Patent attributes
Methods and apparatus for managing user-defined capacity reservation pools for network-accessible resources are disclosed. A system includes a plurality of resource instances of a provider network, and a resource manager. In response to a pool assignment request from a client specifying a pool identifier of a reserved instance pool created on behalf of the client, the resource manager assigns one or more resource instance reservations of the client to a pool with the first pool identifier. In response to an instance activation request from the client, the resource manager identifies a particular pool created on behalf of the client from which to select a particular resource instance reservation for activation, and activates the particular resource instance.