A method, system, device and medium for detecting cable full-link connectivity

Abstract

The invention discloses a method, system, device and storage medium for detecting the connectivity of the entire link of the cable. The method includes: setting first resistors with the same resistance value at both ends of each cable connecting the main board and the sub-board, And connect one end of the first resistor to the cable detection signal, and the other end to ground; connect the second resistor in series on the cable detection signal of the main board, and connect the third resistor of the same resistance value in series on the cable detection signal of each sub-board; Based on the switch switching chip, the second resistor is connected to each cable in turn, and whether the cable detection signal of each cable is normal; and in response to the cable detection signal of each cable being normal, determine that the cable is all The connectivity of the link is normal. The invention detects the connectivity of the whole link of the cable by using the low-cost resistor, which not only reduces the cost, but also saves precious I2C resources, and can locate the abnormal position according to the voltage value.

Description

A method, system, device and medium for detecting full-link connectivity of cables technical field [0001] The present invention relates to the field of cables, and more particularly, to a method and system for detecting the connectivity of a full link of a cable. systems, computer equipment and readable media. Background technique In the field of server technology, the scale of data such as storage, computing, and communication continues to expand, and in traditional x86 server racks In order to facilitate the expansion of storage and computing resources, the hard disk backplane and GPU (Graphics Processing) are often connected through cables. Unit, graphics processor) board, etc., in order to match different configurations according to different needs, play the role of flexible configuration and easy expansion use. For example, in the whole cabinet server, add storage nodes for extended storage functions; add GPU nodes for extended computing functions Wait. The ...

AI Technical Summary

Problems solved by technology

[0004] The first method above can only detect whether the cable connector is plugged in. Usually, only one of the two interconnected boards has a BMC. It is difficult to detect the end of the board without a BMC, and it cannot detect the full link of the cable. , it is impossible to judge whether the cable itself has a connectivity problem

The second method needs to integrate an EEPROM chip inside the cable, and each cable needs a separate I2C channel, which wastes precious I2C resources, increases the cost of the cable, and is less cost-effective.

The above two methods cannot detect whether the cable impedance is good. If there are foreign objects at the connection, or there are accidents such as connector aging or cable damage, the cable impedance is abnormally high. Although it can still be conducted, the system stability will be affected. Deterioration, it is difficult to locate the cause after a problem occurs

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