CN116955264A - Communication connection establishment method and device, storage medium, electronic equipment - Google Patents

Abstract

The embodiment of the application provides a method and a device for establishing communication connection, a storage medium and electronic equipment, wherein the method comprises the following steps: under the condition that the server is provided with N hard disk backplates, the communication connection between the ith hard disk backplate and the (i+1) th hard disk backplate in the N hard disk backplates is established through the i-th board-to-board connector, so that the N hard disk backplates are in serial communication connection, wherein N is an integer greater than 1, i is an integer greater than or equal to 1 and less than or equal to N-1, and the communication connection between the computer motherboard and the first hard disk backplate in the N hard disk backplates is established through the backplate connector, so that the communication connection between the computer motherboard and the N hard disk backplates is established. By adopting the technical scheme, the problems that cables are complicated and complicated, the placement position of the hard disk backboard is limited, the space arrangement is difficult and the like are easily caused when different hard disk backboard is connected to a computer main board through backboard connectors.

Description

Communication connection establishment method and device, storage medium, electronic equipment

Technical field

Embodiments of the present application relate to the field of computers, specifically, to a method and device for establishing a communication connection, a storage medium, and an electronic device.

Background technique

In recent years, with the rapid development of Internet technology, cloud services and cloud computing have flourished, and servers have become increasingly important as key equipment supporting various current Internet applications. There are many categories of server products. Basically, general-purpose servers require storage media and hard drives. These hard drives and other storage media are mainly used for OS installation, APP installation, and business software deployment, etc.

The main function of the server hard disk backplane is to support the interconnection between the motherboard and the storage device, and to provide a data transmission channel for the supported motherboard. With the development of the times, the requirements for server storage capabilities have gradually increased, and the types of hard disks have gradually become more diverse. In order to adapt to different application scenarios, servers often configure multiple hard disk backplanes on the motherboard to connect various hard disks.

As shown in Figure 1, at present, servers equipped with multiple hard disk backplanes mainly use multiple connectors on the motherboard. Different connectors are connected to different hard disk backplanes. The baseboard management controller of the motherboard Controller (BMC for short) distinguishes the position of each backplane in the system according to the connector, so that the corresponding hard disk backplane can be accessed. However, the setting of multiple connectors will take up more physical space, and different hard disk backplanes can pass through Cables are connected to different connectors on the motherboard, which greatly increases the number of power cables, high-speed cables and other cables between the motherboard and the backplane, which easily results in complicated cables, restricted placement of the hard disk backplane, and limited space arrangement. Difficulties and other problems; in addition, this method also needs to occupy more BMC and Complex Programmable Logic Device (CPLD) pins, and there is a problem of insufficient BMC and CPLD pins on the motherboard.

In related technologies, different hard disk backplanes are connected to the computer motherboard through backplane connectors, which easily leads to problems such as complicated cables, restricted placement of hard disk backplanes, and difficult space arrangement. No effective solution has yet been proposed.

Therefore, it is necessary to improve the related technology to overcome the defects in the related technology.

Contents of the invention

Embodiments of the present application provide a communication connection establishment method and device, storage media, and electronic equipment to at least solve the problem that different hard disk backplanes are connected to the computer motherboard through backplane connectors, which easily causes complicated cables and hard disk backplane problems. Problems such as limited placement and difficult space arrangement.

According to an embodiment of the present application, a method for establishing a communication connection is provided, including: when the server has N hard disk backplanes, establishing the i-th of the N hard disk backplanes through the i-th board-to-board connector. The communication connection between the hard disk backplane and the (i+1)th hard disk backplane, so that the N hard disk backplanes can realize serial communication connection, where N is an integer greater than 1, i is greater than or equal to 1, and less than or equal to An integer of N-1; establish a communication connection between the computer motherboard and the first of the N hard disk backplanes through the backplane connector to establish a communication connection between the computer mainboard and the N hard disk backplanes. .

Optionally, establishing a communication connection between the computer motherboard and the first hard disk backplane through a backplane connector includes: arranging the backplane connector on the first hard disk backplane, wherein the backplane connector is The board connector includes: microcontroller input and output MCIO connector, Slimline connector, integrated circuit bus I2C connector, virtual parallel port VPP connector; establish a connection relationship between the backplane connector and the computer motherboard to establish The communication connection between the computer motherboard and the first hard disk backplane.

Optionally, after establishing the communication connection between the computer motherboard and the first hard disk backplane through the backplane connector, the method further includes: obtaining the data through the complex programmable logic device CPLD on the first hard disk backplane. The backplane address of each hard disk backplane in the N hard disk backplanes is used to obtain N backplane addresses; through the CPLD, the N backplane addresses are sent to the computer using the backplane connector The baseboard management controller (BMC) of the motherboard.

Optionally, after establishing the communication connection between the computer motherboard and the first hard disk backplane through the backplane connector, the method further includes: obtaining the N hard disks through the CPLD on the first hard disk backplane. The backplane status information of each hard disk backplane in the backplane and the hard disk status information corresponding to each hard disk backplane are obtained to obtain N backplane status information and N hard disk status information; through the CPLD, use the backplane status information The board connector sends the N pieces of backplane status information and N pieces of hard disk status information to the BMC of the computer motherboard.

Optionally, after establishing the communication connection between the computer motherboard and the first hard disk backplane through the backplane connector, the method further includes: receiving the data through the backplane connector on the first hard disk backplane. A control instruction sent by the computer motherboard; when the first hard disk backplane determines that the control object of the control instruction is not the hard disk corresponding to the first hard disk backplane, the first board-to-board controller Forward the control instruction to the second hard disk backplane; when the first hard disk backplane determines that the control object of the control instruction is the hard disk corresponding to the first hard disk backplane, according to the control The instruction operates on the hard disk corresponding to the first hard disk backplane.

Optionally, after establishing the communication connection between the computer motherboard and the first hard disk backplane through the backplane connector, the method further includes: obtaining the computer through the I2C connector on the first hard disk backplane. The lighting information sent by the BMC of the motherboard, wherein the lighting information carries the backplane address of the target hard disk backplane, and the lighting information is used to instruct the lighting of the target light-emitting diode of the hard disk corresponding to the target hard disk backplane, so The backplane connector includes the I2C connector; the lighting information is parsed through the CPLD on the first hard disk backplane to determine the backplane address of the target hard disk backplane; the first hard disk backplane determines When the target hard disk backplane is not the first hard disk backplane, the first hard disk backplane is connected to the target hard disk backplane through one or more board-to-board connectors between the first hard disk backplane and the target hard disk backplane. The hard disk backplane forwards the lighting information to instruct the target hard disk backplane to light the target light-emitting diode of the hard disk corresponding to the target hard disk backplane; in the first hard disk backplane, it is determined that the target hard disk backplane is the In the case of the first hard disk backplane, the target LED of the hard disk corresponding to the first hard disk backplane is lit through the first hard disk backplane.

Optionally, before establishing the communication connection between the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes through the i-th board-to-board connector, the method further includes: Determine the first hard disk backplane among the N hard disk backplanes, wherein the first hard disk backplane supports N transmission protocols, and the N transmission protocols are the N hard disks corresponding to the N hard disk backplanes. The transport protocol used.

According to another embodiment of the present application, a communication connection establishment device is provided, including: a first establishment module, configured to establish through the i-th board-to-board connector when the server has N hard disk backplanes. The communication connection between the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes, so that the N hard disk backplanes can achieve a series communication connection, where N is an integer greater than 1, i is an integer greater than or equal to 1 and less than or equal to N-1; the second establishment module is used to establish a communication connection between the computer motherboard and the first hard disk backplane among the N hard disk backplanes through the backplane connector to establish The communication connection between the computer motherboard and the N hard disk backplanes.

According to yet another embodiment of the present application, a computer-readable storage medium is also provided. A computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute any of the above methods when running. Steps in Examples.

According to yet another embodiment of the present application, an electronic device is also provided, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to perform any of the above. Steps in method embodiments.

Through this application, when the server has N hard disk backplanes, the connection between the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes is established through the i-th board-to-board connector. Communication connection, and establishing a communication connection between the computer mainboard and the first of the N hard disk backplanes through the backplane connector, so as to establish a communication connection between the computer mainboard and the N hard disk backplanes. Since N hard disk backplanes have been cascaded using board-to-board connectors, only one backplane connector is needed to establish communication connections between N hard disk backplanes and the computer motherboard, solving the problem of different hard disk backplanes passing through When the backplane connector is connected to the computer motherboard, it is easy to cause problems such as complicated cables, limited placement of the hard disk backplane, and difficult space arrangement, thereby reducing the number of cables used to connect the hard disk backplane to the computer motherboard in the server. The effect of use.

Description of the drawings

Figure 1 is a connection structure diagram between a computer host and multiple hard disk backplanes in the prior art;

Figure 2 is a hardware structure block diagram of a mobile terminal of a method for establishing a communication connection according to an embodiment of the present application;

Figure 3 is a flow chart of a method for establishing a communication connection according to an embodiment of the present application;

Figure 4 is a topology diagram of using board-to-board connectors to realize the cascading of N hard disk backplanes according to an embodiment of the present application;

Figure 5 is a schematic structural diagram of a cascaded hard disk backplane according to an embodiment of the present application;

Figure 6 is a structural block diagram of a device for establishing a communication connection according to an embodiment of the present application.

Detailed ways

The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

The method embodiments provided in the embodiments of this application can be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, FIG. 2 is a hardware structure block diagram of a mobile terminal of a method for establishing a communication connection according to an embodiment of the present application. As shown in Figure 2, the mobile terminal may include one or more (only one is shown in Figure 2) processors 202 (the processor 202 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 204 for storing data, wherein the above-mentioned mobile terminal may also include a transmission device 206 and an input and output device 208 for communication functions. Persons of ordinary skill in the art can understand that the structure shown in FIG. 2 is only illustrative, and it does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal may also include more or fewer components than shown in FIG. 2 , or have a different configuration than shown in FIG. 2 .

The memory 204 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for establishing a communication connection in the embodiment of the present application. The processor 202 runs the computer program stored in the memory 204, thereby Execute various functional applications and data processing, that is, implement the above methods. Memory 204 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 204 may further include memory located remotely relative to the processor 202, and these remote memories may be connected to the mobile terminal through a network. Examples of the above-mentioned networks include but are not limited to the Internet, intranets, local area networks, mobile communication networks and combinations thereof.

Transmission device 206 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 206 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 206 may be a radio frequency (Radio Frequency, RF for short) module, which is used to communicate with the Internet wirelessly. In order to solve the above problem, this embodiment provides a method for establishing a communication connection. Figure 3 is a flow chart of a method for establishing a communication connection according to the embodiment of the present application. As shown in Figure 3, the process includes the following steps :

Step S302: When the server has N hard disk backplanes, establish communication between the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes through the i-th board-to-board connector. Connection, so that the N hard disk backplanes realize serial communication connection, where N is an integer greater than 1, i is an integer greater than or equal to 1, and less than or equal to N-1;

It should be noted that the values of i in the above step S302 are 1, 2, 3...N-1 in sequence. That is, the communication connection between the first hard disk backplane and the second hard disk backplane is established through the first board-to-board connector, and the second hard disk backplane and the third hard disk backplane are established through the second board-to-board connector. Communication connection between hard disk backplanes, so that the N hard disk backplanes realize serial communication connection... The N-1th hard disk backplane and the Nth hard disk backplane are established through the N-1th board-to-board connector communication connection between them, thereby realizing the serial communication connection between N hard disk backplanes.

It should be noted that the N hard disk backplanes include but are not limited to: Serial Attached SCSI (SAS) hard disk backplanes, Serial ATA (Serial Advanced Technology Attachment, SATA) hard disk backplanes, fast non-volatile Non-Volatile Memory Express (NVME) hard drive backplane.

It should be noted that the board-to-board connector is a connector used to realize the communication connection between two backplane hard boards. The board-to-board connector can transfer the Peripheral Component Interconnect Express (PCIe for short) ), SAS/SATA, serial dual circuit (Inter-Integrated Circuit, referred to as I2C), hard disk status, lighting and other signals. As an optional example, multiple hard disk backplanes are cascaded to obtain a cascaded hard disk backplane, as shown in Figure 5. Figure 5 illustrates a schematic structural diagram of a cascaded hard disk backplane.

As an optional example, the board-to-board connectors between different types of hard disk backplanes can be the same or different. In an exemplary embodiment, before the above step S302, it is also necessary to determine a first hard disk backplane from the N hard disk backplanes, where the first hard disk backplane supports N transmission protocols, The N transmission protocols are transmission protocols used by the N hard disks corresponding to the N hard disk backplanes.

That is to say, in this embodiment, if the N hard disk backplanes are SAS hard disk backplanes, SATA hard disk backplanes, or NVME hard disk backplanes, you need to select a basic backplane (basic backplane) from the N hard disk backplanes. That is, the first hard disk backplane). This hard disk backplane needs to support the SAS/SATA/NVME protocol. This hard disk backplane is designed according to the standard backplane.

Step S304: Establish a communication connection between the computer motherboard and the first hard disk backplane among the N hard disk backplanes through a backplane connector, so as to establish a communication connection between the computer mainboard and the N hard disk backplanes.

It should be noted that since N hard disk backplanes have been cascaded together through N-1 board-to-board connectors, it is only necessary to use the backplane connector to establish the communication connection between the computer motherboard and the first hard disk backplane. Establish communication connections between the computer motherboard and N hard disk backplanes.

Through the above steps S302-S304, when the server has N hard disk backplanes, the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes are established through the i-th board-to-board connector. The communication connection between the computer motherboard and the first of the N hard disk backplanes is established through the backplane connector, so as to establish the communication between the computer mainboard and the N hard disk backplanes. connect. Since N hard disk backplanes have been cascaded using board-to-board connectors, only one backplane connector is needed to establish communication connections between N hard disk backplanes and the computer motherboard, solving the problem of different hard disk backplanes passing through When the backplane connector is connected to the computer motherboard, it is easy to cause problems such as complicated cables, limited placement of the hard disk backplane, and difficult space arrangement, thereby reducing the number of cables used to connect the hard disk backplane to the computer motherboard in the server. The effect of use.

In an exemplary embodiment, the above step S304 can be implemented through the following steps S11-S12:

Step S11: Set the backplane connector on the first hard disk backplane, where the backplane connector includes: microcontroller input and output MCIO connector, Slimline connector, integrated circuit bus I2C connector , virtual parallel port VPP connector;

Step S12: Establish a connection relationship between the backplane connector and the computer motherboard to establish a communication connection between the computer motherboard and the first hard disk backplane.

That is to say, in this embodiment, a Microcontroller Input/Output (MCIO) connector, a Slimline connector, an I2C connector, a Virtual Parallel Port (Virtual Parallel Port) are required on the first hard disk backplane. Devices such as Parallel Port (referred to as VPP) connectors are then connected to the computer motherboard through cables to interact with the computer motherboard for signals.

It should be noted that the MCIO connector is a connector used to connect to a microcontroller. It provides an input/output channel from the microcontroller to external devices, allowing the microcontroller to communicate and control other electronic devices; the Slimline connector is a thinner connector that provides power, data and signals Transmission and other functions enable internal components to connect to the motherboard or other devices; the I2C connector is a connector used to connect to the I2C bus. The I2C bus is a serial communication protocol that is often used to connect multiple devices to realize the device Data exchange and communication between; VPP connector is a virtual parallel port connector used to connect parallel devices in a computer system, such as printers or scanners. It simulates a physical parallel port through software so that the computer can communicate with Parallel devices communicate.

In an exemplary embodiment, after the backplane connector establishes the communication connection between the computer motherboard and the first hard disk backplane, there are also the following steps S21-S22:

Step S21: The complex programmable logic device CPLD on the first hard disk backplane obtains the backplane address of each hard disk backplane among the N hard disk backplanes, and obtains N backplane addresses;

It should be noted that a complex programmable logic device CPLD also needs to be set on the first hard disk backplane, and then the first hard disk backplane obtains the backplane address of each hard disk backplane among the N hard disk backplanes through the CPLD; in addition , since the first hard disk backplane has already been equipped with CPLD and backplane connectors, there is no need to set CPLD and backplane connectors on the other hard disk backplanes in the cascaded hard disk backplane except the first hard disk backplane. .

It should be noted that the backplane addresses corresponding to N hard disk backplanes are unique, that is, each hard disk backplane has a unique backplane address.

Step S22: Through the CPLD, use the backplane connector to send the N backplane addresses to a baseboard management controller (Baseboard Management Controller, referred to as BMC) of the computer motherboard.

That is to say, the first hard disk backplane can use CPLD to send the obtained N backplane addresses to the BMC of the computer motherboard through the backplane connector. Furthermore, through the above method, the computer motherboard can know the backplane address corresponding to each of the N hard disk backplanes.

In an exemplary embodiment: after the backplane connector establishes the communication connection between the computer motherboard and the first hard disk backplane, there are also the following steps S31-S32:

Step S31: Obtain the backplane status information of each of the N hard disk backplanes and the hard disk status information of the hard disk corresponding to each hard disk backplane through the CPLD on the first hard disk backplane, Obtain N backplane status information and N hard disk status information;

It should be noted that the backplane status information includes but is not limited to the temperature information of the hard disk backplane. Each hard disk backplane is equipped with a temperature sensor, which can monitor the temperature information of each hard disk backplane.

It should be noted that the hard disk status information includes but is not limited to whether the hard disk is operating normally, the capacity status of the hard disk, etc.

It should be noted that, except for the first hard disk backplane, the remaining hard disk backplanes among the N hard disk backplanes send the backplane address, backplane status information and hard disk status information to the first hard disk through VPP/SGPIO signals. back panel. Furthermore, the CPLD of the first hard disk backplane can obtain and parse the backplane status information and hard disk status information of different hard disk backplanes through the backplane addresses of different hard disk backplanes, and the main purpose of the parsing process is to obtain to the VPP/SGPIO signal.

Step S32: Through the CPLD, use the backplane connector to send the N pieces of backplane status information and N pieces of hard disk status information to the BMC of the computer motherboard.

That is to say, in this embodiment, the first hard disk backplane can use CPLD to send the acquired N backplane status information and N hard disk status information to the BMC of the computer motherboard through the backplane connector. Furthermore, through the above method, the computer motherboard can know the backplane status information corresponding to each of the N hard disk backplanes and the hard disk status information of the hard disk connected to each hard disk backplane.

As an optional example, the motherboard's BMC can access the hard drive backplane based on the address information of the hard drive backplane, monitor and manage the backplane status of the hard drive backplane and the corresponding hard drive, specifically through the instructions on the backplane. The lights or software interface can monitor the working status of the hard disk in real time and determine whether the hard disk is working normally and whether there are faults and other problems.

In an exemplary embodiment, after the backplane connector establishes the communication connection between the computer motherboard and the first hard disk backplane, there are also the following steps S41-S43:

Step S41: Receive the control command sent by the computer motherboard through the backplane connector on the first hard disk backplane;

Step S42: When the first hard disk backplane determines that the control object of the control instruction is not the hard disk corresponding to the first hard disk backplane, the first board-to-board controller sends a request to the second board-to-board controller. The hard disk backplane forwards the control instructions.

It should be noted that when the second hard disk backplane determines that the control object of the control instruction is not the hard disk corresponding to the second hard disk backplane, it forwards the control instruction to the third hard disk backplane through the second board-to-board controller. Control instruction. That is to say, in this embodiment, when the current hard disk backplane determines that the control object of the control instruction is not the hard disk corresponding to the current hard disk backplane, it forwards the control command to the next hard disk backplane connected to itself.

As an optional example, the current hard disk backplane determines the protocol corresponding to the control command. If the protocol used by the control command is different from the protocol used by its own hard disk, it is determined that the control object of the control command is not corresponding to the current hard disk backplane. harddisk.

Step S43: When the first hard disk backplane determines that the control object of the control instruction is the hard disk corresponding to the first hard disk backplane, control the first hard disk backplane according to the control instruction. The corresponding hard disk is operated.

It should be noted that the control object of the above control instruction can be determined in the board-to-board connector. Furthermore, in this embodiment, through the above method, the computer motherboard can control the cascaded hard disk backplane.

In an exemplary embodiment: after the backplane connector establishes the communication connection between the computer motherboard and the first hard disk backplane, there are also the following steps S51-S54:

Step S51: Obtain the lighting information sent by the BMC of the computer motherboard through the I2C connector on the first hard disk backplane, where the lighting information carries the backplane address of the target hard disk backplane. The information is used to instruct to light the target light-emitting diode of the hard disk corresponding to the target hard disk backplane, and the backplane connector includes the I2C connector;

Step S52: Analyze the lighting information through the CPLD on the first hard disk backplane to determine the backplane address of the target hard disk backplane;

It should be noted that the lighting information is mainly used to indicate the location or error status of the device by lighting the LED light.

Step S53: When the first hard disk backplane determines that the target hard disk backplane is not the first hard disk backplane, use one or more connections between the first hard disk backplane and the target hard disk backplane. A plurality of board-to-board connectors forward the lighting information to the target hard disk backplane to instruct the target hard disk backplane to light the target light-emitting diode of the hard disk corresponding to the target hard disk backplane;

In an exemplary embodiment, when the CPLD on the first hard disk backplane determines through the backplane address carried in the lighting information that the lighting information is not used to control the light-emitting diodes corresponding to its own hard disk, the first hard disk can be The hard disk backplane forwards the lighting information to the second hard disk backplane, and then the second hard disk backplane determines whether it needs to light up the LED corresponding to its own hard disk... until the target hard disk backplane determines to light up the target LED corresponding to its own hard disk. diode.

Step S54: When the first hard disk backplane determines that the target hard disk backplane is the first hard disk backplane, light up the hard disk corresponding to the first hard disk backplane through the first hard disk backplane. target LED.

In this embodiment, through the above steps, the lighting operation of the computer host on the cascaded hard disk backplane is realized.

Obviously, the above-described embodiments are only part of the embodiments of the present invention, rather than all embodiments. In order to better understand the above method, the above process is described below with reference to the examples, but it is not used to limit the technical solutions of the embodiments of the present invention, specifically:

As an optional example, Figure 4 illustrates a topology diagram for cascading N hard disk backplanes using board-to-board connectors, and Figure 5 illustrates a schematic structural diagram of cascaded hard disk backplanes.

As an optional example, when the N hard disk backplanes are SAS hard disk backplanes, SATA hard disk backplanes, and NVME hard disk backplanes, the SAS hard disk backplanes, SATA hard disk backplanes, and NVME hard disk backplanes pass through the board pair. Connect the board connectors into a whole, reserve a special space in the server to place the cascaded hard drive backplane, select only one of the hard drive backplanes, and add CPLD logic chips, MCIO connectors, Slimline connectors, and I2C connections on it connectors, VPP connectors and other devices. These connectors are connected to the motherboard through cables to interact with the motherboard. Other hard disk backplanes transmit PCIe, SAS/SATA, I2C, hard disk status and lighting through board-to-board connectors. signal, which simplifies the backplane design to a certain extent, saves space, and makes the layout more regular.

It should be noted that a unique backplane address can be set for each hard disk backplane. Different hard disk backplanes are connected to an I2C bus of the motherboard through a board-to-board connector. The baseboard management controller of the motherboard can be accessed according to different addresses. The corresponding hard disk backplane monitors and manages the status of different hard disk backplanes (the hard disk backplane can provide hard disk status monitoring and management functions. Through the indicator lights or software interface on the hard disk backplane, the administrator can monitor the working status of the hard disk in real time. For example, whether the hard disk is working normally, whether there are faults or errors, etc.), obtaining the temperature information detected by the thermal sensor of the hard disk backplane, etc. After CPLD obtains different backplane addresses, it can obtain the status information of the SAS/SATA/NVME hard disk and analyze it. VPP/SGPIO signal communicates with the motherboard BMC, analyzes the I2C lighting information sent by the BMC, and lights the Locate/Error LED of the SAS/SATA/NVME hard disk and other functions.

Specifically, this application optimizes and develops the current SAS/SATA/NVME hard drive backplane and server, and designs a board-to-board connector to implement multiple SAS/SATA/NVME hard drive cascade systems, which specifically has the following steps:

Step 1: Select a hard drive backplane from the SAS/SATA/NVME hard drive backplane as the basic backplane. This hard drive backplane needs to support the SAS/SATA/NVME protocol. This hard drive backplane is designed according to the standard backplane, and add CPLD programmable logic devices, MCIO connectors, Slimline connectors, I2C connectors, VPP connectors and other devices are connected to the motherboard through cables and interact with the motherboard for signals.

Step 2: Add board-to-board connectors to each SAS/SATA/NVME backplane. Except for the hard disk backplane selected in the first step, the other backplanes do not need to contain MCIO, Slimline, I2C, VPP, etc. connectors. There is no need to contain a CPLD logic chip, which saves costs to a certain extent. PCIe, SAS/SATA, I2C, hard disk status, lighting and other signals are transmitted through the board-to-board connector. Multiple SAS/SATA/NVME hard drive backplanes are connected into a whole through board-to-board connectors and placed in the space planned for the cascaded hard drive backplane on the server. The layout is more regular and the space utilization rate is higher. It also makes it easier for people to identify each back panel more quickly.

Step 3: Set a unique backplane address for each hard disk backplane. Different hard disk backplanes are connected to an I2C bus of the motherboard through a board-to-board connector. The baseboard management controller of the motherboard can access the corresponding hard disk according to different addresses. Backplane, monitor and manage the status of different hard disk backplanes, obtain temperature information from the hard disk backplane thermal sensor, etc.

Step 4: After CPLD obtains different backplane addresses, it acquires the status information of the SAS/SATA/NVME hard disk, parses the VPP/SGPIO signal, communicates with the motherboard BMC, parses the I2C lighting information issued by the BMC, and analyzes the SAS/SATA/ Functions such as Locate/Error LED lighting of NVME hard disk.

This application optimizes and develops the current SAS/SATA/NVME hard drive backplane and server, and designs a cascading system that uses board-to-board connectors to realize multiple SAS/SATA/NVME hard drives.

Through this design, the following effects can be achieved:

1. The number of hard disk backplanes has been expanded to meet the working conditions of servers that require multiple hard disk backplanes to configure various hard disks.

2. Reduce the use of cables and connectors, and avoid the interlacing of multiple cables. Placing the whole cascaded board-to-board connector in a dedicated location on the server makes the layout more regular and improves space utilization.

3. The hard disk backplane design has been optimized. Only one hard disk backplane needs to be equipped with a CPLD logic chip and MCIO, Slimline, I2C, VPP and other connectors, which saves costs to a certain extent.

4. Different hard disk backplanes are connected to an I2C bus of the motherboard through board-to-board connectors. BMC and CPLD access the corresponding hard disk backplanes according to different addresses, reducing the use of BMC and CPLD pins and avoiding backplane overloading. This often leads to insufficient BMC and CPLD pins.

In short, this application connects multiple SAS/SATA/NVME hard disk backplanes into a whole through board-to-board connectors, and transmits PCIe, SAS/SATA, I2C, hard disk status, lighting and other signals through the board-to-board connectors , only one hard disk backplane is equipped with a CPLD logic chip and MCIO, Slimline, I2C, VPP and other connectors, multiple SAS/SATA/NVME hard disk backplanes are connected into a whole through board-to-board connectors, and placed on the server The planned space specifically for placing the cascade backplane improves the space utilization of the server and reduces the occupation of the motherboard BMC and CPLD pins.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or that contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in various embodiments of this application.

This embodiment also provides a device for establishing a communication connection, which is used to implement the above embodiments and preferred implementations. What has already been described will not be described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

Figure 6 is a structural block diagram of a device for establishing a communication connection according to an embodiment of the present application. As shown in Figure 6, the device includes:

The first establishment module 62 is used to establish the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes through the i-th board-to-board connector when the server has N hard disk backplanes. Communication connections between boards to enable the N hard disk backplanes to achieve serial communication connections, where N is an integer greater than 1, i is an integer greater than or equal to 1, and less than or equal to N-1;

The second establishment module 64 is used to establish a communication connection between the computer motherboard and the first of the N hard disk backplanes through the backplane connector, so as to establish the communication connection between the computer motherboard and the N hard disk backplanes. Communication connection.

Through the above device, when the server has N hard disk backplanes, a connection between the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes is established through the i-th board-to-board connector. Communication connection, and establishing a communication connection between the computer mainboard and the first of the N hard disk backplanes through the backplane connector, so as to establish a communication connection between the computer mainboard and the N hard disk backplanes. Since N hard disk backplanes have been cascaded using board-to-board connectors, only one backplane connector is needed to establish communication connections between N hard disk backplanes and the computer motherboard, solving the problem of different hard disk backplanes passing through When the backplane connector is connected to the computer motherboard, it is easy to cause problems such as complicated cables, limited placement of the hard disk backplane, and difficult space arrangement, thereby reducing the number of cables used to connect the hard disk backplane to the computer motherboard in the server. The effect of use.

In an exemplary embodiment, the second establishment module is also used to set the backplane connector on the first hard disk backplane, wherein the backplane connector includes: microcontroller input and output MCIO connector, Slimline connector, integrated circuit bus I2C connector, virtual parallel port VPP connector; establish the connection relationship between the backplane connector and the computer motherboard to establish the computer motherboard and the first Communication connections to the hard drive backplane.

In an exemplary embodiment, the device further includes: a first processing module configured to, after establishing a communication connection between the computer motherboard and the first hard disk backplane through a backplane connector, The complex programmable logic device CPLD on the hard disk backplane obtains the backplane address of each of the N hard disk backplanes and obtains N backplane addresses; through the CPLD, the backplane connector is used to connect the The N backplane addresses are sent to the baseboard management controller BMC of the computer motherboard.

In an exemplary embodiment, the device further includes: a second processing module configured to, after establishing a communication connection between the computer motherboard and the first hard disk backplane through the backplane connector, The CPLD on the hard disk backplane obtains the backplane status information of each hard disk backplane among the N hard disk backplanes and the hard disk status information of the hard disk corresponding to each hard disk backplane, and obtains N backplane status information and N Hard disk status information; through the CPLD, use the backplane connector to send the N backplane status information and N hard disk status information to the BMC of the computer motherboard.

In an exemplary embodiment, the device further includes: a third processing module configured to, after establishing a communication connection between the computer motherboard and the first hard disk backplane through a backplane connector, The backplane connector on the hard disk backplane receives the control instruction sent by the computer motherboard; it is determined on the first hard disk backplane that the control object of the control instruction is not the hard disk corresponding to the first hard disk backplane. In this case, the control instruction is forwarded to the second hard disk backplane through the first board-to-board controller; the first hard disk backplane determines that the control object of the control instruction is the first hard disk backplane. In the case of a hard disk corresponding to the first hard disk backplane, the hard disk corresponding to the first hard disk backplane is operated according to the control instruction.

In an exemplary embodiment, the device further includes: a fourth processing module, configured to, after establishing a communication connection between the computer motherboard and the first hard disk backplane through the backplane connector, The I2C connector on the hard disk backplane obtains the lighting information sent by the BMC of the computer motherboard, wherein the lighting information carries the backplane address of the target hard disk backplane, and the lighting information is used to instruct the lighting of the target. The target light-emitting diode of the hard disk corresponding to the hard disk backplane, the backplane connector includes the I2C connector; the CPLD on the first hard disk backplane analyzes the lighting information to determine the target hard disk backplane Backplane address; when the first hard disk backplane determines that the target hard disk backplane is not the first hard disk backplane, pass an address between the first hard disk backplane and the target hard disk backplane. or multiple board-to-board connectors forward the lighting information to the target hard disk backplane to instruct the target hard disk backplane to light the target LED of the hard disk corresponding to the target hard disk backplane; in the first hard disk When the backplane determines that the target hard disk backplane is the first hard disk backplane, it lights the target LED of the hard disk corresponding to the first hard disk backplane through the first hard disk backplane.

In an exemplary embodiment, the device further includes: a determining module configured to establish the relationship between the i-th hard disk backplane and the i+1th hard disk backplane among the N hard disk backplanes through the i-th board-to-board connector. Before the communication connection between the boards, the first hard disk backplane is determined from the N hard disk backplanes, wherein the first hard disk backplane supports N transmission protocols, and the N transmission protocols are the The transmission protocol used by N hard disks corresponding to N hard disk backplanes. It should be noted that each of the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but is not limited to this: the above modules are all located in the same processor; or the above modules can be implemented in any combination. The forms are located in different processors.

A computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute the steps in any of the above method embodiments when running.

In an exemplary embodiment, the computer-readable storage medium may include but is not limited to: USB flash drive, read-only memory (ROM), random access memory (Random Access Memory, RAM) , mobile hard disk, magnetic disk or optical disk and other media that can store computer programs.

An embodiment of the present application also provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

In an exemplary embodiment, the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.

For specific examples in this embodiment, reference may be made to the examples described in the above-mentioned embodiments and exemplary implementations, and details will not be described again in this embodiment.

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application can be implemented using general-purpose computing devices, and they can be concentrated on a single computing device, or distributed across a network composed of multiple computing devices. They may be implemented in program code executable by a computing device, such that they may be stored in a storage device for execution by the computing device, and in some cases may be executed in a sequence different from that shown herein. Or the described steps can be implemented by making them into individual integrated circuit modules respectively, or by making multiple modules or steps among them into a single integrated circuit module. As such, the application is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles of this application shall be included in the protection scope of this application.

Claims (10)

1. A method for establishing a communication connection, comprising:

under the condition that the server is provided with N hard disk back plates, establishing communication connection between an ith hard disk back plate and an (i+1) th hard disk back plate in the N hard disk back plates through an ith board-to-board connector so as to realize serial communication connection of the N hard disk back plates, wherein N is an integer greater than 1, and i is an integer greater than or equal to 1 and less than or equal to N-1;

and establishing communication connection between the computer main board and a first hard disk backboard in the N hard disk backboard through a backboard connector so as to establish communication connection between the computer main board and the N hard disk backboard.

2. The method of claim 1, wherein establishing a communication connection of a computer motherboard to the first hard disk backplane via a backplane connector comprises:

and arranging the backboard connector on the first hard disk backboard, wherein the backboard connector comprises the following components: the microcontroller inputs and outputs an MCIO connector, a Slimline connector, an integrated circuit bus I2C connector and a virtual parallel port VPP connector;

And establishing a connection relation between the backboard connector and the computer main board so as to establish communication connection between the computer main board and the first hard disk backboard.

3. The method of claim 1, wherein after establishing a communication connection between a computer motherboard and the first hard disk backplane via a backplane connector, the method further comprises:

acquiring the backboard address of each of the N hard disk backboard through a complex programmable logic device CPLD on the first hard disk backboard to obtain N backboard addresses;

and the CPLD is used for sending the N backboard addresses to a Baseboard Management Controller (BMC) of the computer mainboard by using the backboard connector.

4. The method of claim 1, wherein after establishing a communication connection between a computer motherboard and the first hard disk backplane via a backplane connector, the method further comprises:

acquiring backboard state information of each of the N hard disk backboard and hard disk state information of a hard disk corresponding to each hard disk backboard through the CPLD on the first hard disk backboard, and obtaining N backboard state information and N hard disk state information;

And the CPLD is used for transmitting the N backboard state information and the N hard disk state information to the BMC of the computer main board by using the backboard connector.

5. The method of claim 1, wherein after establishing a communication connection between a computer motherboard and the first hard disk backplane via a backplane connector, the method further comprises:

receiving a control instruction sent by the computer main board through a backboard connector on the first hard disk backboard;

forwarding the control instruction to a second hard disk backboard through a first board-to-board controller under the condition that the first hard disk backboard determines that the control object of the control instruction is not the hard disk corresponding to the first hard disk backboard;

and under the condition that the first hard disk backboard determines that the control object of the control instruction is the hard disk corresponding to the first hard disk backboard, operating the hard disk corresponding to the first hard disk backboard according to the control instruction.

6. The method of claim 1, wherein after establishing a communication connection between a computer motherboard and the first hard disk backplane via a backplane connector, the method further comprises:

Acquiring lighting information sent by the BMC of the computer main board through an I2C connector on the first hard disk backboard, wherein the lighting information carries a backboard address of a target hard disk backboard, the lighting information is used for indicating a target light-emitting diode of a hard disk corresponding to the target hard disk backboard to be lightened, and the backboard connector comprises the I2C connector;

analyzing the lighting information through the CPLD on the first hard disk backboard, and determining the backboard address of the target hard disk backboard;

forwarding the lighting information to the target hard disk backboard through one or more board-to-board connectors between the first hard disk backboard and the target hard disk backboard under the condition that the first hard disk backboard determines that the target hard disk backboard is not the first hard disk backboard, so as to instruct the target hard disk backboard to light a target light-emitting diode of a hard disk corresponding to the target hard disk backboard;

and under the condition that the first hard disk backboard determines that the target hard disk backboard is the first hard disk backboard, the first hard disk backboard is used for lighting the target light-emitting diode of the hard disk corresponding to the first hard disk backboard.

7. The method of claim 1, wherein prior to establishing a communication connection between an i-th hard disk backplane and an i+1-th hard disk backplane of the N hard disk backplanes through the i-th board-to-board connector, the method further comprises:

And determining a first hard disk backboard from the N hard disk backboard, wherein the first hard disk backboard supports N transmission protocols, and the N transmission protocols are used by N hard disks corresponding to the N hard disk backboard.

8. An apparatus for establishing a communication connection, comprising:

the first establishing module is used for establishing communication connection between an ith hard disk backboard and an (i+1) th hard disk backboard in the N hard disk backboard through an ith board-to-board connector under the condition that the server is provided with N hard disk backboard, so that the N hard disk backboard realizes serial communication connection, wherein N is an integer greater than 1, i is an integer greater than or equal to 1 and less than or equal to N-1;

the second establishing module is used for establishing communication connection between the computer main board and a first hard disk backboard in the N hard disk backboard through the backboard connector so as to establish communication connection between the computer main board and the N hard disk backboard.

9. A computer readable storage medium, characterized in that a computer program is stored in the computer readable storage medium, wherein the computer program, when being executed by a processor, implements the steps of the method according to any of the claims 1 to 7.

10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method of any one of claims 1 to 7 when the computer program is executed.