A method and a system for realizing hard disk lighting based on an extended SFF8485 communication mechanism

Abstract

The invention discloses a method and a system for realizing hard disk lighting based on an extended SFF8485 communication mechanism, which relates to the technical field of a universal server. The lighting method includes: extending the SFF8485 communication mechanism to represent the lighting instructions of each set of hard disks with one or more bytes; sending the light instruction of the harddisk to the CPLD in the form of SGPIO signal; allowing CPLD to analyze that SGPIO signal to obtain the lighting instruction data, and then converting the lighting instruction data into a lighting signal and outputs the lighting signal to the LED lamp of the correspond hard disk for the lighting operation of the hard disk. The invention is based on an extended SFF8485 communication mechanism, without changing the hardware structure of the circuit, Only by modifying the lighting instruction program of SAS / RAID card and the code related to the lighting function of CPLD, various lighting modes canbe supported, and the diversified lighting requirements of customers can be met with minimal modification, and a great expansion space is provided, which facilitates the optimization and improvementof the subsequent product scheme.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of general servers, in particular to a method and system for realizing hard disk lighting based on an extended SFF8485 communication mechanism. Background technique [0002] As the server industry matures, server products emerge in an endless stream. However, the basic classification of hard drives used in servers is still NVME hard drives and SAS / SATA hard drives. Existing SAS / SATA hard drives usually use SGPIO signals for lighting operations, including a blue Locate light for positioning and a red Error light for indicating hard disk errors, and the SGPIO signals mostly come from the SAS / RAID card. The green Active light indicating the working state of the hard disk is controlled by directly reading the state of a specific pin in the hard disk through the CPLD. [0003] The above prior art solution is based on the standard SFF8485 communication mechanism used by the general SAS / R...

AI Technical Summary

Problems solved by technology

[0004] Based on the above technical solutions, it can be seen that the existing standard SFF8485 protocol can only realize the on and off of the Locate and Error lights and the flickering of two frequencies, which cannot meet the customer's needs for the server's diverse lighting methods, and does not have room for expansion.

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