1. A data storage device comprising: a memory system, connected to a host controller and a drive controller; the host controller configured to obtain a reference of an object stored in the memory system for writing to a storage media controlled by the drive controller, and transfer the reference of the object and a storage command to the drive controller to write at least a portion of the object to the storage media; the drive controller configured to receive and process the reference of the object and the storage command to control the storage media to write at least the portion of the object from the memory system to the storage media.