JP2009267880A - Information processing apparatus and power supply part control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processing apparatus capable of continuing operation even during a fault in any power supply part while suppressing increase in costs of the power supply parts when a redundant configuration is being adopted for the power supply parts, and to provide a power supply part control method. <P>SOLUTION: A wireless base station device 100 includes power supply parts 161A, 162A for supplying power that an A-side block 120A requires, while dividing the charge. A monitoring part 136 determines whether or not any fault occurs in any one of the power supply parts. If it is determined that any fault occurs in any one of the power supply parts, a CPU clock control part 137 reduces a clock frequency of a CPU 132. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information processing apparatus including a processing unit having a processing unit that operates according to a clock frequency, a plurality of power supply units that share and supply power required by the processing unit, and a power supply unit used in the information processing apparatus It relates to a control method.

  Conventionally, in an information processing apparatus used for providing an information communication service, such as a wireless base station apparatus that performs wireless communication with a mobile communication terminal or a router apparatus that performs relay processing of an IP packet, a power supply unit mounted on the apparatus In order to avoid disruption of the information communication service due to the failure, a redundant configuration in which a plurality of power supply units having similar performance is mounted is widely adopted.

For example, a configuration in which a power supply unit is duplicated using two power supply units having the same performance is known (see Patent Document 1). Thus, according to the configuration in which the power supply units are duplicated, the information processing apparatus can continue the operation even when a failure occurs in any one of the power supply units.
JP-A-9-1386946 (page 3, FIG. 1)

  However, the above-described conventional information processing apparatus has the following problems. In other words, in order to continue the operation of the information processing apparatus even when a failure occurs in any one of the power supply units, each power supply unit needs to have a performance capable of supplying power necessary for the operation of the information processing device. .

  For this reason, there is a problem that the cost of the power supply unit increases, and as a result, the price of the information processing apparatus increases.

  Therefore, the present invention has been made in view of such a situation, and when a redundant configuration of the power supply unit is adopted, the present invention operates even when a failure occurs in the power supply unit while suppressing an increase in the cost of the power supply unit. It is an object of the present invention to provide an information processing apparatus and a power supply unit control method that can continue the process.

  In order to solve the problems described above, the present invention has the following features. First, the first feature of the present invention is that the processing unit (for example, the A side block 120A) having a processing unit (for example, the CPU 132) that operates according to the clock frequency and the power required by the processing unit are shared. An information processing apparatus (wireless base station apparatus 100) including a plurality of power supply units (for example, power supply units 161A and 162A) to be supplied to the processing unit, and operating information (for example, indicating the operating state of each of the power supply units) Whether or not a failure has occurred in any of the power supply units based on the operation information acquired by the operation information acquisition unit (for example, the monitoring unit 136) that acquires the output voltage) and the operation information acquired by the operation information acquisition unit If the determination unit (for example, the monitoring unit 136) determines that a failure has occurred in any of the power supply units, the clock frequency is set to Control unit for Please (eg, CPU clock control unit 137) to increase the and a.

  According to such an information processing apparatus, when a plurality of power supply units that share the power required by the processing unit and supply the processing unit are provided, it is determined that a failure has occurred in any of the power supply units. In this case, the clock frequency for operating the processing unit decreases. If the clock frequency is lowered, the amount of processing in the processing unit is also reduced, so that power consumption of the processing unit is suppressed. That is, it is possible to reduce the power that a normal power supply unit should supply to the processing unit during a period when a failure occurs in any of the power supply units.

  That is, according to such an information processing apparatus, it is possible to continue the operation even when the power supply unit fails, while suppressing an increase in the cost of the power supply unit.

  A second feature of the present invention relates to the first feature of the present invention, wherein the operation information acquisition unit acquires each temperature of the power supply unit as the operation information, and the determination unit determines that the temperature is predetermined. When the value exceeds the value, the gist is to determine that a failure has occurred in the power supply unit in which the temperature exceeds a predetermined value.

  A third feature of the present invention relates to the first or second feature of the present invention, wherein the operation information acquisition unit acquires each output voltage of the power supply unit as the operation information, and the determination unit includes: When the output voltage falls below a predetermined value, the gist is to determine that a failure has occurred in the power supply unit where the output voltage falls below a predetermined value.

  A fourth feature of the present invention relates to the first to third features of the present invention, and the control unit is required in the processing unit when the number of power supply units is N (for example, 2). The gist is to reduce the clock frequency so that the power approaches (N-1) / N.

  A fifth feature of the present invention relates to the first to third features of the present invention, and includes a communication traffic amount acquisition unit that acquires a communication traffic amount (for example, the number of frames to be transferred) handled by the information processing apparatus, The gist of the invention is that the control unit determines the amount of decrease in the clock frequency based on the communication traffic amount acquired by the communication traffic amount acquisition unit.

  A sixth feature of the present invention relates to the first to fifth features of the present invention, wherein the control unit supplies the processing unit to the processing unit by the power source unit that is determined to have failed by the determination unit. The gist is to cut off the power supply.

  A seventh feature of the present invention relates to the first to sixth features of the present invention, wherein the determination unit determines whether or not the power supply unit that has been determined to have failed has recovered normally. The gist of the invention is that the control unit increases the clock frequency when it is determined that the power supply unit that has been determined to have failed by the determination unit has recovered normally.

  An eighth feature of the present invention is an information processing apparatus comprising: a processing unit having a processing unit that operates according to a clock frequency; and a plurality of power supply units that share the power required by the processing unit and supply the power to the processing unit A method of determining whether or not a failure has occurred in any of the power supply units based on the respective operating states of the power supply unit, and any one of the power supply units And a step of reducing the clock frequency when it is determined that a failure has occurred.

  A ninth feature of the present invention relates to the eighth feature of the present invention, wherein, in the step of determining, when the temperature of the power supply unit exceeds a predetermined value, the power supply unit exceeding the predetermined value The gist is to determine that a failure has occurred.

  A tenth feature of the present invention relates to the eighth or ninth feature of the present invention, and in the step of determining, when each output voltage of the power supply unit is lower than a predetermined value, the output voltage is predetermined. The gist is to determine that a failure has occurred in the power supply unit below the value.

  According to the features of the present invention, when a redundant configuration of a power supply unit is employed, an information processing apparatus and a power supply that can continue operation even when a power supply unit fails while suppressing an increase in cost of the power supply unit A part control method can be provided.

  Next, an embodiment of the present invention will be described. Specifically, (1) Overall configuration of information processing device, (2) Configuration of processing unit and power supply unit, (3) Operation of information processing device, (4) Action / effect, and (5) Other implementations A form is demonstrated.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.

  Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

(1) Overall Schematic Configuration of Information Processing Device FIG. 1 is an overall schematic configuration diagram of a radio base station device 100 configuring the information processing device in the present embodiment. As illustrated in FIG. 1, the radio base station apparatus 100 includes an RR head unit 110, a signal processing unit 120, a power supply unit 160, and a network connection unit 170.

  The RR head unit 110 (Remote Radio Head) is a small wireless communication device including an amplifier and an A / D converter. The RR head unit 110 can be installed at a location away from the signal processing unit 120 (for example, an upper part of a steel tower). The RR head unit 110 is connected to the signal processing unit 120 via an optical I / F (not shown).

  The signal processing unit 120 transmits and receives baseband signals to and from the RR head unit 110 via an optical I / F 135 (not shown in FIG. 1, see FIG. 2). The signal processing unit 120 also performs switching processing for distributing user data transmitted / received between the RR head unit 110 and the network connection unit 170 to each channel, and processing related to control data transmitted / received to / from a wireless communication terminal (not shown). Execute.

  The power supply unit 160 supplies power required in the signal processing unit 120. The power supply unit 160 includes a plurality of power supply units (see FIG. 2).

  The signal processing unit 120 is supplied from another power supply unit even when a failure such as a failure occurs in some power supply units by reducing the clock frequency of the CPU (see FIG. 2) mounted inside. The operation can be continued by the electric power.

  For example, the signal processing unit 120 suppresses power consumption in each board by reducing the clock frequency of the CPU to ½ of the normal time. If power consumption is reduced by lowering the clock frequency, failure such as failure may occur in some power supply units, and even if normal power supply unit cannot provide necessary power consumption during normal operation, The operation can be continued by the power supplied from the power supply unit.

  The network connection unit 170 is connected to the signal processing unit 120 via a bus (not shown). The network connection unit 170 is connected to a backhaul that is a communication network to which a plurality of radio base station devices 100 are connected.

(2) Configuration of Processing Unit and Power Supply Unit Next, the configuration of the signal processing unit 120 configuring the processing unit and the power supply unit 160 including a plurality of power supply units in the present embodiment will be described.

  FIG. 2 is a functional block configuration diagram of the signal processing unit 120 and the power supply unit 160. As shown in FIG. 2, the signal processing unit 120 is divided into an A side block 120 </ b> A and a B side block 120 </ b> B via a 3 × 3 main channel substrate 140.

  The A side block 120A includes modem boards 130A1 and 130A2, a CPU / memory board 150A, and an A side power supply unit 160A. The B-side block 120B includes a modem board 130B, CPU / memory boards 150B1 and 150B2, and a B-side power supply unit 160B.

  Each substrate has a CPU (processing unit) that operates according to a clock frequency. In the present embodiment, the A side block 120A and the B side block 120B constitute a processing unit.

 Hereinafter, the configuration of the A side block 120A will be mainly described, and the description of the B side block 120B will be omitted as appropriate.

  The modem board 130A1 includes a 5 × 5 fabric switch 131, a CPU 132, a modem 133, a CPRI 134, an optical I / F 135, a monitoring unit 136, and a CPU clock control unit 137. The modem board 130A2 and the modem board 130B have the same configuration as the modem board 130A1.

  The 5 × 5 fabric switch 131 time-divides user data and control data processed by the CPU 132, and the time-division data is transferred to the modem 133, the CPRI 134 (Common Public Radio Interface), or the 3 × 3 main channel board 140 at a predetermined timing. Relay. The 5 × 5 fabric switch 131 is also used to disconnect the power supply unit from the A-side block 120A when a failure such as a failure occurs in the power supply unit 161A or the power supply unit 162A configuring the A-side power supply unit 160A.

  A memory is connected to each of the CPU 132 and the modem 133. An optical I / F 135 is connected to the CPRI 134. The optical I / F 135 is connected to the RR head unit 110 via an optical cable (not shown).

  The monitoring unit 136 monitors the operating state of each functional block constituting the A side block 120A. In particular, in the present embodiment, the monitoring unit 136 monitors the operating state of the A-side power supply unit 160A. Specifically, the monitoring unit 136 acquires operation information indicating the operation states of the A-side power supply unit 160A, that is, the operation states of the power supply unit 161A and the power supply unit 162A. In the present embodiment, the monitoring unit 136 constitutes an operation information acquisition unit.

  The monitoring unit 136 acquires the temperatures and output voltages of the power supply unit 161A and the power supply unit 162A as operation information. Note that the monitoring unit 136 can also acquire the number of rotations of an air-cooling fan mounted on the A-side power supply unit 160A and the temperatures of various ICs constituting the A-side power supply unit 160A.

  Further, the monitoring unit 136 determines whether a failure has occurred in either the power supply unit 161A or the power supply unit 162A based on the acquired operation information of the A-side power supply unit 160A. In the present embodiment, the monitoring unit 136 constitutes a determination unit.

  When the temperature of the power supply unit 161A or the power supply unit 162A exceeds a predetermined value (for example, 70 ° C.), the monitoring unit 136 determines that a failure has occurred in the power supply unit in which the temperature exceeds the predetermined value. Further, when the output voltage of the power supply unit 161A or the power supply unit 162A is lower than a predetermined value (for example, 10.5V), the monitoring unit 136 has a failure in the power supply unit whose output voltage is lower than the predetermined value. Is determined.

  In addition, the monitoring unit 136 determines whether or not the power supply unit that has been determined to have failed has recovered normally.

  The CPU clock control unit 137 controls the frequency (clock frequency) of the clock that causes the CPU 132 to operate at a predetermined speed. In particular, in this embodiment, the CPU clock control unit 137 reduces the clock frequency when the monitoring unit 136 determines that a failure has occurred in either the power supply unit 161A or the power supply unit 162A. In the present embodiment, the CPU clock control unit 137 constitutes a control unit.

  Specifically, since the number (N) of the power supply units is 2 (power supply unit 161A and power supply unit 162A), the CPU clock control unit 137 requires 1 power in the A side block 120A of the signal processing unit 120. It is preferable to reduce the clock frequency so as to approach / 2 (= (2-1) / 2).

  In this embodiment, the power consumption of the CPU / memory board 150A and the CPU / memory boards 150B1 and 150B2 is reduced to 5/10 by reducing the clock frequency of the CPUs 152 to 155 to ½ of the normal time.

  Further, the power consumption of the modem boards 130A1 and 130A2 and the modem board 130B is suppressed to 7/10 by reducing the clock frequency of the CPU 132 to ½ of the normal time. That is, the power consumption of the modem board on which the modem 133 on which the number of CPUs to be mounted is small and the processing according to the communication speed in the physical layer is to be executed is less than that of the CPU / memory board.

  Since the A side block 120A is composed of two modem boards and one CPU / memory board, when a failure occurs in one power supply unit (for example, the power supply unit 161A), the other power supply unit ( The power supply unit 162A) supplies 1.26 times (= (0.7 + 0.7 + 0.5) / (3/2)) of power when the normal time is 1.

  On the other hand, the B-side block 120B is composed of one modem board and two CPU / memory boards, so that when one power supply unit (for example, the power supply unit 161B) fails, the other power supply The unit (power supply unit 162B) supplies 1.13 times (= (0.7 + 0.5 + 0.5) / (3/2)) of power when the normal time is 1.

  Further, the CPU clock control unit 137 can determine the amount of decrease in the clock frequency based on the communication traffic amount acquired by the communication traffic amount acquisition unit 141. For example, the CPU clock control unit 137 determines the amount of decrease in the clock frequency based on the number of transfer frames acquired by the communication traffic amount acquisition unit 141.

  When the number of transfer frames is less than a predetermined threshold, that is, when the amount of communication traffic is small, the CPU clock control unit 137 suppresses the power consumption of the A side block 120A by increasing the amount of decrease in the clock frequency. On the other hand, when the number of transfer frames is greater than a predetermined threshold, the CPU clock control unit 137 reliably transfers the frames via the A side block 120A by reducing the amount of decrease in the clock frequency.

  The CPU clock control unit 137 cuts off the supply of power to the A side block 120A of the signal processing unit 120 by the power supply unit determined by the monitoring unit 136 as having failed. Specifically, the CPU clock control unit 137 controls the 5 × 5 fabric switch 131 to block the supply of power to the A side block 120A by the power supply unit that is determined to have failed.

  Also, the CPU clock control unit 137 increases the clock frequency when it is determined that the power supply unit that has been determined to have failed by the monitoring unit 136 has recovered normally.

  The 3 × 3 main channel substrate 140 connects the A side block 120A and the B side block 120B. In the present embodiment, a redundant configuration is also adopted between the A side block 120A and the B side block 120B. For example, when a failure occurs in the CPU / memory board 150A of the A side block 120A, the processing is taken over by the CPU / memory board 150B1 or the CPU / memory board 150B2 of the B side block 120B.

  The 3 × 3 main channel substrate 140 is supplied with necessary power from one or both of the A side power supply unit 160A and the B side power supply unit 160B.

  The communication traffic amount acquisition unit 141 acquires a communication traffic amount (for example, the number of frames to be transferred) handled by the radio base station apparatus 100. The communication traffic amount acquisition unit 141 may estimate the communication traffic amount based on the number of packets to be transferred, the usage rate of the CPU, and the like in addition to the number of frames.

  Next, the configuration of the CPU / memory board 150B1 will be described mainly with respect to the differences from the modem board 130A1. The CPU / memory board 150A and the CPU / memory board 150B2 have the same configuration as the CPU / memory board 150B1.

  The CPU / memory board 150B1 includes a 1 × 4 fabric switch 151, CPUs 152 to 155, a monitoring unit 156, and a CPU clock control unit 157.

  The 1 × 4 fabric switch 151 time-divides user data and control data processed by the CPUs 152 to 155 and relays the time-divided data to other CPUs and the 3 × 3 main channel board 140 at a predetermined timing.

  Similar to the CPU clock control unit 137, the CPU clock control unit 157 controls the clock frequency supplied to the CPUs 152 to 155.

  The A-side power supply unit 160A includes power supply units 161A and 162A that share the power required by the A-side block 120A and supply the power to the A-side block 120A. The power supply unit 161A and the power supply unit 162A have the same performance (power supply and the like). Similarly, the B-side power supply unit 160B includes power supply units 161B and 162B that share the power required by the B-side block 120B and supply it to the B-side block 120B.

(3) Operation of Information Processing Device Next, the operation of the radio base station device 100 configuring the information processing device in the present embodiment will be described. Specifically, an operation in which the radio base station apparatus 100 reduces the clock frequency of the CPU when a failure of the power supply unit occurs will be described.

  FIG. 3 shows an operation flow in which the radio base station apparatus 100 reduces the clock frequency of the CPU when a failure of the power supply unit occurs. Hereinafter, the operation in the A side block 120A will be described as an example.

  In step S10, the monitoring unit 136 acquires the operating state of the A-side power supply unit 160A. Specifically, the monitoring unit 136 acquires the temperatures and output voltages of the power supply unit 161A and the power supply unit 162A as operation information.

  In step S20, the monitoring unit 136 determines whether a failure has occurred in either the power supply unit 161A or the power supply unit 162A based on the acquired operation information of the A-side power supply unit 160A. Specifically, when either the temperature of the power supply unit or the output voltage satisfies a predetermined condition, or when both the temperature of the power supply unit and the output voltage satisfy a predetermined condition, the monitoring unit 136 It is determined that a failure has occurred. Here, it is assumed that a failure has occurred in the power supply unit 161A.

  When it is determined that a failure has occurred in the power supply unit (YES in step S20), in step S30, the CPU clock control unit 137 is mounted on the modem boards 130A1 and 130A2 and the modem board 130B constituting the A side block 120A. Reduce the CPU clock frequency.

FIG. 4 shows an example of changes in the clock frequency of the CPU. As shown in FIG. 4, when it is determined that a failure has occurred in the power supply unit 161A (t ₁ in the figure), the clock frequency of the CPU decreases (for example, 1/2 of the normal time).

  In step S40, the CPU clock control unit 137 cuts off the supply of power to the A side block 120A by the power supply unit 161A determined to be a failure.

  In step S50, the operator of the radio base station apparatus 100 replaces the power supply unit 161A determined to have a failure with a spare power supply unit.

  In step S60, the monitoring unit 136 determines whether or not the power supply unit 161A has been normally restored.

When the power supply unit 161A is restored normally (YES in step S60), in step S70, the CPU clock control unit 137 increases the clock frequency of the CPU. Specifically, as shown in FIG. 4, when it is determined that the power supply unit 161A has been restored normally (t ₂ in the figure), the clock frequency of the CPU increases.

(4) Operation / Effect According to the radio base station apparatus 100, a failure occurs in any of the power supply unit 161A and the power supply unit 162A (power supply unit 161B and power supply unit 162B) of the A side block 120A (B side block 120B). If it is determined that the clock is operating, the clock frequency for operating the CPU is lowered. If the clock frequency is reduced, the processing amount in the A side block 120A is also reduced, so that the power consumption of the A side block 120A is suppressed. That is, it is possible to reduce the power that a normal power supply unit should supply to the A side block 120A during a period in which one of the power supply unit 161A and the power supply unit 162A is faulty.

  That is, according to radio base station apparatus 100, it is possible to continue the operation even when power supply unit 161A or power supply unit 162A fails, while suppressing an increase in cost of A-side power supply unit 160A.

  In this embodiment, when the number of power supply units is N (for example, 2), the clock frequency is set so that the power required in the A side block 120A (B side block 120B) approaches (N-1) / N. Reduce. For this reason, when a failure occurs in some of the power supply units, the power that should be provided by the normal power supply units approaches the power that each power supply unit should provide during normal operation. For this reason, the maximum electric power which each power supply part can supply can be made lower. That is, according to the radio base station apparatus 100, an increase in cost of the A-side power supply unit 160A can be further suppressed.

  In the present embodiment, the amount of decrease in the clock frequency is determined based on the communication traffic amount acquired by the communication traffic amount acquisition unit 141. Therefore, when the amount of communication traffic is small, a period in which a failure occurs in either the power supply unit 161A or the power supply unit 162A (power supply unit 161B or power supply unit 162B) by increasing the amount of decrease in the clock frequency. The power consumption of the A side block 120A (B side block 120B) can be further suppressed.

  In the present embodiment, the supply of power to the A side block 120A (B side block 120B) by the power supply unit that is determined to have failed is interrupted. For this reason, although the amount of processing decreases due to a decrease in the clock frequency, a stable operation can be continued even when a failure occurs in the power supply unit.

  In the present embodiment, when it is determined that the power supply unit has been restored normally, the clock frequency increases. For this reason, the radio base station apparatus 100 can quickly return to normal processing capability as soon as the power supply unit is restored.

(5) Other Embodiments As described above, the content of the present invention has been disclosed through one embodiment of the present invention. However, it is understood that the description and drawings constituting a part of this disclosure limit the present invention. should not do. From this disclosure, various alternative embodiments will be apparent to those skilled in the art.

  For example, in the embodiment described above, the A-side power supply unit 160A (B-side power supply unit 160B) is configured by the power supply unit 161A and the power supply unit 162A (power supply unit 161B and power supply unit 162B), that is, two power supply units. However, the A side power supply unit 160A may share power to be supplied to the A side block 120A by three or more power supply units.

  In the above-described embodiment, the signal processing unit 120 is configured by the A side block 120A and the B side block 120B. However, the signal processing unit 120 may not necessarily be configured by a plurality of blocks. .

  In the embodiment described above, the supply of power to the A side block 120A (B side block 120B) by the power supply unit determined to have failed has been cut off, but the supply of the power is not necessarily cut off. It does not have to be. In the above-described embodiment, the amount of decrease in the clock frequency is determined based on the communication traffic amount acquired by the communication traffic amount acquisition unit 141. However, such a process may not be executed. .

  In the above-described embodiment, the radio base station apparatus 100 has been described as an example. However, the present invention can also be applied to an information processing apparatus other than the radio base station apparatus 100, for example, a router apparatus or a server.

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

It is a whole schematic block diagram of the wireless base station apparatus 100 which comprises the information processing apparatus which concerns on embodiment of this invention. It is a block diagram of the signal processing part 120 which comprises the process part which concerns on embodiment of this invention, and the electric power supply part 160 containing a several power supply part. It is a figure which shows the operation | movement flow in which the radio base station apparatus 100 which concerns on embodiment of this invention reduces the clock frequency of CPU with generation | occurrence | production of the failure of a power supply part. It is a figure which shows the example of a change of the clock frequency of CPU which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Wireless base station apparatus, 110 ... RR head part, 120 ... Signal processing part, 120A ... A side block, 120B ... B side block, 130A1, 130A2, 130B ... Modem board, 131 ... 5x5 fabric switch, 132 ... CPU, 133 ... modem, 134 ... CPRI, 135 ... optical I / F, 136 ... monitoring unit, 137 ... CPU clock control unit, 140 ... 3x3 main channel board, 141 ... communication traffic amount acquisition unit, 150A, 150B1, 150B2 ... CPU Memory board 151 ... 1x4 fabric switch 152-155 ... CPU, 156 ... monitoring unit, 157 ... CPU clock control unit, 160 ... power supply unit, 160A ... A side power supply unit, 160B ... B side power supply unit, 161A, 161B , 162A, 162B ... power supply unit, 70 ... network connection unit

Claims (10)

A processing unit having a processing unit operating according to a clock frequency;
An information processing apparatus comprising a plurality of power supply units that share the power required by the processing unit and supply the power to the processing unit,
An operation information acquisition unit for acquiring operation information indicating each operation state of the power supply unit;
A determination unit that determines whether a failure has occurred in any of the power supply units based on the operation information acquired by the operation information acquisition unit;
An information processing apparatus comprising: a control unit that reduces the clock frequency when the determination unit determines that any of the power supply units has a failure. The operation information acquisition unit acquires each temperature of the power supply unit as the operation information,
The information processing apparatus according to claim 1, wherein the determination unit determines that a failure has occurred in the power supply unit in which the temperature exceeds a predetermined value when the temperature exceeds a predetermined value. The operation information acquisition unit acquires each output voltage of the power supply unit as the operation information,
The information processing apparatus according to claim 1, wherein the determination unit determines that a failure has occurred in the power supply unit in which the output voltage is lower than a predetermined value when the output voltage is lower than a predetermined value.   4. The control unit according to claim 1, wherein when the number of the power supply units is N, the control unit reduces the clock frequency so that power required by the processing unit approaches (N−1) / N. 5. The information processing apparatus according to one item. A communication traffic amount acquisition unit for acquiring a communication traffic amount handled by the information processing apparatus;
The information processing apparatus according to any one of claims 1 to 3, wherein the control unit determines a decrease amount of the clock frequency based on the communication traffic amount acquired by the communication traffic amount acquisition unit.   6. The information processing apparatus according to claim 1, wherein the control unit interrupts supply of power to the processing unit by the power supply unit that is determined to have a failure by the determination unit. . The determination unit determines whether or not the power supply unit that has been determined to have failed has recovered normally,
7. The control unit according to claim 1, wherein the control unit increases the clock frequency when it is determined that the power supply unit that has been determined to have failed by the determination unit has recovered normally. The information processing apparatus described. A processing unit having a processing unit operating according to a clock frequency;
A power supply unit control method used in an information processing apparatus comprising a plurality of power supply units that share the power required by the processing unit and supply the power to the processing unit,
Determining whether a failure has occurred in any of the power supply units based on the respective operating states of the power supply units;
And a step of reducing the clock frequency when it is determined that a failure has occurred in any of the power supply units.   The power supply unit control method according to claim 8, wherein in the determining step, when the temperature of the power supply unit exceeds a predetermined value, it is determined that a failure has occurred in the power supply unit in which the temperature exceeds a predetermined value. .   The determination step according to claim 8 or 9, wherein when each output voltage of the power supply unit is lower than a predetermined value, it is determined that a failure has occurred in the power supply unit whose output voltage is lower than a predetermined value. The power supply unit control method described.

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