Hard disk backboard communication device, communication method and server

Abstract

The invention provides a hard disk backboard communication device, a communication method and a server. The device comprises a plurality of hard disk backboards and a mainboard, each hard disk backboard at least comprises a first hard disk high-speed signal connector; the mainboard comprises a plurality of first mainboard high-speed signal connectors, an expansion chip and a conversion chip; the number of the first mainboard high-speed signal connectors is greater than or equal to the total number of the first hard disk high-speed signal connectors, and each first mainboard high-speed signal connector integrates a hard disk in-place signal and an I2C signal; and each first mainboard high-speed signal connector is in communication connection with the input end of the expansion chip through a hard disk in-place signal and is also in communication connection with the sub-channel of the conversion chip through an I2C signal. Based on the device, the invention further provides a hard disk backboard communication method and a server. According to the invention, sideband signals are integrated in the high-speed signal connector on the mainboard, so that the number of connectors on the mainboard and the backboard is reduced, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of hard disk backplane communication, and in particular relates to a hard disk backplane communication device, a communication method and a server. Background technique [0002] The hard disk backplane is a necessary board card on the server, and a certain number of hard disk interfaces can be extended externally. Field replaceable units, programmable logic chips, temperature sensors and other devices are generally placed on the hard disk backplane. Baseboard Management Controller. It communicates with these devices through the I2C bus, and is used to obtain the type information of the hard disk backplane, the presence of the hard disk, and the temperature information of the hard disk area. In order to support a larger number of hard disks, a server usually places multiple backplanes (for example, in order to achieve 24 hard disks, three 8-port backplanes or six 4-port backplanes can be used), and each bac...

AI Technical Summary

Problems solved by technology

In the prior art, the number of sideband signal connectors on the motherboard should be consistent with the maximum number of backplanes supported by the server. If the server supports a large number of backplanes, more sideband signal connectors need to be reserved on the motherboard. , takes up valuable PCB layout space; and the power supply cables, high-speed signal cables, and sideband signal cables between the main board and the hard disk backplane make the system cable management more complicated; and if the sideband signal Connecting in sequence will cause the serial number of the hard disk backplane to be wrong

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