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Why?
- Save money
- Reserve capacity
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Reserved Instances at AWS provide a significant discount (up to 75%) compared to On-Demand pricing and can provide a capacity reservation when used in a specific Availability Zone. |
Types
Reserved Instances
- Standard Reserved Instances
- Apply to a single instance family, platform, scope, and tenancy over a term
- One or three year term
- Can reserve capacity (locked into one availability zone, "zonal RI") or be regional (can launch in any AZ within the region, "regional RI")
- Associated with one region for duration of term
- Greatest discount
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- No up front cost purchase type
- Regional
- Standard RI (assuming your needs won't change that much)