TW202022613A - Indicator lamp control system of server hard disk drive and control method thereof including an expansion card unit that is small in size with increased aperture ratio to install on the back board without a complicated layout design - Google Patents

Abstract

An indicator lamp control system of a server hard disk drive and a control method thereof are disclosed, including a main board, a back board, a hard disk drive unit, and a hard disk drive indicator lamp unit. The main board includes a programmable logic unit. The back board includes an expansion card unit. The hard disk drive indicator lamp unit is connected to the expansion card unit and is controlled by the expansion card unit. With a design that the expansion card unit is configured to directly receive a first lighting message and a second lighting message transmitted by the programmable logic unit, the expansion card unit can receive the first and second lighting messages to control the hard disk drive indicator lamp unit of the hard disk drive to give off light, so as to easily identify an operating state of the hard disk drive unit. In addition, through the ingenious use of the expansion card unit, the price is low and the cost is effectively saved, and the expansion card unit is small in size and can increase the aperture ratio of the back board, and it is easy to install on the back board without complicated layout design to further increase the production efficiency.

Description

Server hard disk indicator light control system and control method thereof

The invention relates to an indicator light control system, in particular to a server hard disk indicator light control system and a control method thereof.

In recent years, with the widespread application and development of servers, server systems have continued to introduce new ones. In server systems, hard disk storage units with large storage capacities are often used to meet the needs of users for server system's huge database storage, network transmission, or other technical service applications and management. In order to conveniently know whether the operation of the hard disk storage unit is abnormal, it is common to display the operation status of the hard disk storage unit with a hard disk status indicator. Generally speaking, in the server system, the hard disk storage unit is electrically connected to the processing unit provided on the backplane and electrically connected to the motherboard. The processing unit is used to detect the status signal of the hard disk storage unit in real time and is programmed by the motherboard. The logic element (Complex Programmable Logic Device, CPLD) generates light-emitting information and transmits it to the complex programmable logic device (CPLD) on the backplane, and the CPLD on the backplane controls the hard disk status indicator light to emit light according to the light-emitting message, allowing the use You can know whether the operating status of the hard disk storage unit is abnormal through the luminous message of the hard disk status indicator. However, an additional CPLD is required on the backplane and the need for component layout is increased, and an additional power supply is also provided to the CPLD, which increases the production cost. Moreover, the backplane is usually a long and narrow design, but the CPLD needs to occupy a large area. The backplane needs to reserve space for the CPLD, which not only increases the design difficulty but also reduces the opening rate of the backplane, which affects the thermal solution of the server system. Practitioners still need to carefully discuss and study improvement solutions.

Therefore, the purpose of the present invention is to provide a server hard disk indicator control system.

Therefore, the server hard disk indicator control system of the present invention includes a motherboard, a backplane, a hard disk unit, and a hard disk indicator unit.

The main board includes a processing unit and a programmable logic unit connected to the processing unit. The backplane includes an expansion card unit connected to the programmable logic unit. The hard disk unit connects the processing unit and the expansion card unit. The hard disk indicator unit is connected to the expansion card unit and is controlled by the expansion card unit.

The expansion card unit is used for receiving a first status signal transmitted by the hard disk unit. The processing unit sends a status detection command to the hard disk unit to detect the operating status of the hard disk unit and receives a second status signal returned by the hard disk unit after being detected. The hard disk indicator unit includes a first status indicator module and a second status indicator module.

When the hard disk unit is operating, the hard disk unit transmits the first status signal to the expansion card unit and the programmable logic unit actively receives the first status signal received by the expansion card unit, and the programmable logic unit After the logic unit receives the first status signal, it generates a corresponding first light-on message and transmits it to the expansion card unit, and the expansion card unit controls the first status indicator module according to the first light-on message Glow. After the processing unit receives the second state signal returned by the hard disk unit and synchronously transmits it to the programmable logic unit, and after the programmable logic unit receives the second state signal, a corresponding second state signal is generated The light message is sent to the expansion card unit. When the expansion card unit receives the second lighting message, it controls the second status indicator module to emit light according to the second lighting message.

Therefore, the purpose of the present invention is to provide a method for controlling the hard disk indicator of a server.

Therefore, the control method of the server hard disk indicator of the present invention is applied to the above-mentioned server hard disk indicator control system. The control method of the server hard disk indicator includes one step (A), one step (B), one step (C), and one step (D).

In the step (A), when the hard disk unit is operating, a first status signal is transmitted to the expansion card unit and the programmable logic unit actively receives the first status signal received by the expansion card unit, and the After the programmable logic unit receives the first status signal, it generates a corresponding first light-on message and transmits it to the expansion card unit, and the expansion card unit controls the first status indicator according to the first light-on message The module glows.

In the step (B), the processing unit will continuously send a status detection command to the hard disk unit to detect the operating status of the hard disk unit, and the hard disk unit will return the second status signal to The processing unit.

In the step (C), when the processing unit receives the second state signal and synchronously transmits it to the programmable logic unit, and after the programmable logic unit receives the second state signal, it generates a corresponding The second lighting message is transmitted to the expansion card unit.

In the step (D), when the expansion card unit receives the second lighting message, it controls the second status indicator module and the third status indicator to emit light according to the second lighting message.

The effect of the present invention lies in the design that the expansion card unit can directly receive the first status signal sent by the hard disk unit and the first light-on message and the second light-on message sent by the programmable logic unit. And with the expansion card unit can control the characteristics of the hard disk indicator unit, so that the expansion card unit can control the hard disk indicator unit to emit light according to the first light-up message and the second light-up message received , And it is convenient for users to know the operating status of the hard disk unit. Moreover, through the ingenuity of using the expansion card unit, the price is low and the cost is effectively saved, and the expansion card unit is small in size, which can increase the hole rate of the backplane, and is convenient to be installed on the backplane without complicated Layout design , Thereby improving production efficiency.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

1 and 2, the first embodiment of the server hard disk indicator control system of the present invention includes a motherboard 1, a backplane 2, a communication bus unit 3, a hard disk unit 4, and a hard disk Indicator unit 5.

The motherboard 1 includes a processing unit 11 and a programmable logic unit 12 connected to the processing unit 11. The backplane 2 includes an expansion card unit 21 connected to the programmable logic unit 12. The hard disk unit 4 connects the processing unit 11 and the expansion card unit 21. The hard disk indicator unit 5 is connected to the expansion card unit 21 and is controlled by the expansion card unit 21.

The communication bus unit 3 includes a plurality of communication bus bars 31, and the communication bus bars 31 are respectively used to connect the processing unit 11 to the programmable logic unit 12 and the programmable logic unit 12 to connect the expansion card unit 21 . In this embodiment, the communication bus 31 of the communication bus unit 3 is in the form of an integrated circuit communication bus (Inter-Integrated Circuit, I²C), but it is not limited to this.

The expansion card unit 21 is used for receiving a first status signal transmitted by the hard disk unit 4. The processing unit 11 will continue to send a status detection command to the hard disk unit 4 to detect the operating status of the hard disk unit 4 and receive a second status signal returned by the hard disk unit 4 after being detected. The hard disk indicator unit 5 includes a first status indicator module 51 and a second status indicator module 52. The second status indicator module has a second status indicator 521 and a third status indicator 522.

When the hard disk unit 4 is operating, the hard disk unit 4 transmits the first status signal to the expansion card unit 21 and the programmable logic unit 12 actively receives the first status signal received by the expansion card unit 21 , And after the programmable logic unit 12 receives the first status signal, it will generate a corresponding first light-on message and transmit it to the expansion card unit 21, and the expansion card unit 21 will follow the first light-on message The first status indicator module 51 is controlled to emit light. In this embodiment, the expansion card unit 21 and the hard disk unit 4 transmit information through a general purpose input/output (General Purpose I/O, GPIO) method, and the expansion card unit 21 and the hard disk indicator unit 5 Information is also transmitted by means of general-purpose input/output (GPIO), for example: the expansion card unit 21 is a physical circuit connected to the hard disk unit 4 and uses a general-purpose input/output (GPIO) method and is pulled up through the level (Pull Up) or pull down (Pull Down) for communication and data transmission, and the expansion card unit 21 is also connected to the hard disk indicator unit 5 by a physical circuit, and is pulled up through the level of GPIO (Pull Up) Or pull down (Pull Down) to control the hard disk indicator unit 5 to light up, but not limited to this. The first status signal represents the present and active status of the hard disk unit 4, but is not limited to this. In other words, when the hard disk unit 4 is powered on, the present and active operating states of the hard disk unit 4 are normal and the first status signal is continuously transmitted to the expansion card unit 21 to The programmable logic unit 12 and the programmable logic unit 12 actively receive the first state signal received by the expansion card unit 21, and after the programmable logic unit 12 receives the first state signal, the first state signal is generated A light-on message is transmitted to the expansion card unit 21. That is, the programmable logic unit 12 can actively (Master) control and receive the information of the expansion card unit 21, when the expansion card unit 21 receives the first light-on message transmitted by the programmable logic unit 12 The first status indicator module 51 of the hard disk indicator unit 5 is controlled to emit light, so that the user can know the corresponding operating status of the hard disk unit 4 by lighting the first status indicator module 51 . In this embodiment, the programmable logic unit 12 is connected to the expansion card unit 21 through an integrated circuit communication bus (I²C). In detail, the programmable logic unit 12 is equivalent to the I²C Master, and can pass through the After the I²C port (not shown) of the programmable logic unit 12 sends an I²C command to the expansion card unit 21 and reads the first status signal information received by the expansion card unit 21 from the hard disk unit 4, the programmable logic unit 12 The logic unit 12 sends the first light-on message (I²C command) to the expansion card unit 21, so that the expansion card unit 21 controls the first status indicator module 51 to light up according to the first light-on message.

Then, the processing unit 11 sends the status detection command to the hard disk unit 4 to detect the operating status of the hard disk unit 4, and the processing unit 11 receives the second status signal returned by the hard disk unit 4 and It is synchronously transmitted to the programmable logic unit 12, and after the programmable logic unit 12 receives the second state signal, it generates a corresponding second light-on message and transmits it to the expansion card unit 21. In detail, during the operation of the hard disk unit 4, the processing unit 11 will send the status detection command to continuously detect the operation status of the hard disk unit 4, such as: Locate, Normal, and invalid (Fail), and alert (Alert), and the hard disk unit 4 will return the second status signal to the processing unit 11 after being detected, that is to say, the second status signal is the hard disk unit 4 receiving The corresponding result after the test. When the processing unit 11 receives the second state signal, it synchronously transmits it to the programmable logic unit 12, and the programmable logic unit 12 decodes the second state signal to generate the corresponding second light-on message and transmit it To the expansion card unit 21. In this embodiment, the status (Locate), Normal (Normal), Fail (Fail) or Alarm (Alert) all have their corresponding second lighting messages, for example: the second status indicator module 52 The second status indicator light 521 is illuminated but the third status indicator light 522 is off to indicate Fail, and the second status indicator light 521 is off but the third status indicator 522 flashes to indicate Alert. Other operating states will not be described separately. However, it is not limited to this, and the second lighting message corresponding to each operating state of the hard disk unit 4 can be designed according to actual usage requirements. In short, after the programmable logic unit 12 decodes the received second status signal, it generates a second light-on message corresponding to the detected result of the hard disk unit 4. When the expansion card unit 21 receives the second light-on message, it controls the second status indicator light 521 and the third status indicator light 522 of the second status indicator module 52 according to the second light-on message Glow.

The expansion card unit 21 can directly receive the first status signal sent by the hard disk unit 4 and receive the first light-on message and the second light-on message sent by the programmable logic unit 12 of the motherboard 1 , And with the expansion card unit 21 can control the hard disk indicator unit 5. When the expansion card unit 21 receives the first light message, the first status indicator module 51 is controlled to emit light, which is easy to know The present and active status of the hard disk unit 4. After the programmable logic unit 12 receives the second status signal, it generates the corresponding second light-on message and transmits it to the expansion card unit 21. When the expansion card unit 21 receives the second light-on message At the same time, the second status indicator light 521 and the third status indicator light 522 of the second status indicator module 52 are controlled to emit light according to the second light-on message, so that the user can know the position of the hard disk unit 4 (Locate), whether it is invalid (Fail), and alarm (Alert) and other statuses. Furthermore, by using the expansion card unit 21 and cooperating with the application ingenuity of the programmable logic unit 12 originally installed on the main board 1, cost is effectively saved and no additional programmable logic unit is required on the backplane 2 12, and the expansion card unit 21 is small in size, which can increase the opening rate of the backplane 2, and is easy to be installed on the backplane 2, without complicated layout design, thereby improving production efficiency. In this embodiment, the expansion card unit 21 is an I/O Expander, which can be 8-bit/16-bit, etc., and the I/O Expander has the advantages of low cost and good versatility.

In addition, in this embodiment, the hard disk unit 4 has a plurality of solid-state hard disks (not shown) conforming to the non-volatile memory (Non-Volatile Memory express, NVME) standard, and the processing unit 11 and the hard disk The disk unit 4 uses NVME signals to transfer data between each other, but it is not limited to this. The hard disk unit 4 can be a solid state drive with multiple SATA (Serial Advanced Technology Attachment) interfaces (not shown in the figure). Show). It should be noted here that if the hard disk unit 4 in the SATA mode is used, please refer to Figures 3 and 4. The second embodiment of the server hard disk indicator control system of the present invention is roughly the same as that of the server hard disk. The first embodiment of the disk indicator control system is the same, but the difference is that the processing unit 11 includes a platform path controller 111 (Platform Controller Hub, PCH) connecting the programmable logic unit 12 and the hard disk unit 4, And a processor 112 connected to the platform path controller 111. During operation, the processor 112 of the processing unit 11 sends the status detection command to the hard disk unit 4 via the platform path controller 111 to detect the operating status of the hard disk unit 4, and after the hard disk unit 4 is detected The second status signal is returned to the platform path controller 111. The platform path controller 111 receives the second status signal sent by the hard disk unit 4 and synchronously sends it to the programmable logic unit 12. In simple terms, the processor 112 of the processing unit 11 communicates with the hard disk unit 4 in the SATA mode through the platform path controller 111, and the platform path controller 111 receives the second status signal. It is synchronously transmitted to the programmable logic unit 12 for decoding. After the programmable logic unit 12 decodes the received second status signal, generates the second light-on message corresponding to the result of the detection of the hard disk unit 4 and transmits it to the expansion card unit 21, and the expansion card The unit 21 controls the second status indicator light 521 and the third status indicator light 522 of the second status indicator module 52 to emit light according to the second light-on message. In addition, it should be noted that in this embodiment, only one communication bus 31 (I²C) is used to connect the programmable logic unit 12 to the expansion card unit 21, and the programmable logic unit 12 to connect to the platform path controller 111 Information is transmitted in the form of Serial General Purpose I/O (SGPIO), but it is not limited to this. In other words, since the hard disk unit 4 is in the SATA mode in this embodiment, the platform path controller 111 (PCH) is a serial general-purpose input/output (SGPIO) communication interface with the programmable logic unit 12 In the first embodiment, the hard disk unit 4 is in NVME mode, so the processing unit 11 (CPU) communicates with the programmable circuit through the communication interface of the integrated circuit communication bus (I²C) The logic unit 12 performs communication and data transmission.

1 and 2, the first embodiment of the control method of the server hard disk indicator of the present invention is applied to the first embodiment of the above-mentioned server hard disk indicator control system. The control method of the server hard disk indicator includes one step (A), one step (B), one step (C), and one step (D).

First, in the step (A), when the hard disk unit 4 is operating, a first status signal is transmitted to the expansion card unit 21 and the programmable logic unit 12 actively receives the first state signal received by the expansion card unit 21 A status signal, and after the programmable logic unit 12 receives the first status signal, a corresponding first light-on message is generated and transmitted to the expansion card unit 21, and the expansion card unit 21 lights up according to the first The light message controls the first status indicator module 51 to emit light. In other words, when the hard disk unit 4 is operating, the hard disk unit 4 transmits the first status signal to the expansion card unit 21, and when the expansion card unit 21 receives the first status signal, it controls the first status signal. A status indicator module 51 emits light. In this embodiment, the expansion card unit 21 and the hard disk unit 4 transmit information through a general purpose input/output (General Purpose I/O, GPIO) method, and the expansion card unit 21 and the hard disk indicator unit 5 Information transmission is also carried out by means of general-purpose input/output (GPIO), and the first status signal is the present and active status of the hard disk unit 4, but not limited to this. In other words, when the hard disk unit 4 is powered on and the operation status of the hard disk unit 4 is normal, the first status signal is continuously transmitted through the expansion card unit. 21 to the programmable logic unit 12, and after the programmable logic unit 12 receives the first status signal, the first light-on message is generated and transmitted to the expansion card unit 21. When the expansion card unit 21 receives the first light-on message, it controls the first status indicator module 51 of the hard disk indicator unit 5 to emit light according to the first light-on message, so that the user can use the first The status indicator module 51 lights up to know the corresponding status of the hard disk unit 4. In this embodiment, the programmable logic unit 12 is connected to the expansion card unit 21 through an integrated circuit communication bus (I²C). In detail, the programmable logic unit 12 is equivalent to the I²C Master, and can pass through the After the I²C port (not shown) of the programmable logic unit 12 sends an I²C command to the expansion card unit 21 and reads the first status signal information received by the expansion card unit 21 from the hard disk unit 4, the programmable logic unit 12 The logic unit 12 sends the first light-on message (I²C command) to the expansion card unit 21, so that the expansion card unit 21 controls the first status indicator module 51 to light up according to the first light-on message.

Then, in the step (B), the processing unit 11 will continue to send a status detection command to the hard disk unit 4 to detect the operating status of the hard disk unit 4, and the hard disk unit 4 will return after being detected The second status signal is sent to the processing unit 11. In detail, during the operation of the hard disk unit 4, the processing unit 11 will send the status detection command to continuously detect the operation status of the hard disk unit 4, such as: Locate, Normal, and invalid (Fail), and alert (Alert), and the hard disk unit 4 will return the second status signal to the processing unit 11 after being detected, that is to say, the second status signal is the hard disk unit 4 receiving The corresponding result after the test.

Then, in the step (C), when the processing unit 11 receives the second state signal and synchronously transmits it to the programmable logic unit 12, and after the programmable logic unit 12 receives the second state signal , A corresponding second light-on message is generated and transmitted to the expansion card unit 21. Furthermore, when the processing unit 11 receives the second state signal, it is synchronously transmitted to the programmable logic unit 12, and the programmable logic unit 12 decodes the second state signal to generate the corresponding second light The message is transmitted to the expansion card unit 21. In this embodiment, the communication bus 31 (I²C) is used to connect the processing unit 11 to the programmable logic unit 12 and the programmable logic unit 12 to connect to the expansion card unit 21, respectively. In the step (C), the processing unit 11 transmits the second state signal to the programmable logic unit 12 through the corresponding communication bus 31 (I²C), and the programmable logic unit 12 receives the second state signal The status signal is decoded to generate the second lighting message and the second lighting message is transmitted to the expansion card unit 21 through the corresponding communication bus 31 (I²C).

Finally, in the step (D), when the expansion card unit 21 receives the second lighting message, it will control the second status indicator of the second status indicator module 52 according to the second lighting message 521 and the third status indicator 522 are illuminated. In this embodiment, the operating status of the hard disk unit 4, such as: Locate, Normal, Fail, or Alert, etc., has a corresponding second light message, such as: The second status indicator light 521 of the second status indicator module 52 is illuminated but the third status indicator light 522 is off, which means Fail. The second status indicator light 521 is off but the third status indicator 522 flashes. Light stands for Alert. Other operating states will not be described, but not limited to this. The second light message corresponding to each operating state of the hard disk unit 4 can be designed according to actual usage requirements. In the above steps, in simple terms, in step (B), the second status signal returned after the hard disk unit 4 is tested corresponds to the result of the hard disk unit 4 being tested, and in this step In (C), after the programmable logic unit 12 decodes the received second status signal, it generates the second light-on message corresponding to the result of the detection of the hard disk unit 4 and transmits it to the expansion card unit 21. In the step (D), when the expansion card unit 21 receives the second lighting message, it will control the second state of the second status indicator module 52 according to the second lighting message The indicator light 521 and the third status indicator light 522 are illuminated.

The expansion card unit 21 can directly receive the first status signal sent by the hard disk unit 4 and receive the first light-on message and the second light-on message sent by the programmable logic unit 12 of the motherboard 1 , And with the feature that the expansion card unit 21 can control the hard disk indicator unit 5, in step (A), when the expansion card unit 21 receives the first light-on message, the first status indicator is controlled The module 51 emits light, which is convenient for knowing the present and active status of the hard disk unit 4. In the step (C), after the programmable logic unit 12 receives the second status signal, it decodes the second status signal and generates the corresponding second light-on message, which is transmitted to the expansion card unit 21 . And in conjunction with step (D), when the expansion card unit 21 receives the second lighting message, it will control the second status indicator module 52 and the third status indicator according to the second lighting message The light 522 is illuminated to let the user know the position (Locate), whether the hard disk unit 4 is failed (Fail), and the status of the alarm (Alert). By using the expansion card unit 21 and cooperating with the application ingenuity of the programmable logic unit 12 originally installed on the motherboard 1, the cost is effectively saved and the advantage of not having to additionally provide the programmable logic unit 12 on the backplane 2 is achieved Moreover, the expansion card unit 21 is small in size, which can increase the opening rate of the backplane 2 and is convenient to be installed on the backplane 2 without complicated layout design, thereby improving production efficiency.

In addition, in this embodiment, the hard disk unit 4 has a plurality of solid-state hard disks (not shown) conforming to the non-volatile memory (Non-Volatile Memory express, NVME) standard, and the processing unit 11 and the hard disk Unit 4 uses NVME signals to transfer data between each other, but it is not limited to this, and it can also be designed according to design requirements. The hard drive unit 4 is a solid state drive using multiple SATA (Serial Advanced Technology Attachment) interfaces (not shown) . It should be noted here that if the hard disk unit 4 in the SATA mode is used, please refer to FIGS. 3 and 4. The second embodiment of the method for controlling the hard disk indicator of the server of the present invention is applied to the above-mentioned servo The second embodiment of the hard disk indicator control system of the server is roughly the same as the first embodiment of the method of controlling the hard disk indicator of the server. The difference is that in this step (B), the processing unit 11 is The processor 112 sends the status detection command to the hard disk unit 4 via a platform path controller 111 (PCH) to detect the operating status of the hard disk unit 4, and the hard disk unit 4 will return the The second status signal is sent to the platform path controller 111. And in the step (C), the platform path controller 111 receives the second status signal transmitted by the hard disk unit 4 and synchronously transmits it to the programmable logic unit 12, and the programmable logic unit 12 receives After the second status signal, the second lighting message corresponding to the result of the detection of the hard disk unit 4 is generated and transmitted to the expansion card unit 21. Simply put, in step (B), the processor 112 of the processing unit 11 communicates with the hard disk unit 4 in the SATA mode through the platform path controller 111, and in step (C), The platform path controller 111 receives the second state signal and transmits it to the programmable logic unit 12 for decoding. The programmable logic unit 12 decodes the received second state signal to generate a corresponding hard disk unit 4 The second light-on message of the result of the detection is transmitted to the expansion card unit 21. In step (D), the expansion card unit 21 controls the second status indicator light 521 and the third status indicator light 522 of the second status indicator module 52 to emit light according to the second light-on message. In addition, it should be noted that in this embodiment, only one communication bus 31 (I²C) is used to connect the programmable logic unit 12 to the expansion card unit 21, and the programmable logic unit 12 to connect to the platform path controller 111 is a general purpose input/output (GPIO) for information transmission, so in this step (C), the platform path controller 111 of the processing unit 11 uses serial general purpose input/output (Serial General Purpose I/O, SGPIO ) Transmits the second state signal to the programmable logic unit 12, and the programmable logic unit 12 decodes the received second state signal to generate the second light-on message and pass it through the communication bus (I²C) Transmit the second light-on message to the expansion card unit 21. In other words, since the hard disk unit 4 is in the SATA mode in this embodiment, the platform path controller 111 (PCH) communicates with the programmable logic unit 12 through a serial general-purpose input/output (SGPIO) interface. For communication and data transmission; and in the first embodiment, the hard disk unit 4 is in NVME mode, so the processing unit 11 (CPU) communicates with the programmable device through the communication interface of the integrated circuit communication bus (I²C) Logic unit 12 for communication and data transmission

In summary, the server hard disk indicator control system and control method of the present invention can directly receive the first status signal sent by the hard disk unit 4 and the programmable logic unit 12 through the expansion card unit 21 The design of the first light-on message and the second light-on message, combined with the feature that the expansion card unit 21 can control the hard disk indicator unit 5, achieves that the expansion card unit 21 depends on the first received The light-on message and the second light-on message control the hard disk indicator unit 5 to emit light, and let the user know the operating status of the hard disk unit 4. Furthermore, through the ingenuity of using the expansion card unit 21, the cost is effectively saved, and the expansion card unit 21 is small in size, which can increase the opening rate of the backplane 2, and is easy to install on the backplane 2, without complicated Layout design to improve production efficiency.

However, the above are only examples of the present invention, and should not be used to limit the scope of implementation of the present invention, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification still belong to This invention covers the patent.

1: Motherboard 31: Communication bus 11: Processing unit 4: Hard disk unit 111: Platform path controller 5: Hard disk indicator unit 112: Processor 51: First status indicator module 12: Programmable logic unit 52 : Second status indicator module 2: Backplane 521: Second status indicator 21: Expansion card unit 522: Third status indicator 3: Communication bus unit A~D: Step

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a block diagram illustrating the first embodiment of the server hard disk indicator control system of the present invention; Figure 2 It is a flowchart illustrating the first embodiment of the control method of the server hard disk indicator of the present invention; Figure 3 is a block diagram illustrating the second embodiment of the server hard disk indicator control system of the present invention; and Figure 4 It is a flowchart illustrating the second embodiment of the control method of the server hard disk indicator of the present invention.

1: Motherboard

11: Processing unit

12: Programmable logic unit

2: backplane

21: Expansion card unit

3: Communication bus unit

31: Communication bus

4: hard drive unit

5: Hard disk indicator unit

51: The first status indicator module

52: The second status indicator module

521: second status indicator

522: third status indicator

Claims (10)

A server hard disk indicator control system, comprising: a main board, including a processing unit, and a programmable logic unit connected to the processing unit; a backplane, including an expansion card unit connected to the programmable logic unit; A hard disk unit connecting the processing unit and the expansion card unit, the expansion card unit is used to receive a first status signal sent by the hard disk unit, and the processing unit will send a status detection command to the hard disk unit to detect The operating status of the hard disk unit and receiving a second status signal returned after the hard disk unit is detected; and a hard disk indicator unit connected to the expansion card unit and controlled by the expansion card unit, and includes a A first status indicator module and a second status indicator module. When the hard disk unit is operating, the hard disk unit sends the first status signal to the expansion card unit, and the programmable logic unit takes the initiative The first status signal received by the expansion card unit is received, and after the programmable logic unit receives the first status signal, a corresponding first light-on message is generated and transmitted to the expansion card unit, and the The expansion card unit controls the first status indicator module to emit light according to the first light-on message, and when the processing unit receives the second status signal sent by the hard disk unit and synchronously sends it to the programmable logic unit, the After the programming logic unit receives the second status signal, it will generate a corresponding second light-on message and transmit it to the expansion card unit. When the expansion card unit receives the second light-on message, it will follow the second The lighting message controls the second status indicator module to emit light. The server hard disk indicator control system according to claim 1, further comprising a communication bus unit, the communication bus unit includes a plurality of communication bus, the communication bus is used to connect the processing unit to the A programmable logic unit, and the programmable logic unit is connected to the expansion card unit. The server hard disk indicator control system according to claim 2, wherein the communication bus of the communication bus unit is an integrated circuit communication bus. The server hard disk indicator control system according to claim 2, wherein the expansion card unit performs data transmission with the hard disk unit through a universal input/output method. The server hard disk indicator control system according to claim 1, wherein the processing unit includes a platform path controller connecting the programmable logic unit and the hard disk unit, and a processor connecting the platform path controller The processor of the processing unit will send the status detection command to the hard disk unit via the platform path controller to detect the operating status of the hard disk unit, and the hard disk unit will return the second status after being detected The signal is sent to the platform path controller, where the platform path controller receives the second status signal transmitted by the hard disk unit and synchronously transmits it to the programmable logic unit. The server hard disk indicator control system according to claim 1, wherein the second status indicator module has a second status indicator and a third status indicator, and the status detection command is used to detect the The position, normal, failure, and alarm operation status of the hard disk unit. The second status signal returned after the hard disk unit is detected is the result of the detection of the operation status of the hard disk unit. After receiving the second status signal, the programming logic unit generates the corresponding second light-on message and transmits it to the expansion card unit. When the expansion card unit receives the second light-up message, it lights up according to the second The second status indicator light and the third status indicator light of the second status indicator module are controlled to emit light by means of universal input/output. A method for controlling a server hard disk indicator light is applied to the server hard disk indicator light control system as described in claim 1. The server hard disk indicator light control method includes the following steps: (A) the hard disk unit During operation, a first state signal is transmitted to the expansion card unit, and the programmable logic unit actively receives the first state signal received by the expansion card unit, and the programmable logic unit receives the first state After the signal, a corresponding first lighting message is generated and transmitted to the expansion card unit, and the expansion card unit controls the first status indicator module to emit light according to the first lighting message; (B) the processing unit It will continuously send a status detection command to the hard disk unit to detect the operating status of the hard disk unit, and the hard disk unit will return the second status signal to the processing unit after being detected; (C) in the processing unit When the second status signal is received, it is synchronously transmitted to the programmable logic unit, and after the programmable logic unit receives the second status signal, a corresponding second light-on message is generated and transmitted to the expansion card unit (D) When the expansion card unit receives the second light-on message, it controls the second status indicator module and the third status indicator light to emit light according to the second light-on message. According to the method for controlling the server hard disk indicator light of claim 7, the server hard disk indicator light control system further includes a communication bus unit, the communication bus unit including a plurality of communication buses, the communication bus The rows are respectively used to connect the processing unit to the programmable logic unit and to connect the programmable logic unit to the expansion card unit, wherein, in step (C), the processing unit transmits the second communication bus through the corresponding communication bus. Two-state signal to the programmable logic unit. The method for controlling a hard disk indicator light of a server according to claim 7, wherein the processing unit includes a platform path controller connecting the programmable logic unit and the hard disk unit, and a processor connecting the platform path controller , Wherein, in the step (B), the processor of the processing unit sends the status detection command to the hard disk unit via the platform path controller to detect the operating status of the hard disk unit, and the hard disk unit is After detection, the second status signal is returned to the platform path controller, and in step (C), the platform path controller receives the second status signal sent by the hard disk unit and synchronously sends it to the Programmable logic unit. The method for controlling a server hard disk indicator light according to claim 9, wherein the server hard disk indicator light control system further includes a communication bus unit, the communication bus unit includes a communication bus, and the communication bus Connect the platform path controller of the processing unit to the expansion card unit, wherein, in step (C), the processor of the processing unit transmits the second state signal to the programmable logic unit by means of universal input and output , And the programmable logic unit transmits the generated second light-on message to the expansion card unit through the communication bus.

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