Making Amazon S3 a Target for DMS Amazon Web Service

Before diving into the various aspects of AWS DMS CDC S3 a quick look at each component separately is in order.

The Amazon Web Service Database Migration Service or AWS DMS is a cloud-based platform that facilitates easy migration of data warehouses, relational databases, NoSQL databases, on-premises systems to the cloud, and one cloud provider to another.

CDC or Change Data Capture is the process of recording modifications made in the latest production data or metadata which is then stored in a separate data repository replication software.

Amazon S3 or Simple Storage Service is ideal for users, who, among other things want to work with limited storage operations and quickly scale up to tens of terabytes of data if required.

The advantage of AWS DMS CDC S3 is that the replication activity can be done both within and outside the region with S3 having the capability to go through billions of objects of Batch Operations. Users can migrate data using AWS DMS CDC to S3 from any supported database sources when S3 is the target in an AWS DMS activity. This is applicable for both full load or when Change data capture CDC data is written in a comma-separated format by default. 


Before going through the AWS DMS CDC to S3 activity, a few preconditions have to be met.

The AWS account used for the migration must have an IAM role with write and delete access to the target S3 bucket. The role must have tagging access to allow any objects written to the target bucket to be tagged through AWS DMS CDC to S3.

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