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AWS Certified Solutions Architect - Professional · AWS
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Using Replication Agent is unreasonable because it's not designed to migrate such small workload. Using DMS is much more reliable and the data sync is automated, it's a set-and-forget operation which is obviously less operational compare to other options.
For lift-and-shift disaster recovery of on-premises workloads (including databases) to AWS with minimal operational overhead, use AWS Elastic Disaster Recovery (AWS DRS). Install the AWS Replication Agent, configure launch settings, and AWS keeps a low-cost replica up to date. At failover, instances launch quickly in AWS without manual rebuilds. Avoid DMS or Storage Gateway unless you only need DB sync or file-level DR.
Poorly worded question. AWS DMS makes sense if we were just migrating the Mysql Database. Since we are migrating the database AND application - we use AWS Replication Agent to migrate the entire server.