Storage devices including a controller, a first memory coupled to the controller, and a second memory coupled to the controller, wherein the controller is configured to generate a linked list in response to a received access command, the linked list comprising one or more first entries corresponding to user data to be received from or outputted to an external device and one or more second entries for metadata to be generated by the storage device, and having a defined order of the first entries and the second entries corresponding to a defined data structure of a page of data of the first memory.