Amazon Cloud : AWS Linux Server Tips, Tricks & Tutorials

Amazon EC2 Reserved Instances (RI) provide a significant discount (up to 75%) compared to On-Demand pricing and provide a capacity reservation when used in a specific Availability Zone.   Why Should I Use RIs? Save Money and Maintain Flexibility RIs provide you with a significant discount (up to 75%) compared to On-Demand instance pricing. You have the flexibility to change families, OS types, and tenancies while benefitting from RI pricing when you use Convertible RIs. Reserve Capacity RIs can provide a capacity reservation, offering additional confidence in your ability to launch the number of instances you have reserved when you need them. How do RIs Work? EC2 RIs provide a discounted hourly rate and an optional capacity reservation for EC2 instances. AWS Billing automatically applies your RI’s discounted rate when attributes of EC2 instance usage match attributes of an active RI. If an Availability Zone is specified, EC2 reserves capacity m