A backboard capable of simultaneously supporting multiple hard disks

Abstract

The invention discloses a backboard capable of simultaneously supporting multiple hard disks. The backboard comprises an uplink connector, a downlink interconnection port, a main chip PSOC for managing different types of hard disks through a UBM backboard management scheme, and a GPIO expander. The uplink connector is connected with the main chip PSOC, and the data end of the uplink connector is connected with the data end of the downlink interconnection interface; wherein the main chip PSOC is connected with the GPIO expander, the GPIO expander is connected with the downlink interconnection interface, and the main chip PSOC manages a downlink interconnection interface sideband signal through the GPIO expander. The PSOC of the main chip is subjected to hard disk management through the UBM,and more concise PSOC codes, smaller PSOC packaging and lower PSOC cost can be brought through the introduction of the GPIO EXPANDER. Downlink interconnection port pins are defined as U.3 interface standards, and TRI-MOD is simpler, and more cost is saved.

Description

Technical field [0001] The invention relates to the technical field of backplane design, in particular to a backplane supporting multiple hard disks at the same time. Background technique [0002] The current interface standards for backplanes and hard drives are U.2. For the different types of SAS, SATA, and NVME, the backplane management solutions are different. SAS and SATA use SGPIO management solutions, and NVME uses VPP management solutions. With the development of storage technology, X1 and X2 NVME hard disks will gradually replace the existing SATA interface SSD, but the management solution of VPP cannot achieve lane width detection. In the future development, the TRI-MOD mode, that is, the backplane is compatible with SAS, SATA, and NVME at the same time, will be more and more commonly used. [0003] In the existing technical solutions, such as figure 1 As shown, if a backplane needs to support NVME hard drives and SAS and SATA hard drives at the same time, choose the 86...

AI Technical Summary

Problems solved by technology

[0004] In the existing technical solution, if a backplane needs to support NVME hard disks and SAS and SATA hard disks at the same time, then the uplink connector NVME hard disks and SAS and SATA hard disks need to have separate uplink connectors. At the same time, on the backplane, SAS, SATA SATA links and NVME links need different links to support. The backplane needs to support two management solutions. SAS and SATA hard disks need to be managed through SGPIO, and NVME hard disks need to be managed through VPP. higher cost

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