Backboard and mainboard connection port identification system and method, and server

Abstract

The invention discloses a backboard and mainboard connection port identification system and method and a server. The system comprises a first controller of a mainboard, a serial-to-parallel conversion chip and a plurality of downlink ports, the first controller sends PWM signals used for distinguishing the downlink ports to the serial-to-parallel conversion chip through a serial bus, and each parallel IO port of the serial-to-parallel conversion chip is connected with the corresponding downlink port through a single signal line. The serial-to-parallel conversion chip distributes the PWM signal to a downlink port connected with each parallel IO port according to the frequency; the device comprises a back plate, uplink ports of the back plate and a second controller, one end of each uplink port is connected with a certain downlink port through a cable, the other end of each uplink port is connected with an IO port of the corresponding second controller through a single signal line, and the second controller is configured to be used for analyzing PWM signals received by the uplink ports so as to determine the corresponding relation between each uplink port and the corresponding downlink port. According to the scheme, expansion of more requirements is achieved, and IO resources of the backboard are saved.

Description

technical field [0001] The invention relates to the field of servers, in particular to a system, method and server for identifying a connection port between a backplane and a mainboard. Background technique [0002] With the development of server scalability, the design of server motherboards tends to be modularized to achieve the expansion of different business boards. When facing different business needs, it can be matched with various daughter cards such as hard disk backplanes. The motherboard will set up more downstream ports to extend to each hard disk backplane through cables. The backplane needs to determine which downstream port of the main board each upstream port of the board is connected to through the identification information of the upstream port, and establish a one-to-one correspondence between the backplane hard disk and the downstream port of the main board, so as to realize the backplane management. Due to the increase in various configuration requiremen...

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to aim at the identification of the backplane to the mainboard port connected, and to improve the problem of the tight number of pins of the server mainboard and the backplane interconnection connector. The present invention provides a backplane and mainboard connection port identification system, method and server

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