Login to the AWS Management Console and navigate to ‘Relational Database Service’ dashboard. Identify the RDS cluster that you would like to modify.
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Select the instance and choose ‘Modify’.
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In the next window, Change the instance type by dropping down on the ‘DB Instance Class’.
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I’m changing the instance type from db.t2.small to db.t2.medium.
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Scroll to the end of the page and choose ‘Continue’. On the next window, select if you would like to ‘Apply change immediately’ or ‘during next maintenance window’ and choose ‘ Modify db instance’.
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The status of Instance changes to ‘Modifying’ while the change is being made and becomes ‘Available’ once the instance type is changed.
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As shown in the below image, size is the new value – db.t2.medium and status is ‘Available’.
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