JP5304265B2 - Power control system, power control method, power distribution control circuit, and power control program - Google Patents

Description

The present invention relates to a power supply control system, a power supply control method, a power supply distribution control circuit, and a power supply control program, and in particular, a power supply capable of appropriately performing surplus power distribution control by effectively utilizing a prediction result of power consumption. The present invention relates to a control system, a power control method, a power distribution control circuit, and a power control program.

  In general, the built-in power supply of a server apparatus has a capacity that can withstand the maximum load, and the redundant configuration is often fixed (for example, 2 + 1 redundancy).

  In such a configuration, it is conceivable to prepare a server with an excessive power capacity for the load prediction at the time of system construction assuming a change in system requirements. There is a problem that surplus power supply capacity is wasted, that is, it cannot be effectively used.

  On the other hand, Patent Document 1 describes an information processing apparatus that prevents a current consumption value in each functional block from exceeding the current supply capability of a power supply source and a power supply circuit (FIG. 12). The power control block 6 operates the operation of each functional block so that the current consumption in the entire device does not exceed the power supply capability of the power supply circuit 3 and the power supply source. In particular, in the 25th paragraph, the power consumption of the entire device when the function block 4 (21) is added and operated is predicted, and whether or not the current supply capability of the power supply circuit 3 is exceeded. The fact that it is judged is described.

  In Patent Document 2, the power supply amount of the power supply is less than that of the common power supply, and a redundant configuration with N redundancy is used. It is described that it is not necessary to exchange.

JP2001-22480 JP 2000-324717 A

  However, in Patent Document 1, only the power consumption of the functional block is predicted and it is determined whether or not the current supply capability of the power supply circuit 3 is exceeded, and there is little power consumption and surplus power is generated. There is no information about how to deal with it. Similarly, the cited document 2 only describes power sharing, but does not describe how to deal with the case where the amount of power consumption is small and surplus power is generated. Thus, the technique described in the above-mentioned patent document cannot solve the above-described problem that the surplus power cannot be effectively used.

An object of the present invention is to provide a power supply control system, a power supply control method, a power supply distribution control circuit, and a power supply control program that can solve the above-described problems and can appropriately control the distribution of surplus power. .

The power supply control system of the present invention is
A plurality of server devices and a power distribution control circuit, each server device calculates a predicted power consumption value indicating a predicted power consumption value of the server device, and the power distribution control circuit is connected to each server device. Based on the predicted power consumption calculated by the above, the surplus power distribution processing of a plurality of server devices is performed.

The power control method of the present invention is a power control method in a power control system including a plurality of server devices. In the power control method, a calculation step of calculating a power consumption predicted value indicating a power consumption predicted value in each server device; A distribution step of performing distribution processing of surplus power of a plurality of server devices based on the predicted power consumption value.

The power distribution control circuit according to the present invention is a power distribution control circuit connected to a plurality of server devices, wherein the surplus power of the plurality of server devices is distributed based on a predicted power consumption value of each of the server devices. It has the control means which performs .

The power supply control program of the present invention includes a step of receiving a predicted power consumption value of each server device from a plurality of server devices , and a distribution process of surplus power of the plurality of server devices based on the predicted power consumption value. And a distribution step to be executed.

  The present invention has an effect that it is possible to appropriately perform surplus power distribution control by effectively utilizing the prediction result of the power consumption.

FIG. 1 is an overall configuration diagram of a power supply control system according to a first embodiment of the present invention. FIG. 2 is a block diagram of the server device 10. FIG. 3 is a diagram illustrating an example of the power consumption management table 108. 4A and 4B are diagrams illustrating an example of the server information 40. FIG. FIG. 5 is a flowchart showing the overall operation. FIG. 6 is a diagram showing server information 60 according to the second embodiment of the present invention. FIG. 7 is a flowchart showing the overall operation. FIG. 8 is a diagram illustrating an example of the distribution information 62 generated in S706. FIG. 9 is an overall configuration diagram of a power supply control system according to the third embodiment of the present invention. FIG. 10 is a diagram showing an example of the server information 100 according to the fourth embodiment of the present invention. FIG. 11 is a flowchart showing the overall operation. FIG. 12 is a diagram illustrating an information processing apparatus that prevents the current consumption value in each functional block from exceeding the current supply capability of the current supply source and the power supply circuit.

  Next, the power supply control system according to the first embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an overall configuration diagram of a power supply control system according to a first embodiment of the present invention. The power control system 1 includes server devices 10, 11, 12, a server power distribution circuit 13, and a power distribution control circuit 14.

  The server apparatuses 10 to 12 calculate the predicted power value of the server apparatuses 10 to 12.

When the power distribution control circuit 14 obtains the predicted power value from the server devices 10 to 12, the power distribution control circuit 14 sends a switching instruction indicating that the built-in power supply is output to the outside to the server device with low power consumption, and the power consumption is high A switching instruction is sent to the server device indicating that the externally output built-in power supply is to be received. Further, the power distribution control circuit 14 generates distribution information indicating how much surplus power is allocated to which server and sends the generated distribution information to the server power distribution circuit 13.

  The server power supply distribution circuit 13 allocates the built-in power supply received from the server apparatuses 10 to 12 to the server apparatuses 10 to 12 based on the distribution information.

  Next, the server device will be described. FIG. 2 shows a block diagram of the server device 10.

  The server device 10 includes a processor circuit 100, a power supply switching circuit 101, built-in power supplies 102, 103, 104, an output switching circuit 105, a power consumption prediction circuit 106, and a storage unit 107. Built-in power supplies 102, 103, and 104 supply power to the processor circuit 100. The power supply switching circuit 101 switches between a built-in power supply output and externally supplied power. The output switching circuit 105 outputs a part of the built-in power supply output to the outside. The power consumption prediction circuit 106 predicts the power consumption of the server device 10 itself.

The storage unit 107 stores a power consumption management table 108. FIG. 3 shows an example of the power consumption management table 108. The power consumption management table 108 stores power consumption predicted values for each application. The processor circuit 100 calculates the total power consumption predicted value of the application running on the server device 10 and the application scheduled to be launched from this, and transmits it to the power distribution control circuit 14.

  The server apparatuses 11 and 12 have the same configuration as the server apparatus 10.

  Next, the power distribution control circuit 14 will be described. The power distribution control circuit 14 includes a processor circuit (not shown) and storage means. The storage means stores server information 40 indicating information for each server and a distribution condition 41 indicating a surplus power distribution criterion.

  An example of the server information 40 is shown in FIG.

The server information 40 includes a power supply field, a predicted power consumption value field, and a surplus power field. When the power distribution control circuit 14 receives the supply power information and the predicted power consumption value from each of the server apparatuses 10 to 12, it calculates surplus power and updates the server information 40.

The distribution condition 41 is assumed to be a condition that “the surplus power is equally distributed to the servers 10 to 12”. The distribution condition 41 is not limited to this.

  Next, the overall operation of this embodiment will be described.

  FIG. 5 is a flowchart showing the overall operation according to the present embodiment.

  Each of the server apparatuses 10 to 12 performs power consumption prediction of the own server apparatus (S501). The power distribution control circuit 14 obtains a predicted power value from each server device (S502). The power distribution control circuit 14 determines whether or not the built-in power supply of each server device is surplus based on the server information 40 (S503). When it is determined that there is surplus power, the power distribution control circuit 14 issues a switching instruction to instruct the server device with surplus power to output the surplus power of the built-in power supply externally (S504). On the other hand, when it is determined that there is no surplus power, the power distribution control circuit 14 issues a switching instruction to instruct the server device without surplus power to receive power supply from another server device (S505). .

  The power distribution control circuit 14 sends a switching instruction to each of the server apparatuses 10 to 12 and generates distribution information 43 indicating how much surplus power is allocated to which server based on the distribution condition 41 (S506). Then, the distribution information 43 is sent to the server power distribution circuit 13 and each of the server apparatuses 10 to 12 (S507).

  Next, the server device instructed to output the surplus power to the outside sends the surplus power to the server power distribution circuit 13 (S508).

  Next, the server power distribution circuit 13 distributes surplus power to the server devices 10 to 12 based on the distribution information 43 (S509). When the power distribution control circuit 14 receives the distribution completion notification from the server power distribution circuit 13, the power distribution control circuit 14 updates the server information 40 (S5010).

  In addition, it is good for each server apparatus 10-12 to send change information to the power distribution control circuit 14 suitably, when supply power information etc. have changed.

  Next, a specific example is given and the operation example of this Embodiment is demonstrated.

For example, the server information 40 in FIG. 4A will be described as an example. The power supplied to each of the server devices 10 to 12 is 3.0 kW for the server device 10, 4.0 kW for the server device 11, and 3.0 kW for the server device 12. Supply power information is sent to the power distribution control circuit 14 in advance.

  The processor circuit of each of the server apparatuses 10 to 12 calculates a predicted power consumption value based on a power consumption management table 108 (not shown). As a result, as shown in FIG. 4A, the total power consumption predicted value of the server device 10 is 2.0 kW, the total power consumption predicted value of the server device 11 is 2.0 kW, and the server device 12 consumption. It is assumed that the total power predicted value is 3.0 kW (S501).

And each server apparatus 10-12 sends the power consumption estimated value of a self-server apparatus to the power distribution control circuit 14, and the power distribution control circuit 14 acquires the power consumption estimated value of each server apparatus 10-12. (S502). Next, the power distribution control circuit 14 calculates surplus power of each of the server apparatuses 10 to 12 from the supplied power information and the predicted power consumption value. As a result, as shown in FIG. 4A, it is assumed that the surplus power of the server device 10 is 1.0 kW, the surplus power of the server device 11 is 2.0 kW, and the surplus power of the server device 12 is 0 kW ( S503).

The power distribution control circuit 14 instructs the server apparatus 10 and the server apparatus 11 that are determined to have surplus power to switch the surplus power to the server power distribution circuit to be externally output (S504).

On the other hand, the power distribution control circuit 14 instructs the server apparatus 12 determined to have no surplus power to switch to input surplus power from the outside (S505).

  The power distribution control circuit 14 issues a switching instruction (S504, S505), and generates distribution information 42 indicating how much surplus power is allocated to which server based on the distribution condition 41 (S506). In the present embodiment, the distribution condition is a condition that “the surplus power is equally distributed to the servers 10 to 12”. Therefore, the power distribution control circuit 14 determines that “the surplus power of each server device 10 to 12 is from the server information 40. The distribution information 42 is generated so as to be “1.0 kW”.

  Then, the power distribution control circuit 14 sends the distribution information 42 to the server power distribution circuit 13 and each of the server apparatuses 10 to 12 (S507).

  Next, the server apparatuses 10 and 11 instructed to output the surplus power to the outside send the surplus power to the server power distribution circuit 13 based on the distribution information 42 (S508).

  The server power distribution circuit 13 distributes the surplus power sent from the server device 10 and the server device 11 to each of the server devices 10 to 12 based on the distribution information 42 (S509). As a result of the distribution, the server information 40 is as shown in FIG.

  When the power distribution control circuit 14 receives the distribution completion notification from the server power distribution circuit 13, the power distribution control circuit 14 updates the server information 40 (S510).

  Note that the server device in which the surplus power does not change before and after the surplus power distribution may be configured not to send the surplus power to the server power distribution circuit 13 in S508. In the example of the present embodiment, the server device 10 may be configured not to send surplus power to the server power distribution circuit 13.

  Thus, in this embodiment, there is an effect that it is possible to appropriately perform the surplus power distribution control by effectively using the prediction result of the power consumption.

  Next, a second embodiment of the present invention will be described.

  In the second embodiment, server information 40 and a distribution condition 41 included in the power distribution control circuit 14 are different from those in the first embodiment. Since the overall configuration of the power supply control system according to the second embodiment is the same as that of the first embodiment, detailed description thereof is omitted.

  FIG. 6 shows server information 60 of the second embodiment.

The server information 60 has a supply power field, a predicted power consumption value field, a surplus power field, and a minimum surplus power field. The minimum surplus power is power that the server must secure at least to ensure redundancy. Other fields are the same as the server information 40 in the first embodiment.

  Although the distribution condition 61 is not illustrated, the surplus power is distributed as evenly as possible within a range not lower than the minimum surplus power value.

FIG. 7 is a flowchart showing the overall operation according to the second embodiment. In the first embodiment, whether or not each server device has a surplus built-in power supply is used as a criterion (S503). In the present embodiment, whether or not there is a surplus power supply exceeding the minimum surplus power supply. Is different from that of the first embodiment in that Each of the server apparatuses 10 to 12 performs power consumption prediction of its own server apparatus (S701).

When the power distribution control circuit 14 obtains the predicted power value from the server devices 10 to 12 (S702), the power distribution control circuit 14 determines whether or not surplus power equal to or more than the minimum surplus power exists in each server device 10 to 12 (S703). . As a result, the power distribution control circuit 14 issues a switching instruction to instruct the server device having surplus power equal to or more than the minimum surplus power to output the surplus power to the server power distribution circuit (S704). On the other hand, the power distribution control circuit 14 issues a switching instruction to instruct the server device that does not have surplus power equal to or more than the minimum surplus power to input the surplus power from the outside (S705).

  The power distribution control circuit 14 sends a switching instruction to each server device 10-12 (S704, S705), each server device 10-12 satisfies the minimum surplus power, and the surplus power is equal to each server device 10-12. The distribution information 62 is generated so as to be equal to (S706). Next, the power distribution control circuit 14 sends the distribution information 62 to the server power distribution circuit 13 and each of the server apparatuses 10 to 12 (S707).

  Next, the server device that is instructed to output externally sends surplus power to the server power distribution circuit 13 based on the distribution information 62 (S708).

  Next, the server power distribution circuit 13 distributes surplus power based on the distribution information 62 (S709). When the power distribution control circuit 14 receives the notification of the completion of distribution from the server power distribution circuit 13, the power distribution control circuit 14 updates the server information 40 (S710).

  Next, the operation of the present embodiment will be described with a specific example.

For example, the server information 60 in FIG. 6 will be described as an example. The power supplied to each of the server devices 10 to 12 is 3.0 kW for the server device 10, 8.0 kW for the server device 11, and 3.0 kW for the server device 12. Supply power information is sent to the power distribution control circuit 14 in advance.

  The processor circuit of each of the server apparatuses 10 to 12 calculates a predicted power consumption value based on a power consumption management table 108 (not shown). As a result, as shown in FIG. 6, the total power consumption prediction value of the server device 10 is 2.5 kW, the total power consumption prediction value of the server device 11 is 2.0 kW, and the power consumption prediction value of the server device 12. Suppose that the total of the total becomes 3.5 kW (S701).

And each server apparatus 10-12 sends the power consumption estimated value of a self-server apparatus to the power distribution control circuit 14, and the power distribution control circuit 14 acquires the power consumption estimated value of each server apparatus 10-12. (S702). Next, the power distribution control circuit 14 calculates surplus power of each of the server apparatuses 10 to 12 from the supplied power information and the predicted power consumption value. As a result, as shown in FIG. 6, it is assumed that the surplus power of the server device 10 is 0.5 kW, the surplus power of the server device 11 is 6.0 kW, and the surplus power of the server device 12 is −0.5 kW.

  The power distribution control circuit 14 determines whether there is surplus power equal to or greater than the minimum surplus power in each of the server apparatuses 10 to 12 (S703). In the server information 60 of FIG. 6, the minimum surplus power of the server device 10 is 1.0 kW, the minimum surplus power of the server device 11 is 1.0 kW, and the minimum surplus power of the server device 12 is 0.5 kW. For this reason, the power distribution control circuit 14 determines that there is surplus power equal to or greater than the minimum surplus power for the server device 11 and that there is no surplus power equal to or greater than the minimum surplus power for the server devices 10 and 12. to decide.

The power distribution control circuit 14 instructs the server apparatus 11 determined to have surplus power equal to or more than the minimum surplus power to output the surplus power to the server power distribution circuit (S704).

On the other hand, the power distribution control circuit 14 instructs the server devices 10 and 12 that are determined to have no surplus power equal to or greater than the minimum surplus power to input surplus power from the outside (S705).

  The power distribution control circuit 14 issues a switching instruction (S704, S705), and generates distribution information 62 indicating how much surplus power is allocated to which server based on the distribution condition 61 (S706). In the present embodiment, the distribution condition 61 is “distribute the surplus power as evenly as possible within a range not lower than the minimum surplus power value”. Therefore, the distribution information 62 is information such that the server devices 10 to 12 satisfy the minimum surplus power and the surplus power is equal to each server device 10 to 12.

  FIG. 8 shows an example of the distribution information 62 generated in S706.

  Next, the power distribution control circuit 14 sends the distribution information 62 to the server power distribution circuit 13 and the server apparatuses 10 to 12 (S707).

  Next, the server apparatus 11 instructed to output the surplus power to the outside sends the surplus power to the server power distribution circuit 13 (S708). Then, the server power distribution circuit 13 distributes the surplus power sent from the server device 11 to the server devices 10 and 12 based on the distribution information 62 (S709). When receiving the distribution completion notification from the server power distribution circuit 13, the power distribution control circuit 14 updates the server information 60 (S710).

  Note that the server device in which the surplus power does not change before and after the surplus power allocation may be configured not to send the surplus power to the server power distribution circuit 13 in S708.

  Further, the distribution information 62 is not limited to the present embodiment, and it is only necessary to satisfy the distribution condition 61. As in the present embodiment, when the distribution condition 61 is “distribute surplus power as evenly as possible within a range not lower than the minimum surplus power value”, first, surplus power is evenly distributed to all the server apparatuses 10 to 12. Calculation may be performed for the case of distribution, and as a result, the distribution of surplus power may be readjusted only when there is a server device that is below the minimum surplus power value.

  As in the first embodiment, the second embodiment has an effect that the surplus power distribution control can be appropriately performed by effectively using the prediction result of the power consumption.

  Next, a third embodiment of the present invention will be described.

  FIG. 9 shows a power supply control system according to the third embodiment of the present invention. The third embodiment is different from the first and second embodiments only in that the warning circuit 110 is provided.

  In the third embodiment, the power distribution control circuit 14 sends an instruction to the warning circuit 110 when the power shortage of the own server device cannot be secured even if the surplus power of another server device is used. For example, when the predicted power consumption value is a value that ensures redundancy, the warning circuit 110 notifies the operator that a problem has occurred in redundancy by lighting an LED or the like.

  Thus, in the third embodiment, there is an effect that it is possible to cope in advance when the insufficient power of the own server device cannot be secured even if the surplus power of the other server device is used.

  Next, a fourth embodiment of the present invention will be described.

  The fourth embodiment is a combination of the second embodiment and the third embodiment, but only the contents of the server information 120 are different from the second and third embodiments.

  FIG. 10 shows an example of the server information 100.

  The server information 100 includes a power supply field, a predicted power consumption value field, a surplus power field, a minimum surplus power field, and a priority field. The priority is information indicating which server device has priority for power supply when the minimum surplus power of all the server devices 10 to 12 cannot be secured with the surplus power. Other fields are the same as the server information 60 in the second embodiment.

  FIG. 11 is a flowchart showing the overall operation according to the fourth embodiment. Since the operation up to S1102 in FIG. 11 is the same as the operation up to S702 in the second embodiment, detailed description thereof is omitted.

  After obtaining the predicted power value of each of the server apparatuses 10 to 12 (S1102), the power distribution control circuit 14 determines whether all the server apparatuses have surplus power equal to or greater than the minimum surplus power (S1103).

When there is a server device that is less than or equal to the minimum surplus power, the power distribution control circuit 14 determines whether or not the surplus power of the server device that is less than or equal to the minimum surplus power can be covered by the surplus power of other server devices (S1104). ). If it is determined that it cannot be covered, the power supply of the server apparatus having the lowest priority among the server apparatuses determined not to be covered is stopped, and the power is set as surplus power (S1105). Then, the warning circuit 110 is notified that the power supply of the server device with the lower priority has been stopped. Then, the process returns to S1104.

  When all the server devices have surplus power equal to or higher than the minimum surplus power (S1103), or when the surplus power of other server devices can cover the surplus power of the server device that is below the minimum surplus power (S1104), FIG. The same processing as S703 and after is performed.

  In addition, when there is a change in the power supply of each server apparatus 10-12, it is preferable that each server apparatus 10-12 notifies the power distribution control circuit 14 of the change as appropriate.

Next, the fourth embodiment will be described by taking the server information 100 of FIG. 10 as an example. The power supplied to each of the server devices 10 to 12 is 3.0 kW for the server device 10, 6.0 kW for the server device 11, and 3.0 kW for the server device 12. Supply power information is sent to the power distribution control circuit 14 in advance.

  The processor circuit of each of the server apparatuses 10 to 12 calculates a predicted power consumption value based on a power consumption management table 108 (not shown). As a result, as shown in FIG. 10, the total power consumption predicted value of the server device 10 is 4.0 kW, the total power consumption predicted value of the server device 11 is 3.0 kW, and the power consumption predicted value of the server device 12. Suppose that the total of the total becomes 2.0 kW (S1101).

And each server apparatus 10-12 sends the power consumption estimated value of a self-server apparatus to the power distribution control circuit 14, and the power distribution control circuit 14 acquires the power consumption estimated value of each server apparatus 10-12. (S1102). Next, the power distribution control circuit 14 calculates surplus power of each of the server apparatuses 10 to 12 from the supplied power information and the predicted power consumption value. As a result, as illustrated in FIG. 10, it is assumed that the surplus power of the server device 10 is −1.0 kW, the surplus power of the server device 11 is 3.0 kW, and the surplus power of the server device 12 is 1.0 kW .

  As shown in FIG. 10, the minimum surplus power of the server device 10 is 1.0 kW, the minimum surplus power of the server device 11 is 2.0 kW, and the minimum surplus power of the server device 12 is 1.5 kW.

Since the server apparatuses 10 and 12 do not have surplus power equal to or greater than the minimum surplus power (S1103), the power distribution control circuit 14 can cover the surplus power of the server apparatus that is below the minimum surplus power by surplus power of other server apparatuses. Is determined (S1104).

  In this embodiment, since it cannot cover, the power supply of the server apparatus 12 with a low priority is stopped and surplus power is set (S1105). Then, the warning circuit 110 is notified that the power supply to the server device 12 has been stopped. As a result, the power supply of the server device 12 can be used as surplus power to cover the power shortage of the server device 10 (S1104).

  Since the operation after S1107 is the same as the operation after S703 in FIG. 7, detailed description thereof is omitted.

It should be noted that either the surplus power or the partial surplus power may be used for the power of the server apparatus whose power supply is stopped in S1105.
Therefore, in the fourth embodiment, the surplus power distribution control is appropriately performed by effectively using the prediction result of the power consumption amount, and the power shortage of the own server device is secured even if the surplus power of another server device is used. There is an effect that it is possible to cope in advance when it is not possible.

Claims (32)

A plurality of server devices;
A power distribution control circuit,
Each of the server devices calculates a predicted power consumption value indicating a predicted power consumption value of the server device itself,
The power distribution control circuit performs a distribution process of surplus power of the plurality of server devices based on the predicted power consumption value calculated by each of the server devices. Server power distribution circuit
The power distribution circuit generates distribution information indicating distribution distribution of surplus power to the plurality of server devices based on the predicted power consumption value calculated by each of the server devices,
The power supply control system according to claim 1, wherein the server power distribution circuit distributes the surplus power to each of the server devices based on the distribution information. The power distribution control circuit includes control means and storage means,
The storage means stores server information including a supply power value, a predicted power consumption value, and a surplus power value for each server device, and a distribution condition indicating a surplus power distribution criterion,
The power control system according to claim 2, wherein the control unit generates the distribution information based on the server information and the distribution condition. The power distribution control circuit issues a switching instruction to instruct the server device having surplus power to output the surplus power to the outside, and inputs external power to the server device having insufficient power. The power supply control system according to claim 3, wherein a switching instruction is given. The server information includes minimum surplus power information indicating a surplus power threshold for each server device,
5. The power supply control system according to claim 3, wherein the power distribution circuit generates the distribution information so that surplus power of each of the server devices is equal to or greater than a threshold indicated by the minimum surplus power information. . The server information includes priority information indicating the priority of each of the server devices,
When there is a server device that is less than the predicted power consumption value even if the surplus power is shared between the server devices, the power distribution circuit determines the power of the server device with a lower priority based on the priority information. The power supply control system according to any one of claims 3 to 5, wherein the supply is stopped. With warning circuit,
2. The power distribution control circuit according to claim 1, wherein when a surplus power is shared between the server apparatuses and there is a server apparatus with insufficient power, the power supply control circuit notifies the warning circuit to that effect. 7. The power supply control system according to any one of 6. The power supply control system according to claim 6, wherein the power distribution circuit notifies the warning circuit when the power supply to the server device having a low priority is stopped. In a power control method in a power control system including a plurality of server devices,
A calculation step of calculating a predicted power consumption value indicating a predicted power consumption value in each of the server devices;
A power distribution control method comprising: a distribution step of performing distribution processing of surplus power of the plurality of server devices based on the predicted power consumption value of each of the server devices. Furthermore, based on the predicted power consumption value of each server device, comprising a generation step of generating distribution information indicating a distribution of surplus power in the entire plurality of server devices,
The power distribution control method according to claim 9, wherein the distribution step distributes the surplus power to each server device based on the distribution information. In the generating step,
The distribution information is generated based on server information including a supply power value, a predicted power consumption value, and a surplus power value for each server device, and a distribution condition indicating a surplus power distribution criterion. The power supply control method according to claim 10.   Furthermore, an instruction step is provided for instructing a server device having surplus power to output the surplus power to the outside and for instructing a server device having insufficient power to input the external power. The power supply control method according to claim 11. The server information includes minimum surplus power information indicating a surplus power threshold for each server device,
The power supply control method according to claim 11 or 12, wherein, in the generation step, the distribution information is generated such that surplus power of each of the server devices is equal to or greater than a threshold value indicated by the minimum surplus power information. The server information includes priority information indicating the priority of each of the server devices,
Further, when there is a server device that is less than or equal to the predicted power consumption value even if the surplus power is shared between the server devices, a stop to stop the power supply of the server device with a lower priority order based on the priority order information The power supply control method according to claim 11, further comprising a step. The power control system includes a warning circuit;
15. The method according to claim 9, further comprising a warning step of notifying the warning circuit of the fact that there is a server device with insufficient power even if the surplus power is shared between the server devices. The power supply control method according to Item 1. The power supply control method according to claim 15, wherein, in the warning step, when the power supply of the server apparatus having a low priority is stopped, the warning circuit is notified to that effect. In a power distribution control circuit connected to a plurality of server devices,
A power distribution control circuit comprising control means for performing distribution processing of surplus power of the plurality of server devices based on predicted power consumption values of the server devices.   The said control means produces | generates the distribution information which shows the distribution part of the surplus electric power in the said some server apparatus whole based on the said power consumption estimated value of each said server apparatus. Power distribution control circuit. Server information including supply power value, predicted power consumption value and surplus power value for each server device, and storage means storing a distribution condition indicating a surplus power distribution criterion,
19. The power distribution control circuit according to claim 18, wherein the control unit generates the distribution information based on the server information and the distribution condition. The control means issues a switching instruction to externally output the surplus power to a server apparatus having surplus power, and issues a switching instruction to input external power to a server apparatus having insufficient power. The power distribution control circuit according to claim 19. The server information includes minimum surplus power information indicating a surplus power threshold for each server device,
21. The power distribution control circuit according to claim 19 or 20, wherein the control unit generates the distribution information so that surplus power of each of the server devices is equal to or greater than a threshold value indicated by minimum surplus power information. The server information includes priority information indicating the priority of each of the server devices,
When there is a server device that is less than the predicted power consumption value even if the surplus power is shared among the server devices, the control means supplies power to the server device with a lower priority based on the priority information. The power distribution control circuit according to any one of claims 19 to 21, wherein the power distribution control circuit is stopped. Connected to the warning circuit,
18. The power distribution control circuit notifies the warning circuit of the fact that there is a server device with insufficient power even if surplus power is shared between the server devices. 23. The power distribution control circuit according to any one of 22 above. 24. The power distribution control circuit according to claim 23, wherein when the power supply of a server device having a low priority is stopped, the control means notifies the warning circuit to that effect. On the computer,
Receiving a predicted power consumption value of each server device from a plurality of server devices;
Based on the power consumption prediction value, the power supply control program, characterized in that to execute a sorting step of sorting processing of the surplus electric power of the plurality of server devices. In the computer,
26. The power supply according to claim 25, wherein a generation step of generating distribution information indicating distribution of surplus power for the plurality of server apparatuses is executed based on the predicted power consumption value of each of the server apparatuses. Control program. In the generating step,
The distribution information is generated based on server information including a supply power value, a predicted power consumption value, and a surplus power value for each server device, and a distribution condition indicating a surplus power distribution criterion. Item 27. The power supply control program according to Item 26. In the computer,
A server device having surplus power is instructed to switch to output the surplus power to the outside, and a server device having power shortage is instructed to perform a switching instruction to input external power. The power supply control program according to claim 27. The server information includes minimum surplus power information indicating a surplus power threshold for each server device,
29. The power supply control program according to claim 27 or 28, wherein, in the generation step, the distribution information is generated such that surplus power of each of the server devices is equal to or greater than a threshold value indicated by minimum surplus power information. In the computer,
If there is a server device that is less than the predicted power consumption value even if the surplus power is shared between the server devices, based on the priority information indicating the priority of each of the server devices, power control program according to any one of claims 27 to 29, characterized in that to execute a step of stopping the power supply. In the computer,
31. When a surplus power is shared between the server apparatuses and there is a server apparatus with insufficient power, a warning step for notifying the warning circuit to that effect is executed. The power supply control program according to item 1. 32. The power supply control program according to claim 31, wherein, in the warning step, when the power supply of the server apparatus having a low priority is stopped, the warning circuit is notified to that effect.

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