A CloudOps engineer manages a production RDS database that was provisioned as part of a CloudFormation stack. The company has a policy requiring that database data must never be lost when infrastructure is decommissioned or when stacks are updated in ways that would replace the database. During a recent stack update, a change to the DB instance identifier caused CloudFormation to replace the resource, and the original data was deleted. What should the engineer configure to ensure the database and its data are preserved even if the resource is removed or replaced?