Inside AWS Organizations, a corporation has several AWS accounts and needs to extend the Amazon EC2 Reserved instances advantage to a single account only. Which steps should be taken?
Answer (2)
To extend the Amazon EC2 Reserved Instances (RIs) benefit to a single AWS account within AWS Organizations, follow these steps:
Understand Reserved Instance Benefits: Amazon EC2 Reserved Instances provide a pricing discount compared to On-Demand instances. The discount is application-specific, usually to accounts within an organization.
Use AWS Organizations: Reserved Instances benefits are typically applied across an organization by default. If you want the benefit to apply to one account only, you'll need to modify the default behavior.
Access AWS Organizations: Log into the AWS Management Console of the AWS Organizations management account (root) or an account with permission to manage billing settings.
Navigate to Billing Preferences: From the AWS Management Console:
Access the 'Billing and Cost Management' console.
Choose 'Billing preferences' in the navigation pane.
Turn Off Reserved Instance Sharing: By default, RI benefits (including regional RI discounts) are shared across all accounts in an organization. To restrict the benefit to a single account, disable RI benefit sharing:
Find the option that says 'Apply Reserved Instances benefits to All AWS Accounts in an Organization' and turn it off.
Save changes, which will limit the RI benefits to the account purchasing them only.
Verify Changes and Implementation: Check through billing reports and cost management tools to ensure that the modifications are in effect, as they should reflect in the cost allocation reports.
By changing these settings, you ensure that the Reserved Instances benefits apply only to the desired account within AWS Organizations, instead of the default distribution across all linked accounts.
To limit Amazon EC2 Reserved Instance benefits to one AWS account in an Organization, you need to turn off the sharing option in the Billing preferences section of the AWS Management Console. This will allow the benefits to apply only to the account that purchased the Reserved Instances. Finally, confirm the changes through billing reports and cost management tools.
;
