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Via https://aws.amazon.com/rds/faqs/
Q: Do reserved instances include a capacity reservation?
Amazon RDS reserved instances are purchased for a Region rather than for a specific Availability Zone. As RIs are not specific to an Availability Zone, they are not capacity reservations. This means that even if capacity is limited in one Availability Zone, reservations can still be purchased in the Region and the discount will apply to matching usage in any Availability Zone within that Region.
已回答 4 年前
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Yes ODCR (On-Demand Capacity Reservation) capability is not available on RDS today.
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I did not come across any documentation indicating RI prioritized over On-Demand. The value of RI is in discounts
已回答 2 年前
相關內容
- 已提問 6 個月前
- AWS 官方已更新 2 年前
- AWS 官方已更新 2 年前
To clarify - RDS RIs do not reserve actual capacity, and they just provide a billing discount.