JP6892330B2 - Server control system, emergency power generation equipment, server control method and emergency power generation equipment control method - Google Patents

Description

The present invention includes a server control system, power generation equipment, a control method and a control method for emergency power generation equipment server emergency.

In a data center or computer center (hereinafter referred to as DC) building, the supply of power to the living room in which the server is located, for example, the server room, may be stopped due to a power failure or a failure of the power supply equipment. When the power supply is stopped, for example, one or more large-capacity emergency generators of several thousand KVA class are installed in order to continue the operation of the equipment such as the server and the air conditioner in the server room (1 or more). For example, see Patent Document 1).

Generally, when the power supply to the server room is stopped, the operating rate of all the servers is maintained at 100%, and at that time, the air conditioner can be operated in response to the temperature rise due to the heat generated by the servers. A generator with capacity is required.

JP-A-2002-238184

However, the large-capacity emergency generator as described above is extremely expensive and requires a large installation space, which is an obstacle to reducing the initial cost when constructing a building such as a DC facility. ..
In addition, a large-capacity emergency generator has extremely high running costs and maintenance costs, and the cost burden for equipment management and operation is large.

The present invention has been made in view of such circumstances, and reduces the capacity of the emergency generator, the initial cost when constructing a building such as a DC facility, and the cost for equipment management and operation. it is an object capable server control system, emergency power equipment, to provide a control method and a control method for emergency power generation facilities of the server.

The present invention has been made to solve the problems described above, the server control system of the present invention, when the power supply by the commercial power supply is stopped, power is supplied from one or more emergency generator that a server control server control system that control the conduct of, and the server control unit for controlling server, the predetermined according to the generating capacity of one or more emergency generator, setting the clock frequency of the server storage has a a storage unit that is, a, due to the supply of power by a commercial power supply is stopped, the server control unit reads the setting clock frequency stored in the storage unit, Ru operate the said server the clock frequency and wherein the Turkey be set in the setting clock frequency.

The server control system of the present invention is characterized in that the server is a plurality of servers, and each of the servers constituting the plurality of servers is set to the set clock frequency.

Server control system of the present invention, each of the servers in the plurality of servers, said set clock frequency of different frequencies, characterized in that it is set.

The server control system of the present invention is characterized in that the set clock frequency is set so that the total power consumption of the plurality of servers is equal to or less than the power generation capacity.

The emergency power generation facility of the present invention includes the server control system described in any of the above, an abnormality detection unit that detects that the power supply from the commercial power source has been stopped, and the abnormality detection unit supplies power from the commercial power source. It is characterized by having one or more emergency generators, which are activated when it detects that the power is stopped.
Server control method of the present invention, when the power supply by the commercial power supply is stopped, one or more of a control method of a server to which electric power is supplied from the emergency generator, power is supplied by the commercial power source stops As a result , the server control unit reads the set clock frequency of the server, which is predetermined according to the power generation capacity of the one or more emergency generators, from the storage unit, and determines the clock frequency for operating the server. It is characterized in that it is set to the set clock frequency.
The control method of the emergency power generation facility of the present invention includes an abnormality detection unit that detects that the power supply from the commercial power source is stopped, and a case where the abnormality detection unit detects that the power supply from the commercial power source is stopped. One or more emergency generators, a server control unit that controls the server, and a preset clock frequency of the server according to the power generation capacity of the one or more emergency generators. It is a control method of an emergency power generation facility having a storage unit and a server control system having a storage unit, and the abnormality detection unit detects that the supply of electric power by a commercial power source is stopped. The server control unit reads the set clock frequency of the server predetermined according to the power generation capacity of the one or more emergency generators from the storage unit, and sets the clock frequency for operating the server as the set clock frequency. It is characterized by setting to.

According to the present invention, when a power failure signal is received, the electric capacity of the emergency generator installed in the facility is provided by providing a mechanism for reducing the clock frequency of each server to reduce the total power consumption of the server. Can be reduced. Even if the electric capacity of the emergency generator is reduced, the server can be continued to operate in a degenerate operation without stopping the server in the event of a power failure. Thus, the initial cost in constructing the DC facility as compared with the prior art, and facility management operations the cost can be reduced server control system, emergency power equipment, server control method and emergency power It becomes possible to provide a control method for equipment.

It is a schematic block diagram which shows the configuration example of the uninterruptible server system using the server control system by one Embodiment of this invention. It is a figure which shows an example of correspondence with the CPU load and the power consumption of a server in a power capping function. About the operation (time series change) of the power capping function in the server in each state when the supply of commercial power (commercial power supply) is temporarily stopped (power supply is cut off) and then the commercial power supply is restored. It is a figure explaining. It is a figure which shows an example of the calculation of the capacity of the electric power generated by the emergency generator 12 installed in this server room corresponding to the power consumption of the server arranged in a server room.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic block diagram showing a configuration example of an uninterruptible server system using the server control system according to the embodiment of the present invention. In FIG. 1, the uninterruptible server system 10 includes a server control system 11, an emergency generator 12, a server 13_1, a server 13_2, a server 13_3, ..., A server 13_n, an air conditioner 14, a power abnormality detector 15, and a power path switching. Each of the device 16 and the power path switch 17 is provided. Hereinafter, when all of the server 13_1, the server 13_2, the server 13_3, ..., And the server 13_n are shown, it is described as the server 13. In the present embodiment, commercial power is normally supplied to the server 13 via the power path switch 16. When the power abnormality detector 15 detects a power failure of the commercial power source, the emergency generator 12 is started, and the power supply system is switched from the commercial power source to the emergency generator 12 by the power path switch 16. As a result, the power supply to the server 13 is continued by the emergency generator 12.

The emergency generator 12 is an emergency power generation facility that generates electric power to be supplied in an emergency when commercial electric power is not supplied, and generates electric power for operating each of the server 13 and the air conditioner 14 in the event of a power failure.
When the power failure detection signal from the power abnormality detector 15 is supplied, the server control system 11 issues an instruction signal to each of the servers 13 to operate in a degenerate operation by the power capping function.
The server control system 11 includes an abnormality detection unit 111, a server control unit 112, and a storage unit 113, respectively.

The abnormality detection unit 111 detects the stop signal supplied from the power abnormality detector 15, and outputs a confirmation signal indicating that the stop signal has been supplied to the server control unit 112.
Based on the confirmation signal from the abnormality detection unit 111, the server control unit 112 sets a control signal for lowering the clock frequency of the clock that operates the CPU (the clock frequency of the clock that operates the server 13) at a preset clock frequency. It is output to the server 13 together with the numerical value.

In the storage unit 113, a numerical value of the clock frequency of the CPU that operates the server 13 (the numerical value of the preset clock frequency, hereinafter referred to as a set clock frequency) used for reducing the power consumption of the server 13 is previously stored. Written and remembered.

Here, the set clock frequency is set lower than the normal clock frequency in order to reduce the power consumption of each of the servers 13 as described above. Further, the set clock frequency is timely set so that the power consumption of each of the servers 13 corresponds to the total power capacity of the power generated by the emergency generator 12 provided corresponding to the server room. To.
Further, when the server control unit 112 outputs the control signal, the server control unit 112 reads the set clock frequency from the storage unit 113, adds the set clock frequency to the control signal, and outputs the control signal to each of the servers 13.

Here, it is premised that each of the servers 13 has a power capping (power limiting) function. This power capping function indicates, in the present embodiment, a function of reducing the clock frequency of the clock that operates the CPU in the server and setting the upper limit of the power consumption by the server. Therefore, when each of the servers 13 receives the control signal from the server control unit 112, it changes the clock frequency of the CPU clock from the clock frequency in the normal state to the set clock frequency added to the control signal, and consumes the server. Reduce power.

FIG. 2 is a diagram showing an example of correspondence between the CPU load and the power consumption of the server in the power capping function. In FIG. 2, the vertical axis represents the CPU load (%) and the horizontal axis represents the power consumption (W) of the server. FIG. 2 shows an example of a change in the power consumption of the server corresponding to the numerical value of the CPU load. This CPU load is shown as 100%, for example, when the clock frequency of the clock supplied to the CPU is the maximum value in the specifications.

In the example of FIG. 2, when the clock frequency of the CPU clock is the maximum value, that is, when the CPU load is 100%, the power consumption of the server is 340 (W).
When the CPU clock is set to the set clock frequency and the CPU load is 90% corresponding to the frequency value of the set clock frequency, the power consumption of the server is 260 (W) and the CPU load is 46. In the case of%, the power consumption of the server is 140 (W). By setting the CPU load to 46% in this way, the power consumption of the server can be reduced to about 140 W / 340 W = about 41% as compared with the case where the CPU load is 100.
How much this CPU load should be depends on the power capacity of the power generated by the emergency generator 12 installed in this server room, or how much the processing capacity of the application operated by each of the servers 13 is reduced. It is necessary to set depending on whether to let it.

Further, each of the server 13_1, the server 13_2, the server 13_3_, ..., And the server 13_n may be set with a set clock frequency having a numerical value of a different frequency.
Further, the storage unit 113 specifies a server 13 that changes the clock frequency to the set clock frequency in advance in an emergency, and in an emergency, the clock frequency of the server 13 designated in advance in the storage unit 113 is set to the set clock frequency. It can also be changed to, and the clock frequency of the other server 13 is not changed.
As described above, when each of the servers 13 is operated at a different set clock frequency, the total power consumption of each of the servers 13 in the server room is equal to or less than the power generated by the emergency generator 12, that is, the power capacity to be generated. The set clock frequency of each server 13 is calculated and set in advance so as to be as follows (power capacity that can be operated by the power generated by the emergency generator 12).

FIG. 3 shows the operation (time) of the power capping function in the server in each state when the supply of commercial power (commercial power supply) is temporarily stopped (power supply is cut off) and then the commercial power supply is restored. It is a figure explaining (series change).
In FIG. 3, the item of facility power supply shows the supply state of commercial power supply to the server room. With commercial power supply indicates a normal state in which commercial power is supplied to the server room. Power outage indicates an emergency state in which commercial power is not supplied to the server room due to a power outage or the like. In this emergency state, power is supplied from the emergency generator 12 to the server room. Commercial power restoration indicates that the power has been restored and the power has been restored, that is, the normal state has been restored.

The item of power capping of the server indicates whether or not the power capping in the server 13 is functioning. When this item is OFF, it indicates that the power capping function is not working. When this item is ON, it indicates that the power capping function is working. At this time, the processing capacity of the server 13 is reduced due to the degenerate operation, that is, the CPU load is reduced, and the power consumption of the server 13 is reduced.

The item of server maximum power consumption shows the state of the CPU load and the power consumption corresponding to the CPU load.
In FIG. 3, when there is a commercial power supply, the power capping function of the server 13 does not work because it is in a normal state. At this time, the maximum power consumption of the server is 100% of the CPU load, and the power consumption is 340 W.
On the other hand, when the commercial power supply is turned off, the emergency generator 12 starts power generation due to an emergency state, the power capping function of the server 13 operates under the control of the server control unit 112, and the CPU clock is normally set. The clock frequency of is changed to the set clock frequency. At this time, the power consumption is reduced to 120 W depending on the set clock frequency, so that the CPU load is reduced to 35%. By reducing the CPU load to 35%, the power consumption of 340W-120W = 220W is reduced.
Further, when the commercial power supply is returned to the presence, the emergency state is returned to the normal state, so that the power capping function of the server 13 is returned to the state in which the power capping function of the server 13 does not work under the control of the server control unit 112. As a result, the maximum power consumption of the server is 100% of the CPU load, and the power consumption is 340 W.

FIG. 4 is a diagram showing an example of calculating the capacity of the electric power generated by the emergency generator 12 installed in the server room corresponding to the power consumption of the server arranged in the server room.
FIG. 4A is a diagram for obtaining the installed capacity (capacity of electric power to be generated) required for the emergency generator 12 when the CPU load is 100% (operating rate 100%).
The entire server 13 in the server room has 1500 racks (for example, one rack is converted as one server), and each rack requires power consumption of 6 kW. Therefore, since there are 1500 6 kW servers, the power consumption of the server 13 in the entire server room is 9000 kW. Here, when PUE (Power Usage Effectiveness) is set to 1.5 and the power other than the server such as air conditioning is taken into consideration, the power of 13500 kW is required for the entire DC facility. As a result, three emergency generators 12 are required when preparing one 4500 kW generator. Further, assuming that any of the emergency generators 12 fails, one spare (yobi) emergency generator 12 is installed, so that a total of four 4500 kW generators will be installed.

In FIG. 4B, half of the 1500 racks, half of which are 750 racks, are changed to the set clock frequency by the power capping function, the CPU load is 33%, the power consumption is reduced to 2 kW, and the rest. Half of is operated at a normal clock frequency, leaving the CPU load at 100%.
As a result, the power consumption of the entire server is 6 kW × 750 + 2 kW × 750 = 6000 kW. Then, as in the case of FIG. 4A, considering PUE (coefficient corresponding to the power consumption of the entire DC including the air conditioner 14 and the lighting equipment) as 1.5, the DC facility as a whole is 9000 kW. Power is required. As a result, two emergency generators 12 are required when preparing one 4500 kW generator. Further, assuming that any of the emergency generators 12 fails, one emergency generator 12 is installed as a spare (yobi), so that a total of three 4500 kW generators will be installed.
As described above, in an emergency, one emergency generator 12 can be reduced by using the power capping function of the server.

As described above, according to the present embodiment, the server control system 11 activates the power capping function for all or a part of the servers arranged in the server room in an emergency when commercial power is not supplied. In order to reduce the clock frequency of the CPU clock and reduce the CPU load, it is possible to reduce the power consumption of the entire server while the server continues to operate in the event of an emergency such as a power outage. The capacity of the generated electric power can be reduced. As a result, according to the present embodiment, by reducing the number or capacity of the emergency generators, the initial cost when constructing the DC facility, the cost for equipment management and operation, and the installation space are reduced. Can be done.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the design and the like within a range not deviating from the gist of the present invention are also included.

10 ... Uninterruptible server system 11 ... Server control system 12 ... Emergency generator 12
13, 13_1, 13_2, 13_3, 13_n ... Server 14 ... Air conditioner 15 ... Power abnormality detector 16 ... Power path switch 111 ... Abnormality detection unit 112 ... Server control unit 113 ... Storage unit

Claims (7)

When the supply of power by the commercial power supply is stopped, a server control system that performs control of the server to which electric power is supplied from one or more emergency generator,
It has a server control unit that controls a server, and a storage unit that stores a set clock frequency of the server, which is predetermined according to the power generation capacity of the one or more emergency generators.
Along with the power supply by the commercial power supply is stopped, the server control unit reads the setting clock frequency stored in the storage unit, sets a torque lock frequency is operated the server to the set clock frequency you
Server control system, wherein a call. The server control system according to claim 1, wherein the server is a plurality of servers, and each of the servers constituting the plurality of servers is set to the set clock frequency. Wherein each of the plurality of servers in the server, the server control system according to claim 2 in which the set clock frequency of different frequencies, characterized in that it is set. The set clock frequency is set so that the total power consumption of the plurality of servers is equal to or less than the power generation capacity.
The server control system according to claim 2 or 3. The server control system according to any one of claims 1 to 4.
Anomaly detector that detects that the power supply from the commercial power supply has been stopped,
One or more emergency generators that are activated when the abnormality detector detects that the power supply from the commercial power supply is stopped.
An emergency power generation facility characterized by having. When the power supply by the commercial power supply is stopped, a control method of a server to which electric power is supplied from one or more emergency generator,
Along with the power supply by the commercial power supply is stopped, the server control unit reads the setting clock frequency of the server determined in advance in accordance with the power generation capacity of the one or more emergency generator from the storage unit, A server control method, characterized in that a clock frequency for operating the server is set to the set clock frequency. Anomaly detector that detects that the power supply from the commercial power supply has been stopped,
One or more emergency generators that are activated when the abnormality detector detects that the power supply from the commercial power supply is stopped.
A server control system having a server control unit that controls a server and a storage unit that stores a set clock frequency of the server, which is predetermined according to the power generation capacity of the one or more emergency generators.
Is a control method for emergency power generation equipment
As the abnormality detection unit detects that the power supply from the commercial power source has been stopped, the server control unit has the server determined in advance according to the power generation capacity of the one or more emergency generators. The set clock frequency of is read from the storage unit, and the clock frequency for operating the server is set to the set clock frequency.
A control method for emergency power generation equipment, which is characterized by this.

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