Reserved Instances
Learn about the various types of Reserved Instances and their benefits and limitations.
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One of the more complex decisions an organization will make is how to best structure their resource purchasing. Organizations that pay full price On Demand are not at all maximizing their AWS spending. Reserved Instances are exactly what they sound like—we agree to a contract price for a fixed duration. We end up paying for the Reserved Instances (RIs) regardless of whether we use them, so it's best to only use them when we know we’ll have a workload running full-time for at least a year. Additionally, we can choose to pay a lump sum all up-front, pay partially upfront with a smaller monthly payment, or pay entirely with monthly payments.
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