Abstract: Embodiments disclosed herein include electronic packages for optical to electrical switching. In an embodiment, an electronic package comprises a first package substrate and a second package substrate attached to the first package substrate. In an embodiment, a die is attached to the second package substrate. In an embodiment, a plurality of photonic engines are attached to a first surface and a second surface of the first package substrate. In an embodiment, the plurality of photonic engines are communicatively coupled to the die through the first package substrate and the second package substrate.

Abstract: A data transferring method, apparatus and storage system is provided. The method includes: acquiring, by an access device, data of a first storage device; transferring, by the access device, the acquired data of the first storage device to a second storage device; performing, by the access device upon receiving a service request during transferring of the data, the service request carrying at least parameter name and operation method of an object to be accessed, corresponding service operations on the first and/or second storage device according to the parameter name and the operation method of the object to be accessed. Data transferring between the first and the second storage device and normal processing of service for outside is achieved through the access device, and thereby step of adding underlayer protocols for achieving access between storage devices is not needed and problem of requiring multiple developments can be avoided.