A multi-node server management device and server system

Abstract

The present invention discloses a management device and a server system for a multi-node server, comprising a selection module and N gating control module groups connected to each server in a one-to-one correspondence, wherein N is an integer not less than 2, and the gating control module groups are respectively connected to each selection module, and when receiving a selection signal generated by the server, the selection module sends a control signal generated by the server to the gating control module group corresponding to the selection signal, and the gating control module group sends the control signal to a server common module, and is also used to receive a feedback signal generated by the server common module according to the control signal, and send the feedback signal to the server through the selection module, wherein the server common module includes a fan module, a storage module, and a power module. It can avoid the situation that when any gating control module group fails, the server cannot interact with the server common module, thereby improving the reliability of the multi-node server.

Description

Technical Field

[0001] The present invention relates to the field of server management, and in particular to a management device for a multi-node server and a server system. Background Art

[0002] Multi-node servers are often used in scenarios where multiple servers are managed. A multi-node server includes multiple servers and server-shared modules, such as a power module, a fan cooling module, and a storage module. The server is connected to these modules via a system bus, and the server can interact with these modules, such as querying the remaining amount of storage space in the storage module. In order to better manage each server and the server-shared module, the prior art sets an SMC (System Management Controller) between each server and the server-shared module. The server interacts with the server-shared module via the SMC. For example, the server obtains various information in the power module and the storage module via the SMC, and controls the fan speed of the fan cooling module via the SMC. However, when the SMC fails, the server cannot obtain various information from the power module and the storage module, and the SMC cannot control the fan speed, that is, the server cannot interact with the server-shared module, and there is a problem of low reliability. Summary of the invention

[0003] The purpose of the present invention is to provide a management device and server system for a multi-node server, which can avoid the situation where the server cannot interact with the server shared module when any one of the selection control module groups fails, thereby improving the reliability of the multi-node server.

[0004] In order to solve the above technical problems, the present invention provides a management device for a multi-node server, comprising:

[0005] A selection module connected to each server in a one-to-one correspondence, used for sending a control signal generated by the server corresponding to itself to the gating control module group corresponding to the selection signal when receiving a selection signal generated by the server corresponding to itself;

[0006] There are N selection control module groups, each of which is connected to each selection module respectively. The selection control module groups are used to receive the control signal, send the control signal to the server common module, receive the feedback signal generated by the server common module according to the control signal, and send the feedback signal to the selection module so that the selection module sends the feedback signal to the server corresponding to itself. N is an integer not less than 2.

[0007] Preferably, receiving the control signal and sending the control signal to the server common module includes:

[0008] When no less than two control signals are received at the same time, the control signal generated by the server with the highest priority among the received control signals is sent to the server common module according to the preset priorities of the servers.

[0009] Preferably, receiving the control signal and sending the control signal to the server common module includes:

[0010] When no less than two control signals are received within a preset time period, the control signal received first is sent to the server common module according to the time sequence of receiving the control signals.

[0011] Preferably, the server is connected to the selection module via SMBus.

[0012] Preferably, the selection module is specifically configured to send the control signal generated by the server to the gating control module group corresponding to the gating control module group address when receiving a selection signal containing the gating control module group address generated by the server corresponding to itself.

[0013] Preferably, the selection module is a MUX.

[0014] Preferably, the server common module includes a fan heat dissipation module and / or a power supply module and / or a storage module.

[0015] Preferably, the gating control module group includes:

[0016] A first gating control module;

[0017] a second gating control module connected to the selection modules corresponding to the respective servers in the first server group, respectively, for receiving the control signal sent by the selection module corresponding to the first server group, sending the control signal to the server common module through the first gating control module, and receiving the feedback signal sent by the server common module through the first gating control module, sending the feedback signal to the corresponding selection module, so that the selection module sends the feedback signal to the server with which it drinks, the first server group including a first preset number of servers;

[0018] a third gating control module connected to the selection modules corresponding to the respective servers in the second server group, respectively, for receiving the control signal sent by the selection module corresponding to the second server group, sending the control signal to the server common module through the first gating control module, and receiving the feedback signal sent by the server common module through the first gating control module, sending the feedback signal to the corresponding selection module, so that the selection module sends the feedback signal to the server with which it drinks, and the second server group includes a second preset number of servers;

[0019] The sum of the first preset number and the second preset number is equal to the number of the servers.

[0020] Preferably, when the number of the servers is an even number, the first preset number is equal to the second preset number.

[0021] The present application also provides a server system, including a server common module and a plurality of servers, and also including a management device for the multi-node server as described above;

[0022] The management device of the multi-node server is respectively connected to each of the servers and the server common module;

[0023] Wherein, the server common module includes a fan heat dissipation module and / or a power supply module and / or a storage module.

[0024] The present invention provides a management device and server system for a multi-node server, comprising a selection module and N gating control module groups connected to each server in a one-to-one correspondence, wherein N is an integer not less than 2, and the gating control module groups are respectively connected to each selection module, and when the selection module receives a selection signal generated by a server corresponding to itself, the control signal generated by the server is sent to the gating control module group corresponding to the selection signal, and the gating control module group sends the control signal to a server common module, and the gating control module group is also used to receive a feedback signal generated by the server common module according to the control signal, and send the feedback signal to the server corresponding to the selection module through the selection module, wherein the server common module includes a fan module, a storage module, and a power module. It can avoid the situation that when any gating control module group fails, the server cannot interact with the server common module, thereby improving the reliability of the multi-node server. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of the structure of a multi-node server management device provided by the present invention;

[0027] Figure 2 A schematic diagram of the structure of a multi-node server management device in the prior art;

[0028] Figure 3 A schematic diagram of the structure of another multi-node server management device provided by the present invention;

[0029] Figure 4 A schematic diagram of the structure of a server system provided by the present invention. DETAILED DESCRIPTION

[0030] The core of the present invention is to provide a management device and server system for a multi-node server, which can avoid the situation where the server cannot interact with the server shared module when any one of the selection control module groups fails, thereby improving the reliability of the multi-node server.

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a multi-node server management device provided by the present invention, the device comprising:

[0033] The selection module 11 connected to each server in a one-to-one correspondence is used to send the control signal generated by the server corresponding to itself to the gating control module group 12 corresponding to the selection signal when receiving the selection signal generated by the server corresponding to itself;

[0034] There are N selection control module groups 12, each of which is connected to each selection module 11 respectively. The selection control module group 12 is used to receive a control signal, send the control signal to the server common module 13, and receive a feedback signal generated by the server common module 13 according to the control signal, and send the feedback signal to the selection module 11, so that the selection module 11 sends the feedback signal to the server corresponding to itself, and N is an integer not less than 2.

[0035] In order to improve the reliability of multi-node servers, in the present application, a plurality of selection modules 11 are provided, and the selection modules 11 are connected to each server one-to-one. N selection control module groups 12 are also provided, and each selection control module group 12 is connected to all the selection modules 11, and can receive the control signal sent from each server through the corresponding selection module 11, and send the control signal to the server common module 13.

[0036] It should be noted that a multi-node server is a type of rack-mounted server. A multi-node server is composed of multiple nodes and management units, such as multiple servers and SMCs. In a multi-node server, when a server performs a certain task, it can use the connection relationship between the nodes to offload part of the work to other servers to reduce its own burden. In addition, it can also be used as a server for storing data and can be flexibly applied according to actual conditions. In a multi-node server, each server will share some modules, such as power supply modules, fan cooling modules, and storage modules.

[0037] Considering the low reliability of the existing technology of managing multi-node servers through SMC alone, please refer to Figure 2 , Figure 2 The present invention is a structural diagram of a multi-node server management device in the prior art. In the prior art, all servers and each server common module 13 are connected to the SMC. The server sends a control signal to each server common module 13 through the SMC. The feedback signal generated by the server common module 13 according to the control signal is also sent to the server through the SMC, that is, the SMC is used as the host. Since the server and the server common module 13 are only connected through the SMC, when the SMC fails, it is equivalent to a circuit break between the server and the server common module 13, resulting in the inability to interact with the server and the server common module 13. In addition, the SMC hardware performance specification requirements are high and the cost is also high.

[0038] In the present application, specifically, before generating a control signal, the server will first generate a selection signal. The selection signal can be a manually set signal. Sending the selection signal to the corresponding selection module 11 can enable the selection module 11 to send the control signal to the specified selection control module group 12. For example, when there are two selection control module groups 12, since these two selection control module groups 12 are connected to the selection module 11 corresponding to the server, the server can send a selection signal to the corresponding selection module 11 to allow the selection module 11 to send the control signal to a specified one of the two selection control modules. Since multiple selection control module groups 12 are set, it is equivalent to setting multiple hosts. When any selection control module group 12 fails, the server can send the control signal to the server shared module 13 through other selection control module groups 12, forming a highly available access link.

[0039] The gating control module can also receive a feedback signal generated by the server shared module 13 according to the control signal, and send the feedback signal to the selection module 11 corresponding to the control signal. The selection module 11 sends the feedback signal to the server corresponding to itself. For example, when the server shared module 13 is a storage module, the server wants to query the remaining storage space of the storage module. The server generates a selection signal and sends it to the selection module 11 corresponding to itself, and then generates a control signal containing the query remaining storage space and sends it to the designated gating control module group 12 through the selection module 11. The gating control module group 12 sends the control signal to the storage module. After receiving the control signal, the storage module generates a feedback signal containing the remaining storage space of itself. The gating control module then obtains the feedback signal and sends the feedback signal to the selection module 11. The selection module 11 then sends the feedback signal to the server, that is, the feedback signal is sent to the server through the original path of sending the control signal. The server can know the remaining storage space of the storage module based on the feedback signal.

[0040] In summary, by setting the selection module 11 and N gating control module groups 12 connected to each server in a one-to-one correspondence, the gating control module group 12 is connected to each selection module 11 respectively, and when the selection module 11 receives the selection signal generated by the server corresponding to itself, the control signal generated by the server is sent to the gating control module group 12 corresponding to the selection signal, and the gating control module group 12 sends the control signal to the server common module 13, and the gating control module group 12 is also used to receive the feedback signal generated by the server common module 13 according to the control signal, and send the feedback signal to the server corresponding to the selection module 11 through the selection module 11, wherein the server common module 13 includes a fan module, a storage module and a power module. It can avoid the situation that when any gating control module group 12 fails, the server cannot interact with the server common module 13, thereby improving the reliability of the multi-node server.

[0041] Based on the above embodiments:

[0042] As a preferred embodiment, receiving a control signal and sending the control signal to the server common module 13 includes:

[0043] When no less than two control signals are received at the same time, the control signal generated by the server with the highest priority among the received control signals is sent to the server sharing module 13 according to the preset priorities of the servers.

[0044] In order to avoid the situation where the server shared module 13 receives multiple control signals at the same time and causes logical confusion, in this application, taking into account that in actual situations, there may be multiple servers that simultaneously send control signals to the same selection control module group 12 through their respective corresponding selection modules 11, different priorities are set in advance for each server in each selection control module group 12. When multiple control signals are received, through negotiation of the two control signals, that is, the selection control module group 12 determines the priority corresponding to the servers sending these control signals, and sends the control signal corresponding to the server with the highest priority among these control signals to the server shared module 13. This process can The software is implemented using a preset software protocol. For example, when server A and server B simultaneously send control signals to the same selection control module group 12 through their respective corresponding selection modules 11, the priority of server A is preset to 10 and the priority of server B is preset to 1 in the selection control module group 12. At this time, the selection control module group 12 will send the control signal sent by server A to the server common module 13. When server A ends the interaction with the server common module 13, the selection control module group 12 will send the control signal of server B to the server common module 13 to avoid the situation where the server common module 13 receives multiple control signals at the same time and causes logical confusion.

[0045] As a preferred embodiment, receiving a control signal and sending the control signal to the server common module 13 includes:

[0046] When no less than two control signals are received within a preset time period, the control signal received first is sent to the server common module 13 according to the time sequence of receiving the control signals.

[0047] In order to avoid the situation where the server shared module 13 receives multiple control signals at the same time and causes logical confusion, in the present application, it is taken into consideration that in actual situations, there may be multiple servers that simultaneously send control signals to the same selection module group 12 through their corresponding selection modules 11. However, due to the differences in the transmission speed of the wire and the response speed of the selection module 11, the time for the selection control module group 12 to receive the control signals sent by each server will always have a sequence. For example, the time interval between receiving each control signal may be several milliseconds or longer. The selection control module group 12 can send the first received control signal to the server shared module 13 according to the sequence in which the control signals are received within a preset time period. When the first received control signal is sent or the server ends the interaction with the server shared module 13, the selection control module group 12 sends the second received control signal to the server shared module 13. The preset time period can be a very short time period. The selection control module group 12 can periodically detect the sequence of each control signal received. Since only the first received control signal is sent to the server shared module 13, the server shared module 13 is prevented from receiving multiple control signals at the same time and causing logical confusion.

[0048] As a preferred embodiment, each server is connected to a one-to-one corresponding selection module 11 via SMBus.

[0049] In order to reduce the cost of wires and the complexity of the lines, in this application, considering that multiple signals need to be transmitted between the server and the selection module 11 corresponding to itself, the selection module 11 will send the control signal to the selection signal corresponding to the selection signal. The selection module 11 will also obtain the feedback signal sent by the selection control module group 12 and send the feedback signal to the server, and the SMBus (System Management Bus) The system management bus (SMB) includes three types of buses, namely, a data bus, an address bus and a control bus, wherein the data bus is used to transmit data information. For example, when the selection module 11 receives a feedback signal, the feedback signal can be sent to the server through the data bus so that the staff can view it; the address bus is used to transmit address signals. For example, when the server wants to query the address of a hard disk in the storage module belonging to the server common module 13, the address signal can be sent to the selection module 11 through the address bus, so that the selection module 11 sends the address signal to the selection control module group 12, and the selection control module group 12 sends it to the storage module; the control bus is used to transmit signals related to action control. For example, when the selection module 11 is connected to multiple selection control module groups 12, the server can send a signal containing a specified selection control module group 12, that is, a selection signal, to the selection module 11 through the control bus, and the selection module 11 can know that the control signal needs to be sent to the specified selection control module group 12. Each server is connected to a one-to-one selection module 11 through a system bus. In addition, SMBus can be used to connect the selection module and the selection control module group, the internal connections of the selection control module group itself, and the selection control module group and the server common module. The functions of three buses are realized through one bus, which not only saves the cost of using multiple wires, but also reduces the complexity of the line.

[0050] As a preferred embodiment, the selection module 11 is specifically used to send the control signal generated by the server to the selection control module group 12 corresponding to the address of the selection control module group 12 when receiving the selection signal containing the address of the selection control module group 12 generated by the server corresponding to itself.

[0051] In order to send the control signal to the selection signal corresponding to the selection control module group 12, in the present application, considering that each selection control module group 12 is connected to each selection module 11, the selection control module group 12 corresponding to the selection signal can be determined by the address of each selection control module group 12. Specifically, the addresses of each gate control module group 12 connected to the selection module 11 can be defined in advance. During actual working conditions, the selection module 11 can determine the gate control module group 12 corresponding to the selection signal according to the address definition of each gate control module group 12. For example, when there are two gate control module groups 12, the addresses of these two gate control module groups 12 are defined in advance as #A123 and #A222, respectively. When the server wants to send a control signal to the server common module 13 through the gate control module corresponding to the address #A222, the server sends a selection signal containing the address #A222 to the selection module 11. After receiving the selection signal, the selection module 11 can determine the specified gate control module group 12 according to the address in the selection signal, and then send the control signal to the gate control module group 12 corresponding to the address #A222.

[0052] As a preferred embodiment, the selection module 11 is a MUX.

[0053] In order to select any one of the gating control module groups 12 connected to the selection module 11 according to the selection signal sent by the server, in the present application, the selection module 11 is a MUX (Multiplexer, data selector), and the MU can be a multiplexer or a multi-way switch, such as a 2-to-1 multiplexer or a 4-to-1 data selector, etc. The present application does not limit the MUX actually used. The MUX is easy to control and has a fast response. It can quickly receive the selection signal of the server and quickly send the control signal to the gating control module group 12 corresponding to the selection signal according to the selection signal. In addition, the MUX has the advantages of small size and low power consumption.

[0054] As a preferred embodiment, the server common module 13 includes a fan heat dissipation module and / or a power supply module and / or a storage module.

[0055] Taking into account the needs of power supply, heat dissipation and data storage for each server, in the present application, the server common module 13 includes a fan heat dissipation module and / or a power supply module and / or a storage module, wherein the fan heat dissipation module is a module for dissipating heat for each server, such as a fan wall or air conditioning module; the power supply module is a module for supplying power to each server, such as a PSU (Power Supply Unit); the storage module is a module that provides storage space for each server, such as a storage backplane control unit, and the storage backplane control unit is connected to a hard disk or other storage medium.

[0056] As a preferred embodiment, the gating control module group 12 includes:

[0057] A first gating control module 121;

[0058] The second gating control module 122 is respectively connected to the selection modules 11 corresponding to each server in the first server group, and is used to receive the control signal sent by the selection module 11 corresponding to the first server group, send the control signal to the server common module 13 through the first gating control module 121, and receive the feedback signal sent by the server common module 13 through the first gating control module 121, and send the feedback signal to the corresponding selection module 11, so that the selection module 11 sends the feedback signal to the server with which it drinks. The first server group includes a first preset number of servers;

[0059] The third gating control module 123 is respectively connected to the selection modules 11 corresponding to each server in the second server group, and is used to receive the control signal sent by the selection module 11 corresponding to the second server group, send the control signal to the server common module 13 through the first gating control module 121, and receive the feedback signal sent by the server common module 13 through the first gating control module 121, and send the feedback signal to the corresponding selection module 11, so that the selection module 11 sends the feedback signal to the server with which it drinks. The second server group includes a second preset number of servers;

[0060] The sum of the first preset number and the second preset number is equal to the number of servers.

[0061] In order to improve the availability of the gate control module group 12, in the present application, the gate control module group 12 includes a first gate control module 121, a second gate control module 122 and a third gate control module 123, please refer to Figure 3 , Figure 3A structural schematic diagram of another multi-node server management device provided by the present invention, the second selection control module 122 and the third selection control module 123 can be connected to the selection modules 11 corresponding to different numbers of servers, the first server group includes a first preset number of servers, and the selection modules 11 corresponding to these servers are all connected to the second selection control module 122, the second server group includes a second preset number of servers, and the selection modules 11 corresponding to these servers are all connected to the third selection control module 123, because the sum of the first preset number and the second preset number is equal to the total number of all servers, all servers can send control signals to the selection control module group 12 through the selection modules 11 corresponding to themselves. In addition, depending on the different selection control modules actually used, the number of selection modules 11 that the selection control module can connect to is also different. When the selection control module can connect to many selection modules 11, the second selection control module 122 and the third selection control module 123 can be connected to the same selection module 11, that is, the sum of the first preset number and the second preset number can be greater than the number of servers and less than twice the number of servers, so that when any one of the second selection control module 122 or the third selection control module 123 fails, the selection module 11 can also send the control signal to the first selection control module 121 through another selection control module.

[0062] In addition, each gating control module may be a PCA9541 chip or other modules capable of realizing the gating control module function. The present application does not limit the type of gating control module actually used.

[0063] As a preferred embodiment, when the number of servers is an even number, the first preset number and the second preset number are equal.

[0064] In order to reduce the load of the gate control module, in the present application, when the number of servers is an even number, the first preset number and the second preset number are equal, that is, the second gate control module 122 is connected to the selection module 11 corresponding to half of the number of servers, and the third gate control module 123 is connected to the selection module 11 corresponding to the remaining half of the number of servers, and the gate control module group 12 where the second gate control module 122 and the third gate control module 123 are located can be connected to all the selection modules 11, so that the load of the second gate control module 122 and the third gate control module 123 is relatively even, and the load of one of the gate control modules will not be too large. In addition, when the number of servers is an odd number, one of the servers can be connected to any one of the second gate control module 122 and the third gate control module 123, and the remaining servers are evenly divided into two server groups and connected to the second gate control module 122 or the third gate control module 123 respectively, so as to reduce the load of the gate control module.

[0065] Please refer to Figure 4 , Figure 4 A schematic diagram of the structure of a server system provided by the present invention includes a server common module 23 and a server 21, and also includes a management device 22 of the multi-node server as described above;

[0066] The server 21, the multi-node server management device 22 and the server common module 23 are connected in sequence.

[0067] For a detailed introduction to a server system provided by the present invention, please refer to the embodiment of the management device for a multi-node server mentioned above, and this application will not go into details therein.

[0068] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0069] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A management device for a multi-node server, characterized in that: include: A selection module connected to each server in a one-to-one correspondence, used for sending a control signal generated by the server corresponding to itself to the gating control module group corresponding to the selection signal when receiving a selection signal generated by the server corresponding to itself; N gating control module groups, each of which is connected to each of the selection modules respectively, and is used to receive the control signal, send the control signal to the server common module, receive the feedback signal generated by the server common module according to the control signal, and send the feedback signal to the selection module, so that the selection module sends the feedback signal to the server corresponding to itself, and N is an integer not less than 2; Correspondingly, the gating control module group includes: A first gating control module; a second gating control module connected to the selection modules corresponding to the respective servers in the first server group, respectively, for receiving the control signal sent by the selection module corresponding to the first server group, sending the control signal to the server common module through the first gating control module, and receiving the feedback signal sent by the server common module through the first gating control module, sending the feedback signal to the corresponding selection module, so that the selection module sends the feedback signal to the server with which it drinks, the first server group including a first preset number of servers; a third gating control module connected to the selection modules corresponding to the respective servers in the second server group, respectively, for receiving the control signal sent by the selection module corresponding to the second server group, sending the control signal to the server common module through the first gating control module, and receiving the feedback signal sent by the server common module through the first gating control module, sending the feedback signal to the corresponding selection module, so that the selection module sends the feedback signal to the server with which it drinks, and the second server group includes a second preset number of servers; The sum of the first preset number and the second preset number is equal to the number of the servers.

2. The multi-node server management device according to claim 1, characterized in that: Receiving the control signal and sending the control signal to the server common module includes: When no less than two control signals are received at the same time, the control signal generated by the server with the highest priority among the received control signals is sent to the server common module according to the preset priorities of the servers.

3. The multi-node server management device according to claim 1, characterized in that: Receiving the control signal and sending the control signal to the server common module includes: When no less than two control signals are received within a preset time period, the control signal received first is sent to the server common module according to the time sequence of receiving the control signals.

4. The multi-node server management device according to claim 1, characterized in that: The server is connected to the selection module via SMBus.

5. The multi-node server management device according to claim 1, characterized in that: The selection module is specifically configured to send the control signal generated by the server to the gate control module group corresponding to the gate control module group address when receiving a selection signal containing the gate control module group address generated by the server corresponding to itself.

6. The multi-node server management device according to claim 1, characterized in that: The selection module is a MUX.

7. The multi-node server management device according to claim 1, characterized in that: The server common module includes a fan heat dissipation module and / or a power supply module and / or a storage module.

8. The multi-node server management device according to claim 1, characterized in that: When the number of the servers is an even number, the first preset number is equal to the second preset number.

9. A server system, characterized in that: It comprises a server common module and a plurality of servers, and also comprises a management device for a multi-node server as claimed in any one of claims 1 to 8; The management device of the multi-node server is respectively connected to each of the servers and the server common module; Wherein, the server common module includes a fan heat dissipation module and / or a power supply module and / or a storage module.

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