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A company needs to transfer an Amazon Aurora MySQL DB cluster from one AWS account to another within the same AWS Region, where both accounts are part of the same AWS Organizations. To ensure minimal disruption to database services, the company must implement a migration strategy that allows for a smooth DNS cutover to the new database. Which two migration strategies would effectively meet this requirement?
A company needs to transfer an Amazon Aurora MySQL DB cluster from one AWS account to another within the same AWS Region, where both accounts are part of the same AWS Organizations. To ensure minimal disruption to database services, the company must implement a migration strategy that allows for a smooth DNS cutover to the new database. Which two migration strategies would effectively meet this requirement?
Explanation:
The correct answers are A and B. Option A involves taking a snapshot of the existing Aurora database, sharing it with the new AWS account, and then creating a new Aurora DB cluster from the snapshot. This method ensures that the data is effectively transferred to the new account while minimizing downtime. Option B suggests creating a new Aurora DB cluster in the new AWS account and using AWS Database Migration Service (AWS DMS) to migrate data between the two clusters. AWS DMS supports continuous data replication, which helps keep the destination database updated with minimal service interruption and prepares it for the DNS cutover.