Control method of hard disk indicator lamp and related device

Abstract

The invention discloses a control method of a hard disk indicator lamp. The control method comprises the steps of receiving the hard disk type of a hard disk is read from an SAS expander, and a statesignal of the hard disk, wherein the state signals comprise an active state signal, a position signal and a fault state signal; according to the hard disk type, alternatively negating the active statesignal of the SAS hard disk or the SATA hard disk and outputting the negated active state signal to an active state indication circuit; and correspondingly outputting the position signal and the fault state signal to a position indication circuit and a fault state indication circuit. According to the control method, one set of active state indication circuit can be compatible with the SAS hard disk and the STAR hard disk. The cost is saved, and the PCB layout space is saved. The invention further discloses a hard disk indicator light control device and system and a computer readable storage medium which all have the above technical effects.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a method for controlling a hard disk indicator light; it also relates to a control device, system and computer-readable storage medium for a hard disk indicator light. Background technique [0002] The hard disk indicator is used to display the running status of the hard disk, which is convenient for obtaining the running status of the hard disk in time. Currently, in a storage system, hard disk indicators include a position indicator, a fault status indicator, and an activity status indicator. Wherein, the driving mode of the activity status indicator is that the hard disk read / write status output pin of the hard disk directly outputs the activity status signal of the hard disk to the activity indicator circuit. However, the communication protocols and signal definitions followed by SAS hard disks and STA hard disks are different. When SAS hard disks are idle, their...

AI Technical Summary

Problems solved by technology

However, the communication protocols and signal definitions followed by SAS hard disks and STA hard disks are different. When SAS hard disks are idle, their hard disk read / write status output pins output low level. When SATA hard disks are idle, their hard disk read / write status outputs The pin outputs a high level, so a set of activity status indication circuit can only correctly indicate the activity status of one of the hard disks, and cannot realize the compatibility of SAS hard disks and STA hard disks

If two sets of activity status indicating circuits are used to indicate the activity status of SAS hard disk and STA hard disk respectively, it will increase the cost and occupy PCB space

Images