Direct-attached hard disk system, hard disk daughter board, and server

Abstract

The present application relates to the technical field of servers, and specifically discloses a direct-attached hard disk system, a hard disk daughter board, and a server. By designing hard disk daughter boards and a backplane board that are detachably connected, the hard disk daughter boards are detachably connected to the backplane board by means of first hard disk state signal connectors, upstream data interfaces of hard disk connectors on the hard disk daughter boards are directly connected to a server motherboard by means of high-speed signal lines, downstream data interfaces of the hard disk connectors are connected to hard disks, and hard disk state signals and power supply signals of the hard disk connectors are connected to a backplane controller of the backplane board by means of the first hard disk state signal connectors. Compared with conventional direct-attached hard disk backplanes, a universal backplane board can achieve cross-generation reuse, and there is only a need to add corresponding hard disk daughter boards on the basis of the number and types of hard disks; moreover, the high-speed signal link is shortened, the difficulty of impedance design is reduced, heat dissipation is facilitated, and noise and power consumption of the entire machine are reduced.

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