Title

AWS re:Invent 2023 - Dive deep into different AWS DMS migration options (DAT328)

Summary

The session is a 300-level technical course focused on AWS Database Migration Service (DMS) and its capabilities.
The speaker, John, leads the product for AWS DMS, and Ryan leads the technical field community.
The session includes a demo and aims to simplify the migration process for attendees.
DMS is essentially a replication service, despite its name suggesting migration.
Over 1.2 million databases have been migrated using DMS, including Amazon's migration from Oracle to cloud-native and open-source systems.
DMS Fleet Advisor helps with large fleets of databases, recommending AWS migration targets based on infrastructure and performance characteristics.
DMS Schema Conversion Tool (SCT) and DMS Schema Conversion (DMSSC) help convert schemas from one database type to another.
DMS offers logical replication instances, serverless options, and homogenous migrations using native tools.
Pre-migration assessments and data validation are important steps to ensure successful migrations.
The session also covers common challenges and new features, including Glue Catalog integration, data validation for S3, and support for new database versions and types.

AWS DMS is a powerful tool for both migration and replication, and it's important not to be misled by the name.
The migration process can be complex, but AWS provides tools like Fleet Advisor and Schema Conversion to simplify the process.
Serverless options in DMS help with scaling and resource management, removing the need for users to predict the required instance size.
Homogenous migrations leverage native database tools, which can be more efficient for migrations within the same database type.
Pre-migration assessments and data validation are critical for avoiding potential issues during the migration process.
Common challenges in migrations include instance sizing, supported capabilities, network bandwidth, large object handling, parallelization, and operational excellence.
AWS continues to invest in DMS, as evidenced by the new features and integrations, such as Glue Catalog integration and support for new database versions.
The quote from JP Morgan emphasizes the importance of taking action to move from the current state to a desired future state, which is relevant to the context of data migrations.