We have 2 reserved c3.xlarge instance in our project but have total 3 launched c3.xlarge instance.
How to check which 2 instances are reserved out of 3. I checked details of all 3 instances, but nothing is mentioned.
An Amazon Reserved Instance (RI) is a billing discount that allows you to save on your Amazon EC2 usage costs. When you purchase a Reserved Instance, you can set attributes such as instance type, platform, tenancy, Region, or Availability Zone (optional).
AWS Cost Explorer helps you visualize, understand, and manage your AWS costs and usage over time.
Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/ . In the navigation pane, choose Instances. In the top right corner, choose the settings icon ( ), and under Attribute columns, select Instance lifecycle. For Spot Instances, Instance lifecycle is spot .
Reserved Instances are available in 3 options – All up-front (AURI), partial up-front (PURI) or no upfront payments (NURI). When you buy Reserved Instances, the larger the upfront payment, the greater the discount.
Reserved or not reserved is just a billing convenience. There is no concept of a particular instance being reserved or not.
So for example if you have two instances and have purchased on reserved instance and one is 'on demand', you can delete either one of them, and one of them is still reserved.
To check your reserved instances:
Here you can see all your available reserved instances if available, else "You do not have any Reserved Instances." is displayed.
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