A financial company has allocated an Amazon RDS MariaDB DB instance with large storage capacity to accommodate migration efforts. Post-migration, the company purged unwanted data from the instance. The company now want to downsize storage to save money. The solution must have the least impact on production and near-zero downtime. Which solution would meet these requirements?
A. Create a snapshot of the old databases and restore the snapshot with the required storage
B. Create a new RDS DB instance with the required storage and move the databases from the old instances to the new instance using AWS DMS
C. Create a new database using native backup and restore
D. Create a new read replica and make it the primary by terminating the existing primary
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B is correct Answer
https://aws.amazon.com/premiumsupport/knowledge-center/rds-db-storage-size/