compared. |
Parameters cannot be compared. |
Parameters can be compared. |
|
Migration objects cannot be edited in the incremental phase. |
Synchronization objects can be edited in the incremental phase, and added or deleted dynamically. |
Disaster recovery objects cannot be edited in the incremental phase. |
|
Object name mapping is not supported. |
Object names mapped to the destination database can be changed, so the names of tables and databases in the source and destination databases can be different. |
Object name mapping is not supported. |
|
Data processing is not supported. |
Data processing is supported. You can add rules, such as data filtering and column processing, for selected objects. |
Data processing is not supported. |
|
Primary/Standby switchover is not supported. |
Primary/Standby switchover is not supported. |
Primary/Standby switchover is supported. |
|
Billing |
Only pay-per-use billing is supported. |
Both pay-per-use and yearly/monthly billing modes are supported. |
Both pay-per-use and yearly/monthly billing modes are supported. |
Remarks |
Different data flows support different functions and features. For details, see Precautions. |
Different data flows support different functions and features. For details, see Precautions. |
Different data flows support different functions and features. For details, see Precautions. |
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 During MySQL Migration?
- 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 Single-AZ and Dual-AZ DRS 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?
- Why Cannot Standby Read Replicas on Some Other Clouds Be Used as the Source Database?
- Does DRS Support Migration of Users Encrypted by the Caching_sha2_password Plugin?
- Why Is the Database Disk Usage Inconsistent Before and After Data Migration?
- What Is the Serialization Mode of Messages Sent by DRS to Kafka?
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