AWS Cloud TutorialLesson 50Free preview
AWS DMS
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Summary
AWS Database Migration Service (DMS) allows you to move databases to AWS with very minimal downtime. The service supports sources and targets with the same (homogeneous) or different (heterogeneous) database types, and can run continuous replication throughout the migration process. DMS becomes a top choice when applications must stay running while data is moved.
Key points
- DMS runs a replication task that copies data from source to target
- Sources and targets can use different database engines.
- Change data during migration is captured using the CDC (Change Data Capture) technique.
- For heterogeneous migration, the schemes are converted with AWS Schema Conversion Tool (SCT)
- There are several types of instance replication available: standard, memory optimized, and compute optimized
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