JP2021144661A - Configuration identification device, information processing system, and configuration identification method - Google Patents

Abstract

To provide a configuration identification device, an information processing system, and a configuration identification method that facilitate maintenance operation.SOLUTION: A cooling mechanism control part 14 lets, in test operation, a cooling control unit 2 adjust, in each of a plurality of immersion tanks 3, liquid temperatures of liquid refrigerants reserved in the plurality of immersion tanks 3 respectively with a test upper-limit value higher than an upper-limit value in normal operation. A fault notice reception part 16 receives notice from one or a plurality of servers 4 stored in the plurality of immersion tanks 3 respectively and cooled with the liquid refrigerant when temperatures of the servers 4 reach a temperature threshold or higher. A system configuration information generation part acquires identification information on the server 4 which has sent the notice from the notice acquired by the fault notice reception part 16.SELECTED DRAWING: Figure 3

Description

The present invention relates to a configuration identification device, an information processing system, and a configuration identification method.

In an information processing device such as a server, heat is generated by a CPU (Central Processing Unit) or the like. In an information processing device, various members such as a CPU and a disk may be damaged due to heat generation of the own device or a temperature rise due to an external environment. In this respect, in a large information processing device such as a server, cooling has been performed relatively effectively because there is a margin in space. However, with the recent improvement in CPU performance, the amount of heat generated by the CPU tends to increase. Therefore, there is an urgent need to take measures against heat generation in information processing devices.

Therefore, a liquid immersion system has been proposed in which the entire information processing apparatus is efficiently cooled by immersing the information processing apparatus in a liquid having high heat transfer characteristics and insulating properties. In the liquid immersion system, the heat generated by the information processing device is not discharged into the room, so it is not necessary to install air conditioning equipment such as a server room, and it is not necessary to install a cooling fan built in the server, which saves power consumption. It is possible to realize space saving and space saving.

The immersion system is provided with an immersion tank for immersing the information processing device in the liquid, and is further provided with a cooling control device for controlling the temperature of the immersion tank. Generally, a plurality of information processing devices are stored in one immersion tank. In addition, one cooling control device manages one or more immersion tanks. In such an immersion system, when a failure occurs in an information processing device, a immersion tank, a cooling control device, or the like immersed in liquid, maintenance work such as repair or replacement is performed by identifying the faulty part.

The maintenance method for such an immersion system is different from the maintenance method for a conventional air cooling system. When multiple information processing devices are arranged side by side, the administrator can check the information processing devices to be maintained by turning on the indicator lamp arranged in front of the information processing devices to be maintained in the air cooling system. Met. Therefore, even if the information processing devices are arranged differently from the shipping information, it is easy to identify the target information processing device to be maintained by turning on the indicator lamp.

As a technology for dealing with failures when using the liquid cooling method, elements are arranged in a matrix on the substrate, each row is cooled with a liquid refrigerant, and the temperature of the element is monitored for each row to cause an abnormality. In some cases, there is a prior art for storing the position of the element. In addition, a plurality of barriers are provided in the immersion tank to form a storage unit, and one electronic device is stored in each storage unit, and a temperature sensor provided in the peripheral portion of each electronic device detects temperature or higher. If this happens, there is a prior art that stops the operation of the corresponding electronic device.

Japanese Unexamined Patent Publication No. 7-146188 International Publication No. 2016/088280

However, when the information processing device is immersed in the immersion tank, it is difficult to check the indicator lamp even if the indicator lamp is turned on. It is conceivable to acquire the identification number of the failed information processing device and identify the failed information processing device from the system configuration information provided at the time of shipment, but the system configuration information and the actual arrangement of the information processing device are different. It may be, and it is difficult to confirm it. Therefore, it is difficult to identify the information processing device in which the failure has occurred from the information processing devices immersed in the immersion tank by using the indicator lamp and the configuration information at the time of shipment.

Further, since it is difficult to confirm the difference between the system configuration information provided at the time of shipment and the actual arrangement of the information processing devices, it is also difficult to identify the information processing devices stored in each immersion tank. For example, when a failure occurs in the cooling control device, the power of the information processing device stored in the immersion tank controlled by the cooling control device is turned off to perform maintenance work. Further, when a failure occurs in the immersion tank, the power of the information processing device stored in the immersion tank is turned off and maintenance work is performed. In this way, the power of the information processing device is turned off in various maintenance work, but if the information processing device stored in each immersion tank cannot be accurately identified, the power of the wrong information processing device will be turned off. Problems that affect operations such as these occur, making it difficult to perform correct maintenance work. If the information processing device breaks down, the information processing device is taken out of the immersion tank and maintenance work is performed. In this case, it is difficult to identify and take out the failed information processing device unless it is known in which immersion tank the failed information processing device is stored.

The disclosed technique has been made in view of the above, and an object of the present invention is to provide a configuration identification device, an information processing system, and a configuration identification method that facilitate maintenance work.

In one aspect of the configuration identification device, the information processing system, and the configuration identification method disclosed in the present application, the immersion tank management unit is higher than the upper limit value in the normal operation for each of the plurality of immersion tanks during the test operation. The cooling control device is made to adjust the liquid temperature of the liquid refrigerant stored in the immersion tank at the upper limit value for testing. The notification acquisition unit notifies when the temperature of the information processing device exceeds the temperature threshold from one or more information processing devices stored in each of the plurality of immersion tanks and cooled by the liquid refrigerant. receive. The configuration information generation unit acquires the identification information of the information processing device that has given the notification based on the notification acquired by the previous notification acquisition unit.

On one side, the present invention can facilitate maintenance work.

FIG. 1 is a configuration diagram of an information processing system according to an embodiment. FIG. 2 is a diagram showing details of the cooling control unit. FIG. 3 is a block diagram of an information processing system according to an embodiment. FIG. 4 is a diagram of an example of management information held by the cooling control unit. FIG. 5 is a diagram of an example of management information held by the immersion tank. FIG. 6 is a diagram of an example of management information held by the server to be managed. FIG. 7 is a diagram showing an example of a notification format of pseudo failure information. FIG. 8 is a diagram showing an example of shipping information. FIG. 9 is a diagram showing an example of system configuration information. FIG. 10 is a diagram showing an example of server storage maximum number information. FIG. 11A is a flowchart (1) of the configuration confirmation test process. FIG. 11B is a flowchart (2) of the configuration confirmation test process. FIG. 12 is a hardware configuration diagram of the management server.

Hereinafter, examples of the configuration identification device, the information processing system, and the configuration identification method disclosed in the present application will be described in detail with reference to the drawings. The configuration identification device, the information processing system, and the configuration identification method disclosed in the present application are not limited by the following examples.

FIG. 1 is a configuration diagram of an information processing system according to an embodiment. The information processing system 100 includes a management server 1 and an immersion system 5.

The immersion system 5 has a plurality of immersion tanks 3. Further, one or a plurality of servers 4 are stored in each immersion tank 3 of the immersion system 5. In this embodiment, four servers 4 are stored in each immersion tank 3. Further, the immersion system 5 has a plurality of cooling control units 2 that manage one or a plurality of immersion tanks 3. In this embodiment, each cooling control unit 2 manages two immersion tanks 3.

The management server 1 is connected to each cooling control unit 2 and each server 4 via a management network 6. The management server 1 manages the operation of each cooling control unit 2 and the operation of each server 4.

The liquid refrigerant 300 is injected into the immersion tank 3. The server 4 is stored in the immersion tank 3 in a state of being immersed in the liquid refrigerant 300 injected into the immersion tank 3. The server 4 submerged in the liquid refrigerant 300 is cooled by the liquid refrigerant 300. The server 4 has a temperature sensor that measures the temperature of its own device. Then, when the measured temperature of the temperature sensor exceeds the temperature threshold value designated by the management server 1, the server 4 notifies the management server 1 of a warning or the like.

The cooling control unit 2 controls the liquid temperature of the liquid refrigerant 300 in the immersion tank 3 under control. In the following, the immersion tank 3 managed by the cooling control unit 2 may be referred to as the immersion tank 3 connected to the cooling control unit 2. The cooling control unit 2 adjusts the liquid temperature to be equal to or lower than the upper limit value by circulating the liquid refrigerant 300 of the connected immersion tank 3. This cooling control unit 2 corresponds to an example of a “cooling control device”.

FIG. 2 is a diagram showing details of the cooling control unit. The cooling control unit 2 has a control board 200 and a heat exchanger 203. Further, the chiller 210 is arranged as a device for circulating cooling water. The chiller 210 holds the cooling water 211.

The heat exchanger 203 is connected to a pipe 301 extending from the immersion tank 3 and a pipe 220 extending from the chiller 210. The pipe 301 is provided with a pump 204 and a flow rate switch 205. Further, the pipe 301 is provided with temperature sensors 32 and 33. Further, the pipe 220 is provided with a flow rate switch 222 and an electric valve 223. Further, the pipe 220 is provided with a temperature sensor 221 and a temperature sensor 224. The heat exchanger 203 cools the liquid refrigerant 300 by causing the cooling water 211 flowing through the pipe 220 to take the heat of the liquid refrigerant 300 flowing through the pipe 301.

The control board 200 has a CPU 201 and a memory 202. The memory 202 holds the upper limit of the temperature of the liquid refrigerant 300.

The CPU 201 drives the pump 204 to flow the liquid refrigerant 300 through the pipe 301. Then, the CPU 201 controls the flow rate of the liquid refrigerant 300 by using the pump 204 and the flow rate switch 205. Further, the CPU 201 drives the flow rate switch 222 and the electric valve 223 to control the flow rate of the cooling water 211 to the pipe 220.

The CPU 201 acquires information on the water level of the liquid refrigerant 300 in the immersion tank 3 from the water level sensor 31. Further, the CPU 201 acquires the temperature of the liquid refrigerant flowing through the pipe 301 from the immersion tank 3 toward the heat exchanger 203 from the temperature sensor 32. Further, the CPU 201 acquires the temperature of the liquid refrigerant flowing through the pipe 301 from the heat exchanger 203 toward the immersion tank 3 from the temperature sensor 33.

Further, the CPU 201 acquires the temperature of the liquid refrigerant flowing through the pipe 220 from the chiller 210 toward the heat exchanger 203 from the temperature sensor 221. Further, the CPU 201 acquires the temperature of the liquid refrigerant flowing through the pipe 301 from the heat exchanger 203 toward the immersion tank 3 from the temperature sensor 224.

Then, the CPU 201 uses the temperature measured by the temperature sensors 32, 33, 221 and 224 so that the temperature of the liquid refrigerant 300 in the immersion tank 3 becomes equal to or less than the upper limit value of the pump 204, the flow rate switch 205, and the flow rate switch. It controls 222 and the electric valve 223.

Next, the configuration identification function of the management server 1 according to the embodiment will be described with reference to FIG. FIG. 3 is a block diagram of an information processing system according to an embodiment. In FIG. 3, the immersion tank 3 and the server 4 are described separately for the sake of clarity. However, in reality, the server 4 is stored in the immersion tank 3 in a state of being immersed in the liquid refrigerant 300 as shown in FIG. Further, although there are a plurality of immersion tanks 3 and servers 4 arranged in the information processing system 100, since they all have the same function, one immersion tank 3 and one server 4 will be used here. I do.

The cooling control unit 2 includes a cooling control unit 21, a failure notification unit 22, and an immersion tank monitoring unit 23. These functions are realized by the CPU 201 and the memory 202 of FIG.

Here, the cooling control unit 2 holds the management information 501 of the cooling control unit 2 shown in FIG. FIG. 4 is a diagram of an example of management information held by the cooling control unit. The identification information of the cooling control unit 2 is registered in the management information 501. Further, in the management information 501, the number of connectable tanks representing the number of immersion tanks 3 that can be managed by the cooling control unit 2 is registered.

Further, the information of the connected immersion tank 3 is registered in the management information 501. The information of the immersion tank 3 registered in the management information 501 includes identification information and state information of each immersion tank 3. Further, the control liquid temperature, the liquid temperature caution threshold value, and the liquid temperature warning threshold value are registered in the information of the immersion tank 3 registered in the management information 501. The control liquid temperature is an upper limit value when the cooling control unit 21 adjusts the liquid temperature of the liquid refrigerant 300. The initial value of the control liquid temperature is set to, for example, 40 ° C. The liquid temperature caution threshold is a threshold for outputting caution information when the liquid temperature of the liquid refrigerant 300 exceeds this value. The liquid temperature warning threshold is a threshold for outputting warning information when the liquid temperature of the liquid refrigerant 300 exceeds this value. This management information 501 can also be acquired by the cooling mechanism control unit 14 of the management server 1.

The explanation will be continued by returning to FIG. The immersion tank monitoring unit 23 acquires environmental information regarding the immersion tank 3. For example, the immersion tank monitoring unit 23 acquires the measured temperature information from the temperature sensors 32, 33, 221 and 224 shown in FIG. In addition, the immersion tank monitoring unit 23 acquires the water level information of the liquid refrigerant 300 from the water level sensor 31 shown in FIG. Then, the immersion tank monitoring unit 23 outputs the collected environmental information regarding the immersion tank 3 to the environment information collection unit 15 of the management server 1. Further, the immersion tank monitoring unit 23 outputs the measured temperature information acquired from the temperature sensors 32, 33, 221 and 224 to the cooling control unit 21. Further, the immersion tank monitoring unit 23 outputs the measured temperature of the temperature sensor 32 to the failure notification unit 22 as the temperature of the liquid refrigerant 300.

The cooling control unit 21 controls the flow rate of the liquid refrigerant 300 flowing through the pipe 301 using the pump 204 and the flow rate switch 205 in FIG. 2, and the cooling water 211 flowing through the pipe 220 using the flow rate switch 222 and the electric valve 223. Control the flow rate of. As a result, the cooling control unit 21 adjusts the temperature of the liquid refrigerant 300 for each of the immersion tanks 3 under control. The operation of the cooling control unit 21 will be described in more detail.

The cooling control unit 21 receives an instruction to start operation from the cooling mechanism control unit 14 of the management server 1. Further, the cooling control unit 21 receives input of the measured temperature information by the temperature sensors 32, 33, 221 and 224 from the immersion tank monitoring unit 23. Then, the cooling control unit 21 uses the acquired measurement temperature information to set the temperature of the liquid refrigerant 300 for each immersion tank 3 under control with the initial value of the control liquid temperature registered in the management information 501 as the upper limit. adjust. The initial value of this control liquid temperature corresponds to an example of "upper limit value during normal operation".

Further, in the case of the configuration confirmation test, the cooling control unit 21 receives the input of the cooling temperature threshold value for pseudo failure from the cooling mechanism control unit 14. Next, the cooling control unit 21 receives an instruction from the cooling mechanism control unit 14 to change the setting of the control liquid temperature for one immersion tank 3 to be tested among the connected immersion tanks 3. Then, the cooling control unit 21 changes the control liquid temperature of the immersion tank 3 to be tested in the management information 501 to a cooling temperature threshold value for pseudo-failure higher than the initial value. The cooling control unit 21 according to this embodiment changes the control liquid temperature from the initial value of 40 ° C. to the pseudo-failure cooling temperature threshold value of 50 ° C. By changing the control liquid temperature in this way, the liquid temperature of the liquid refrigerant 300 stored in the immersion tank 3 to be tested rises, and the CPU temperature of the server 4 stored in the immersion tank 3 to be tested rises. Is likely to rise. This pseudo-failure cooling temperature threshold corresponds to an example of the "upper limit value for testing".

The cooling control unit 21 uses the acquired measurement temperature information, and the cooling control unit 21 uses the acquired cooling temperature information to set the cooling temperature threshold value for pseudo-failure of the control liquid temperature registered in the management information 501 as an upper limit value, and the immersion tank 3 to be tested. The liquid temperature of each liquid refrigerant 300 is adjusted. After that, the cooling control unit 21 receives the cancellation of the setting change of the control liquid temperature of the immersion tank 3 to be tested from the cooling mechanism control unit 14. Then, the cooling control unit 21 returns the control liquid temperature of the immersion tank 3 to be tested in the management information 501 to the initial value. After that, the cooling control unit 21 returns the adjustment of the liquid temperature of the liquid refrigerant 300 in the immersion tank 3 whose setting change has been canceled to the adjustment with the initial value of the control liquid temperature registered in the management information 501 as the upper limit value. ..

The failure notification unit 22 receives input of information on the liquid temperature of the liquid refrigerant 300 in each connected immersion tank 3 from the immersion tank monitoring unit 23. Then, the failure notification unit 22 compares the liquid temperature of the liquid refrigerant 300 in each liquid immersion tank 3 with the liquid temperature caution threshold value and the liquid temperature warning threshold value with reference to the management information 501. When there is an immersion tank 3 in which the liquid temperature of the liquid refrigerant 300 is equal to or higher than the liquid temperature caution threshold value, the failure notification unit 22 transmits caution information about the immersion tank 3 to the failure notification receiving unit 16 of the management server 1. When there is an immersion tank 3 in which the liquid temperature of the liquid refrigerant 300 is equal to or higher than the liquid temperature warning threshold value, the failure notification unit 22 transmits warning information about the immersion tank 3 to the failure notification receiving unit 16 of the management server 1. ..

The immersion tank 3 stores the injected liquid refrigerant 300. Further, the immersion tank 3 stores the server 4 submerged in the stored liquid refrigerant 300. Further, the immersion tank 3 is provided with a water level sensor 31 shown in FIG. 2 and a sensor 30 including temperature sensors 32 and 33 and the like. Further, the immersion tank 3 has a storage area and holds the management information 502 regarding the immersion tank 3 shown in FIG. 5 created based on the measurement information by the sensor 30. FIG. 5 is a diagram of an example of management information held by the immersion tank.

The identification information of the immersion tank 3 is registered in the management information 502. Further, in the management information 502, information on the water level and the liquid temperature of the liquid refrigerant 300 acquired by the water level sensor 31 and the temperature sensor 32 of FIG. 2 attached to the immersion tank 3 is registered. This management information 501 can also be acquired by the immersion tank monitoring unit 23 of the cooling control unit 2.

The explanation will be continued by returning to FIG. The server 4, which is an information processing device, has a monitoring unit 41, a calculation execution unit 42, a failure notification unit 43, and a system control unit 44. Further, the server 4 has management information 503 regarding the server 4 shown in FIG. FIG. 6 is a diagram of an example of management information held by the server to be managed.

The identification information of the server 4 is registered in the management information 503. Further, in the management information 503, execution information indicating the operating state of the server 4 is registered. The start status column in the management information 503 is information indicating whether or not the server 4 is running. The column of the test program in the management information 503 is information indicating whether or not the test program is being executed on the server 4. The pseudo-failure mode in the management information 503 is information indicating whether or not the pseudo-failure mode is valid in the server 4. Further, in the management information 503, the warning temperature, the caution temperature and the temperature for pseudo failure are registered. The warning temperature is a threshold value for outputting warning information when the CPU temperature exceeds this value. Further, the caution temperature is a threshold value for outputting caution information when the CPU temperature exceeds this value. This caution temperature corresponds to an example of the "first temperature". The pseudo-failure temperature is a temperature for generating a pseudo-failure during operation in the pseudo-failure mode and outputting a pseudo-failure notification, and is a temperature lower than the warning temperature and the caution temperature. This pseudo failure temperature corresponds to an example of the "second temperature". This management information 503 can also be acquired by the cooling mechanism control unit 14 of the management server 1.

The explanation will be continued by returning to FIG. The monitoring unit 41 acquires environmental information about the server 4 including the CPU temperature measured by a temperature sensor arranged in the vicinity of the CPU mounted on the server 4. Then, the monitoring unit 41 transmits the acquired environment information regarding the server 4 to the environment information collecting unit 15 of the management server 1. Further, the monitoring unit 41 outputs the CPU temperature to the failure notification unit 43.

The calculation execution unit 42 executes various programs and performs a calculation. Further, the calculation execution unit 42 receives an execution instruction of the test program from the server control unit 17 of the management server 1. Then, the calculation execution unit 42 executes the test program. The test program is a program for raising the CPU temperature by causing the CPU to perform processing and applying a load. The calculation execution unit 42 rewrites the information in the test program column of the management information 503 during execution at the start of execution of the test program. After that, when the instruction to stop the execution of the test program is received from the server control unit 17, the calculation execution unit 42 rewrites the information in the test program column of the management information 503 to stop, and stops the execution of the test program.

The system control unit 44 has a processor independent of the CPU of the server 4. When the system control unit 44 receives the start command of the server 4 from the server control unit 17 of the management server 1, the system control unit 44 powers on the server 4. Further, when the system control unit 44 receives the shutdown command from the server control unit 17, the system control unit 44 powers off the server 4.

The failure notification unit 43 receives the CPU temperature input from the monitoring unit 41. Then, in the normal mode, the failure notification unit 43 refers to the management information 503 and compares the CPU temperature with the caution temperature and the warning temperature. When the CPU temperature is equal to or higher than the caution temperature, the failure notification unit 43 outputs the caution information to the failure notification receiving unit 16 of the management server 1. When the CPU temperature is equal to or higher than the warning temperature, the failure notification unit 43 outputs the warning information to the failure notification receiving unit 16 of the management server 1.

Further, the failure notification unit 43 receives an instruction to switch the mode to the normal mode from the server control unit 17. Then, the failure notification unit 43 effectively sets the information in the pseudo-failure mode column in the management information 503, and sets the pseudo-failure mode in the server 4. Then, after the pseudo-failure mode is set, the failure notification unit 43 compares the pseudo-failure temperature with the CPU temperature, and when the CPU temperature becomes equal to or higher than the pseudo-failure temperature, provides the pseudo-failure information 504 shown in FIG. It is transmitted to the failure notification receiving unit 16 of the management server 1. FIG. 7 is a diagram showing an example of a notification format of pseudo failure information. After that, the failure notification unit 43 receives the release instruction of the pseudo failure mode setting from the server control unit 17. In that case, the failure notification unit 43 sets the information in the pseudo-failure mode column in the management information 503 to be invalid, cancels the pseudo-failure mode, and shifts the server 4 to the normal mode. After that, the failure notification unit 43 notifies the failure using the caution temperature and the warning temperature.

The management server 1 includes a storage unit 11, a system configuration information creation unit 12, an input / output control unit 13, a cooling mechanism control unit 14, an environment information collection unit 15, a failure notification reception unit 16, and a server control unit 17. The storage unit 11 is a storage medium such as a hard disk.

The input / output control unit 13 is connected to an input / output device 7 including a keyboard, a monitor, and the like. The input / output control unit 13 receives the input of the shipping information 111 input using the input / output device 7. Then, the input / output control unit 13 stores the acquired shipping information 111 in the storage unit 11.

FIG. 8 is a diagram showing an example of shipping information. The shipping information 111 is an example of the initial state, and the system configuration information of the information processing system 100 determined at the time of shipping is registered. Specifically, the shipping information 111 includes information on the cooling control unit 2 included in the information processing system 100, information on the immersion tank 3 managed by the cooling control unit 2, and a server 4 stored in each immersion tank 3. Information is stored. The information of the immersion tank 3 includes information indicating which cooling control unit 2 manages each immersion tank 3. Further, the information of the server 4 includes information indicating which immersion tank 3 each server 4 is stored in.

The model type in the shipping information 111 shown in FIG. 8 represents the type of the device. SYSTEM represents the entire information processing system 100. The CDU (Coolant Distribution Unit) represents the cooling control unit 2. BATH represents the immersion tank 3. SERVER represents server 4.

The product model name represents the model version for each type of device. The unit serial number is identification information uniquely assigned to each device. The part name is a name assigned to identify each device. In this embodiment, the component names are numbered sequentially for each server 4 stored in the same immersion tank 3. As the mounting destination, the information of the cooling control unit 2 that manages each immersion tank 3 and the information of the immersion tank 3 that stores each server 4 are represented in a hierarchy. The IP (Internet Protocol) address is an IP address assigned to each cooling control unit 2 and each server 4. The management server 1 uses this IP address to communicate with each of the cooling control unit 2 and each server 4.

The explanation will be continued by returning to FIG. The input / output control unit 13 receives an instruction to start normal operation of the information processing system 100 from the input / output device 7. In that case, the input / output control unit 13 outputs the start command of the server 4 to the server control unit 17. Further, the input / output control unit 13 outputs an instruction to start the operation of the cooling control unit 2 to the cooling mechanism control unit 14. Further, the input / output control unit 13 receives an instruction to shut down the server 4 from the input / output device 7. In that case, the input / output control unit 13 outputs an instruction to shut down the server 4 to the server control unit 17.

Further, the input / output control unit 13 receives an instruction from the input / output device 7 to execute the configuration confirmation test. In that case, the input / output control unit 13 outputs an instruction to execute the configuration confirmation test to the server control unit 17 system configuration information creation unit 12. Further, the input / output control unit 13 receives an operation start instruction from the cooling mechanism control unit 14.

When the server control unit 17 receives the input of the start command of the server 4 from the input / output control unit 13, the server control unit 17 transmits the start command to the system control unit 44 of the server 4. Further, when the server control unit 17 receives the shutdown instruction of the server 4 from the input / output control unit 13, the server control unit 17 transmits the shutdown command to the system control unit 44 of the server 4.

Further, the server control unit 17 receives an input of an instruction to execute the configuration confirmation test from the input / output control unit 13. In this case, the server control unit 17 transmits a start command to the system control units 44 of all the servers 4 stored in each immersion tank 3. Further, the server control unit 17 transmits an execution instruction of the test program to the calculation execution unit 42 of all the started servers 4.

After that, the server control unit 17 receives an execution instruction for setting the pseudo failure mode from the system configuration information creation unit 12. Then, the server control unit 17 instructs the failure notification unit 43 of the server 4 to switch the mode to the pseudo failure mode, and sets the server 4 to the pseudo failure mode.

After the configuration confirmation test is completed, the server control unit 17 receives the input of the completion notification of the configuration confirmation test from the system configuration information creation unit 12. Then, the server control unit 17 notifies the system control unit 44 of each server 4 of the cancellation of the pseudo-failure mode, and returns each server 4 to the normal mode. After that, the server control unit 17 may shut down each server 4 or continue the operation as it is. The server control unit 17 corresponds to an example of the “device management unit”.

When the cooling control unit 2 operates in the normal mode, the failure notification receiving unit 16 receives cautionary information or warning information regarding the immersion tank 3 issued according to the liquid temperature of the liquid refrigerant 300 stored in the immersion tank 3. Received from the failure notification unit 22 of the cooling control unit 2. Then, the failure notification receiving unit 16 generates a message or a warning message calling attention to the acquired immersion tank 3, transmits the message to the input / output device 7 via the input / output control unit 13, and sends those messages to the administrator. offer.

When the server 4 operates in the normal mode, the failure notification receiving unit 16 receives the caution information or the warning information about the server 4 issued according to the CPU temperature from the failure notification unit 43 of the server 4. Then, the failure notification receiving unit 16 generates a message or a warning message calling attention to the acquired server 4, transmits the message to the input / output device 7 via the input / output control unit 13, and provides those messages to the administrator. ..

On the other hand, when the server 4 operates in the pseudo failure mode, the failure notification receiving unit 16 receives the pseudo failure information issued according to the CPU temperature from the failure notification unit 43 of the server 4. Then, the failure notification receiving unit 16 outputs the acquired pseudo failure information to the system configuration information creating unit 12. The failure notification receiving unit 16 corresponds to an example of the “notification acquisition unit”.

The environmental information collecting unit 15 receives the environmental information regarding the immersion tank 3 from the immersion tank monitoring unit 23 of the cooling control unit 2. Then, the environmental information collecting unit 15 stores the acquired environmental information regarding the immersion tank 3 as the environmental information 112 of the storage unit 11.

Further, the environmental information collecting unit 15 receives the environmental information about the server 4 from the monitoring unit 41 of the server 4. Then, the environment information collecting unit 15 stores the acquired environment information about the server 4 as the environment information 112 of the storage unit 11.

The cooling mechanism control unit 14 receives an instruction to start operation of the cooling control unit 2 from the input / output control unit 13. Then, the cooling mechanism control unit 14 transmits an operation start instruction to the cooling control unit 21 of the cooling control unit 2.

Further, in the case of the configuration confirmation test process, the cooling mechanism control unit 14 receives the input of the cooling temperature threshold value for pseudo failure from the system configuration information creation unit 12. Then, the cooling mechanism control unit 14 transmits the acquired cooling temperature threshold value for pseudo-failure to the cooling control units 21 of all the connected cooling control units 2.

After that, the cooling mechanism control unit 14 changes the setting of the control liquid temperature for one immersion tank 3 to be tested among the immersion tanks 3 connected to one of the controlled cooling control units 2. The input of the instruction is received from the system configuration information creation unit 12. Then, the cooling mechanism control unit 14 transmits an instruction to change the control liquid temperature setting to the immersion tank 3 to be tested to the cooling control unit 21 of the cooling control unit 2 that manages the immersion tank 3.

After that, when the system configuration information creation unit 12 completes the reception of the pseudo-failure information from the immersion tank 3 to be tested, the cooling mechanism control unit 14 cancels the change in the control liquid temperature setting of the immersion tank 3 to be tested. The input of the instruction is received from the system configuration information creation unit 12. Then, the cooling mechanism control unit 14 transmits an instruction to release the control liquid temperature setting change of the immersion tank 3 to be tested to the policy control unit 21 of the cooling control unit 2.

The cooling mechanism control unit 14 determines the control temperature of each immersion tank 3 based on the instruction from the system configuration information creation unit 12 until the configuration confirmation of all the servers 4 stored in all the immersion tanks 3 is completed. The setting change and cancellation are repeated in sequence. The cooling mechanism control unit 14 corresponds to an example of the “immersion tank management unit”.

The system configuration information creation unit 12 acquires the shipping information 111 stored in the storage unit 11. Then, the system configuration information creation unit 12 creates the system configuration information 113 based on the configuration specified at the time of shipment from the shipping information 111. After that, the system configuration information creation unit 12 stores the created system configuration information 113 in the storage unit 11.

FIG. 9 is a diagram showing an example of system configuration information. The system configuration information 113 shown in FIG. 9 is the system configuration information 113 created based on the shipping information 111 shown in FIG. The system configuration information creation unit 12 converts the shipping information 111 into a structure that matches the hierarchy of the information processing system 100 as shown in FIG. 9 so that configuration management can be easily performed.

The management table 601 is a table representing the information processing system 100, and is a table at the highest level. The management table 602 represents a hierarchy one level below the management table 601 and is a table for managing the configuration of each cooling control unit 2 represented by the connection unit in the management table 601. The identification information of each cooling control unit 2 is registered in the management table 602. Further, the connection source in the management table 602 is the information of the information processing system 100 to which the information processing system 100 belongs. Further, the connection immersion tank in the management table 602 is information on the immersion tank 3 under management.

The management table 603 represents a hierarchy one level below the management table 602, and is a table for managing the configuration of each immersion tank 3 represented by the connection BATH in the management table 602. The identification information of each immersion tank 3 is registered in the management table 603. Further, the connection source in the management table 603 is the information of the connected cooling control unit 2. Further, the connection SERVER in the management table 603 is the stored information of the server 4.

The management table 604 represents a hierarchy one level below the management table 603, and is a table for managing the configuration of each server 4 represented by SERVER in the management table 603. The identification information of each server 4 is registered in the management table 604. Further, the connection source in the management table 604 is the information of the immersion tank 3 that stores the server 4.

In this way, by adopting a structure that matches the hierarchy of the information processing system 100, it becomes easy for the system configuration information creation unit 12 to search for the server 4 stored in the immersion tank 3. Further, the storage relationship between the server 4 and the immersion tank 3 can be easily changed, and the system configuration information 113 by the system configuration information creation unit 12 can be easily changed.

The system configuration information creation unit 12 receives an input of an instruction to execute the configuration confirmation test from the input / output control unit 13. Then, the system configuration information creation unit 12 outputs a test program execution instruction to the server control unit 17 after starting all the managed servers 4.

After that, the system configuration information creating unit 12 acquires the liquid temperature information of the liquid refrigerant 300 in each immersion tank 3 and the CPU temperature information of the server 4 from the environmental information collecting unit 15. In addition, the system configuration information creation unit 12 may acquire information on each liquid on and information on each CPU temperature by referring to the environment information 112 stored in the storage unit 11. Then, the system configuration information creation unit 12 determines the operating state of the cooling control unit 2 and the server 4 by using the liquid temperature information of the liquid refrigerant 300 in each immersion tank 3 and the CPU temperature information of the server 4. Wait until the operation of the immersion system 5 stabilizes.

After the operation of the immersion system 5 is stabilized, the system configuration information creation unit 12 sets the maximum based on the environmental information including the liquid temperature of the liquid refrigerant 300 in each immersion tank 3 after the stable operation and the CPU temperature of each server 4. Calculate the waiting time and the cooling temperature threshold for pseudo-failure. After that, the system configuration information creation unit 12 outputs the calculated pseudo-failure cooling temperature threshold value to the cooling mechanism control unit 14. Further, the system configuration information creation unit 12 instructs the server control unit 17 to execute the pseudo failure mode setting.

Next, the system configuration information creation unit 12 selects one of the controlled cooling control units 2 as the cooling control unit 2 to be tested. Next, the system configuration information creation unit 12 acquires information on the immersion tank 3 connected to the cooling control unit 2 selected from the cooling mechanism control unit 14 from the cooling mechanism control unit 14. The information on the immersion tank 3 includes the model number and serial number of each immersion tank 3. Next, the system configuration information creation unit 12 selects one immersion tank 3 to be tested from the immersion tanks 3 connected to the selected cooling control unit 2. Then, the system configuration information creation unit 12 acquires the maximum storage number of the server 4 of the immersion tank 3 to be tested from the server storage maximum number information 505 shown in FIG. 10 held by the storage unit 11.

FIG. 10 is a diagram showing an example of server storage maximum number information. The server storage maximum number information 505 holds the maximum number of stored servers 4, which is the maximum number of servers 4 that can be stored in the immersion tank 3 having the model name corresponding to the model name of the immersion tank 3.

Then, the system configuration information creation unit 12 outputs an instruction for changing the setting of the control liquid temperature to the immersion tank 3 to be tested to the cooling mechanism control unit 14. After that, the system configuration information creation unit 12 waits for the failure notification receiving unit 16 to send the pseudo-failure information transmitted from the server 4.

The system configuration information creation unit 12 acquires pseudo-failure information of the maximum number of stored servers 4 in the immersion tank 3 to be tested, or waits until the maximum waiting time elapses. When the maximum number of stored pseudo-failure information is acquired or the maximum waiting time has elapsed, the system configuration information creation unit 12 gives an instruction to release the control liquid temperature setting change to the immersion tank 3 to be tested by the cooling mechanism control unit. Output to 14.

After that, the system configuration information creation unit 12 acquires the identification information of the server 4 that has transmitted the pseudo-failure information from each of the acquired pseudo-failure information. Then, the system configuration information creation unit 12 selects one server as the configuration confirmation target server 4 from the servers 4 that have transmitted the pseudo-failure information. Here, the system configuration information creation unit 12 holds the information of the immersion tank 3 as the test target as the actual storage destination of the server 4 to be checked for configuration.

Next, the system configuration information creation unit 12 confirms the immersion tank 3 that stores the configuration confirmation target server 4 registered in the system configuration information 113 held in the storage unit 11. Then, the system configuration information creation unit 12 includes an immersion tank 3 in which the server 4 to be checked for configuration is actually stored, and an immersion tank 3 for storing the server 4 to be checked for configuration acquired from the system configuration information 113. If is different, the system configuration information 113 is modified.

An example of the method of modifying the system configuration information 113 will be described below. For example, in the configuration of the system configuration information 113 shown in FIG. 9, a case where SERVICE # 11 is not stored in BATH [0] and SERVER # 44 is stored instead will be described.

In this case, the system configuration information creation unit 12 deletes the SERVER [15] in the connection SERVER4 of the BATH [3] in the management table 603. Next, the system configuration information creation unit 12 changes the SERVER [0] of the connection SERVER1 of the BATH [0] in the management table 603 to the SERVER [15]. Next, the system configuration information creation unit 12 changes the connection source BATH [3] of the SERVER [15] in the management table 604 to BATH [0]. Next, the system configuration information creation unit 12 deletes BATH [0], which is the connection source of SERVER [0] in the management table 604. In this case, next, the system configuration information creation unit 12 keeps the server 4 represented by SERVER # 11 in the immersion tank 3 until the pseudo failure information is sent from the server 4 represented by SERVER # 11. Temporarily manage without being connected to.

The system configuration information creation unit 12 confirms the configuration of the server 4 stored in each of all the immersion tanks 3 connected to the cooling control unit 2 to be managed, and creates the system configuration information 113. When the configuration confirmation of all the servers 4 is completed, the system configuration information creation unit 12 outputs a notification of the end of the configuration confirmation test to the server control unit 17. The system configuration information creation unit 12 corresponds to an example of the “configuration information creation unit”.

Next, the flow of the configuration confirmation test process will be described with reference to FIGS. 11A and 11B. FIG. 11A is a flowchart (1) of the configuration confirmation test process. FIG. 11B is a flowchart (2) of the configuration confirmation test process.

The input / output control unit 13 acquires the shipping information 111 input by using the input / output device 7, and stores the acquired shipping information 111 in the storage unit 11. The system configuration information creation unit 12 creates the system configuration information 113 using the shipping information 111 stored in the storage unit 11 and stores it in the storage unit 11 (step S1).

Next, the system configuration information creation unit 12, the cooling mechanism control unit 14, and the server control unit 17 receive the configuration confirmation test execution instruction input by the administrator using the input / output device 7 via the input / output control unit 13. (Step S2).

Upon receiving the configuration confirmation test execution instruction, the cooling mechanism control unit 14 of the management server 1 starts the operation of all the cooling control units 2 to be managed (step S3).

When the operation is started, the cooling control unit 21 of each cooling control unit 2 starts cooling the immersion tank 3 by using the liquid refrigerant 300 in all the immersion tanks 3 to be managed (step S4).

Upon receiving the input of the configuration confirmation test execution instruction, the server control unit 17 of the management server 1 sends a start command to the system control unit 44 of all the managed servers 4 to start all the managed servers 4 ( Step S5).

The system control unit 44 of each server 4 receives a start command from the server control unit 17 of the management server 1. Then, the system control unit 44 powers on its own device (step S6).

After that, the server control unit 17 of the management server 1 transmits an execution instruction of the test program to the arithmetic execution units 42 of all the managed servers 4 (step S7).

The arithmetic execution unit 42 of each server 4 executes the test program in response to the execution instruction from the server control unit 17 of the management server 1 (step S8).

The environmental information collecting unit 15 of the management server 1 collects each environmental information from the immersion tank monitoring unit 23 of the cooling control unit 2 and the monitoring unit 41 of the server 4 (step S9). The environmental information collecting unit 15 stores the environmental information in the storage unit 11.

The system configuration information creation unit 12 of the management server 1 collects the environmental information of each immersion tank 3 and each server 4 from the immersion tank monitoring unit 23 of the cooling control unit 2 and the monitoring unit 41 of the server 4. Obtain from 15. Then, the system configuration information creation unit 12 determines whether or not the operation of the immersion system 5 is stable (step S10). If the operation is not stable (step S10: negative), the system configuration information creation unit 12 returns to step S9.

On the other hand, when the operation is stable (step S10: affirmative), the system configuration information creation unit 12 determines the liquid temperature of the liquid refrigerant 300 in each liquid immersion tank 3 and the CPU temperature in each server 4 included in the environmental information. Is used to calculate the maximum waiting time and the cooling temperature threshold for pseudo-failure (step S11). Then, the system configuration information creation unit 12 outputs the calculated pseudo-failure cooling temperature threshold value to the cooling mechanism control unit 14. The cooling mechanism control unit 14 transmits the acquired cooling temperature threshold value for pseudo-failure to the cooling control unit 21 of the cooling control unit 2. The cooling control unit 21 receives and holds the cooling temperature threshold value for pseudo failure.

Next, the system configuration information creation unit 12 of the management server 1 outputs a setting instruction to the pseudo-failure mode of all the servers 4 to be managed to the server control unit 17. The server control unit 17 receives an instruction from the system configuration information creation unit 12 and transmits an operation mode switching instruction to the pseudo-failure mode to the failure notification unit 43 of each server 4, and simulates all the servers 4 to be managed. Set to the failure mode (step S12).

The failure notification unit 43 of each server 4 receives an instruction to switch the operation mode to the pseudo failure mode from the server control unit 17 of the management server 1. Then, the failure notification unit 43 effectively changes the value of the pseudo failure mode of the management information 503 shown in FIG. Then, the failure notification unit 43 starts monitoring using the pseudo-failure temperature (step S13).

Next, the system configuration information creation unit 12 of the management server 1 selects one cooling control unit 2 from the cooling control units 2 under management (step S14).

Then, the system configuration information creation unit 12 acquires the information of the connected immersion tank 3 registered in the management information 501 shown in FIG. 4 held by the selected cooling control unit 2 from the cooling control unit 21 (step S15). ).

Then, the system configuration information creation unit 12 selects one immersion tank 3 to be tested from the immersion tank 3 connected to the selected cooling control unit 2 (step S16).

Next, the system configuration information creation unit 12 instructs the cooling mechanism control unit 14 to change the setting of the control liquid temperature of the immersion tank 3 to be tested. The cooling mechanism control unit 14 transmits a control liquid temperature setting change command to the cooling control unit 21 of the cooling control unit 2 to instruct the control liquid temperature setting change (step S17).

The cooling control unit 21 of the cooling control unit 2 receives a control liquid temperature setting change command from the system configuration information creation unit 12 of the management server 1. Then, the cooling control unit 21 changes the control liquid temperature of the management information 501 to the cooling temperature threshold value for pseudo failure (step S18).

After that, the system configuration information creation unit 12 of the management server 1 waits for the reception of the pseudo failure information from each server 4 (step S19).

The failure notification unit 43 of the server 4 determines whether or not the CPU temperature has reached the pseudo failure temperature based on the CPU temperature information acquired from the monitoring unit 41 (step S20). When the CPU temperature has not reached the pseudo failure temperature (step S20: negative), the failure notification unit 43 waits until the CPU temperature reaches the pseudo failure temperature.

When the CPU temperature reaches the pseudo failure temperature (step S20: affirmative), the failure notification unit 43 transmits the pseudo failure information to the failure notification receiving unit 16 of the management server 1 (step S21).

When the failure notification receiving unit 16 of the management server 1 receives the pseudo failure information, it outputs the received pseudo failure information to the system configuration information creation unit 12. The system configuration information creation unit 12 receives the input of pseudo failure information from the failure notification receiving unit 16. Then, the system configuration information creation unit 12 of the management server 1 determines whether or not the pseudo failure information of the maximum number of stored items has been acquired (step S22).

When the acquired pseudo-failure information has not reached the maximum number of stored items (step S22: negative), the system configuration information creation unit 12 determines whether or not the maximum waiting time has elapsed (step S23). If the maximum waiting time has not elapsed (step S23: negative), the system configuration information creation unit 12 returns to step S19.

On the other hand, when the pseudo failure information of the maximum number of stored items is acquired (step S22: affirmative) or when the maximum waiting time has elapsed (step S23: affirmative), the system configuration information creation unit 12 is in the immersion tank 3 to be tested. Instruct the cooling mechanism control unit 14 to cancel the change in the control liquid temperature setting. The cooling mechanism control unit 14 transmits a notification of release of the control liquid temperature setting change in the immersion tank 3 to be tested to the cooling control unit 21 of the cooling control unit 2, and the liquid refrigerant 300 in the immersion tank 3 to be tested The change of the control liquid temperature setting of the above is canceled (step S24).

The cooling control unit 21 of the cooling control unit 2 receives a notification of cancellation of the setting change of the control liquid temperature in the immersion tank 3 to be tested from the cooling mechanism control unit 14 of the management server 1. Then, the cooling control unit 21 changes the value of the control liquid temperature in the immersion tank 3 to be tested registered in the management information 501 from the pseudo-failure place cooling temperature threshold value to the initial value and restores the original value (step S25).

Next, the system configuration information creation unit 12 of the management server 1 selects one server 4 whose configuration is to be confirmed from the server 4 that is the source of the pseudo-failure information (step S26).

Next, the system configuration information creation unit 12 acquires the system configuration information 113 from the storage unit 11. Then, the system configuration information creation unit 12 determines whether or not the immersion tank 3 in which the server 4 to be confirmed for configuration is stored is different from the system configuration information 113 (step S27).

When the immersion tank 3 in which the server 4 to be checked for configuration is stored matches the system configuration information (step S27: negative), the system configuration information creation unit 12 proceeds to step S29.

On the other hand, when the immersion tank 3 in which the server 4 to be checked for configuration is stored is different from the system configuration information (step S27: affirmative), the system configuration information creation unit 12 sets the server 4 to be checked for configuration in the system configuration information 113. The information of the immersion tank 3 to be stored is updated (step S28).

Next, the system configuration information creation unit 12 determines whether or not the checks of all the servers 4 stored in the immersion tank 3 to be tested have been completed (step S29). If the server 4 for which the check has not been completed remains (step S29: negative), the system configuration information creation unit 12 returns to step S26.

On the other hand, when the checks of all the servers 4 are completed (step S29: affirmative), the system configuration information creation unit 12 completes the checks of all the immersion tanks 3 connected to the selected cooling control unit 2. It is determined whether or not the test has been performed (step S30). If the immersion tank 3 for which the check has not been completed remains (step S30: negative), the system configuration information creation unit 12 returns to step S16.

On the other hand, when the checks of all the immersion tanks 3 are completed (step S30: affirmative), the system configuration information creation unit 12 determines whether or not the checks of all the cooling control units 2 to be managed are completed. Determine (step S31). If the static reverse control unit 2 for which the check has not been completed remains (step S31: negative), the system configuration information creation unit 12 returns to step S14.

On the other hand, when the checks of all the cooling control units 2 are completed (step S31).
: Affirmative), the system configuration information creation unit 12 instructs the server control unit 17 to cancel the control temperature change. The server control unit 17 transmits a control temperature change release command to the failure notification unit 43 of each server 4 to return all the managed servers 4 to the normal mode (step S32).

After that, the system configuration information creation unit 12 ends the configuration confirmation test (step S33).

(Hardware configuration)
Next, the hardware configuration of the management server 1 will be described with reference to FIG. As shown in FIG. 12, the management server 1 has a CPU 91, a memory 92, a storage device 93, and a network interface 94.

The CPU 91 connects to the memory 92, the storage device 93, and the network interface 94 via a bus.

The storage device 93 is, for example, a hard disk. The storage device 93 realizes the function of the storage unit 11 illustrated in FIG. Further, the storage device 93 has the functions of the system configuration information creation unit 12, the input / output control unit 13, the cooling mechanism control unit 14, the environment information collection unit 15, the failure notification reception unit 16, and the server control unit 17, as illustrated in FIG. Stores various programs including programs for realizing. The network interface 94 is a communication interface for communicating between the CPU 91, the cooling control unit 2, and the server 4.

The CPU 91 reads various programs from the storage device 93, expands them into the memory 92, and executes them to execute the system configuration information creation unit 12, the input / output control unit 13, the cooling mechanism control unit 14, the environment information collection unit 15, and the failure notification. The functions of the receiving unit 16 and the server control unit 17 are realized.

As described above, the management server according to the present embodiment raises the control temperature of the immersion tank by the cooling control unit and lowers the threshold value for the failure notification of the CPU temperature to notify the pseudo failure. It makes it easier to publish and reduces the heat effect on the server. Then, the management server acquires the information of the server stored in each immersion tank by using the acquired pseudo failure notification, and updates the system configuration information so as to represent the actual configuration. As a result, the administrator can identify the server stored in each immersion tank by checking the system configuration information.

When the power of the server is turned off to repair the faulty part in the event of a malfunction of the immersion tank or the fault of the cooling control unit, it is possible to identify the server that will be affected during the repair and turn off the power. , Maintenance work can be facilitated.

1 Management server 2 Cooling control unit 3 Immersion tank 4 Server 5 Immersion system 6 Network 7 Input / output device 11 Storage unit 12 System configuration information creation unit 13 Input / output control unit 14 Cooling mechanism control unit 15 Environmental information collection unit 16 Failure notification Reception unit 17 Server control unit 21 Cooling control unit 22 Failure notification unit 23 Immersion tank monitoring unit 30 Sensor 41 Monitoring unit 42 Calculation execution unit 43 Failure notification unit 44 System control unit 100 Information processing system

Claims (6)

During the test operation, each of the plurality of immersion tanks has a cooling control device that adjusts the liquid temperature of the liquid refrigerant stored in the immersion tank at a test upper limit value higher than the upper limit value during normal operation. With the management department
A notification acquisition unit that receives a notification when the temperature of the information processing device exceeds the temperature threshold from one or more information processing devices stored in each of the plurality of immersion tanks and cooled by the liquid refrigerant. ,
A configuration identification device including a configuration information generation unit that acquires identification information of the information processing device that has given the notification from the notification acquired by the previous notification acquisition unit. The claim is further comprising an apparatus management unit that sets the temperature threshold value to the first temperature during the normal operation and sets the temperature threshold value to a second temperature lower than the first temperature during the test operation. The configuration identification device according to 1. The configuration identification device according to claim 1 or 2, wherein the configuration information generation unit generates configuration information indicating the immersion tank at the storage destination for each information processing device. The third aspect of the present invention is characterized in that the configuration information generation unit holds the initial configuration information specified in advance and generates the configuration information based on the notification acquired by the previous notification acquisition unit and the initial configuration information. The configuration identification device described. An information processing system having an immersion system and a configuration identification device.
The immersion system
Multiple immersion tanks that store liquid refrigerant,
It is provided with one or a plurality of information processing devices stored in each of the immersion tanks and cooled by the liquid refrigerant, and a cooling control device for adjusting the liquid temperature of the liquid refrigerant in each of the immersion tanks.
The configuration identification device is
During the test operation, each of the plurality of immersion tanks is immersed in a cooling control device that adjusts the liquid temperature of the liquid refrigerant stored in the immersion tank at a test upper limit value higher than the upper limit value during normal operation. Tank management department and
A notification acquisition unit that receives a notification from each of the information processing devices when the temperature of the information processing device exceeds the temperature threshold value.
An information processing system including a configuration information generation unit that acquires identification information of the information processing device that made the notification from the notification acquired by the previous notification acquisition unit. During the test operation, each of the plurality of immersion tanks is allowed to adjust the liquid temperature of the liquid refrigerant stored in the immersion tank at a test upper limit value higher than the upper limit value during normal operation by the cooling control device.
Received a notification from one or more information processing devices stored in each of the plurality of immersion tanks and cooled by the liquid refrigerant when the temperature of the information processing device exceeds the temperature threshold.
A configuration identification method characterized in that the identification information of the information processing apparatus that transmitted the notification is acquired from the acquired notification.

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