Method for implementing backplane lighting for multiple NVMe hard disks

A method for lighting a backplane lamp of a plurality of Non-Volatile Memory Express (NVMe) hard disks, wherein a backplane is connected to a motherboard, a group of Virtual Pin Port (VPP) signal wires are connected to each controller of the motherboard, the VPP signal wires are connected to the backplane via a connector sideband channel of each port, and wherein the method comprises:

• transmitting a VPP address to the backplane in a cyclic manner by the controller, and analyzing the address transmitted by the controller by a programmable logic device of the backplane after a data stream transmitted by the controller is received;
• transmitting, by the controller, hard disk lamp lighting information of a corresponding disk position to the programmable logic device of the backplane, if a VPP address analyzed by the backplane is the same as the VPP address transmitted by the controller;
• and
• performing logical conversion, by the programmable logic device of the backplane, on the hard disk lamp lighting information transmitted by the controller, to convert a serial data stream on the VPP signal wires into a parallel signal, lighting a backplane lamp at a corresponding port, and uploading information of a position of the hard disk monitored by the backplane to the controller.