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- Convertible Reserved Instances
- They allow you to change the instance family and other parameters associated with a Reserved Instance at any time. For example, you can convert C3 RIs to C4 RIs to take advantage of a newer instance type, or convert C4 RIs to M4 RIs if your application turns out to need more memory.
- Can exchange a portion of remaining CRI to a different family
- Can merge two or more CRIs and obtain one for a larger instance
- Merged CRIs will have the expiry date of the RI that is furthest from the date of exchange
- Merging CRIs with different term lengths always produces a 3 year CRI
- One or three Three year term
- Can reserve capacity (locked into one availability zone) or be regional (can launch in any AZ within the region)
- Associated with one region for duration of term
- Slightly more expensive than Standard RI
- Note : You cannot convert your Convertible Reserved Instance for Convertible Reserved Instance(s) of a lesser total value.
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