Move capacity between Capacity Reservations
If you have more than one Capacity Reservation, you can move available capacity from one reservation to another. For example, if you need additional capacity in a Capacity Reservation with growing usage and have another Capacity Reservation with available capacity, then you can reallocate capacity between the two reservations.
The destination Capacity Reservation must match the following properties of the source Capacity Reservation:
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Instance type
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Platform
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Availability Zone
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Tenancy
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Placement group
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End time
The destination Capacity Reservation instance eligibility (open or targeted) and tags don't have to match the source
Capacity Reservation. The configuration of the source and destination Capacity Reservation remains the same, except for the reduced available capacity in the source reservation
and the increased available capacity in the destination reservation.
If all of the available capacity is moved from the source Capacity Reservation and there isn't any capacity being used, the Capacity Reservation will be automatically canceled. If you try to move more than the available capacity in source Capacity Reservation, you will receive an error.
Note
Moving available capacity of Capacity Blocks isn't supported.
To move available capacity from a source Capacity Reservation to a destination Capacity Reservation, you can use the Amazon EC2 console or the AWS CLI.
