Cost optimizing with capacity reservations
DynamoDB reserved capacity is a cost-saving option that allows users to commit to a predefined amount of provisioned throughput for a fixed duration, typically one or three years. By reserving capacity upfront, users can benefit from significant cost savings compared to on-demand or public pricing of provisioned capacity modes.
Reserved capacity can be considered primarily as a billing feature, as its main impact is on the billing of an AWS account’s regional provisioned capacity for a given month. It does not affect a provisioned mode table’s performance, limits, or scaling behavior.
Reserved capacity is a valuable choice for minimizing DynamoDB costs in workloads characterized by consistent usage and predictable growth. Similar to the pricing of provisioned capacity, reserved capacity incurs charges regardless of utilization. This means that careful consideration should be given before purchasing long-term reserved capacity...
