JP6114172B2 - How to determine the location of equipment installed in a server room - Google Patents

Description

  The present invention relates to a method for determining a position of a device installed in a server room, and more particularly, a method for determining a position of a device installed in a server room for efficiently removing heat generated from a load on the server. About.

  In recent years, with the rapid increase in the use of ICT (Information and Communication Technology) by companies, new establishment of server rooms for installing server racks for storing servers has increased rapidly. In the server room, in order to cool electronic boards such as the CPU and power supply unit of the server, the problem of increase in power consumption in the cooling operation of air conditioning is becoming serious, and improvement of cooling efficiency by air conditioning is required.

  The cold air blown out from the indoor unit of the air conditioner installed in the server room is sent to the server rack. The cool air sent in is sucked into the server by a fan built in the server stored in the server rack, and cools the load on the server.

  The cooling efficiency of the server load depends on physical conditions such as the distance from the indoor unit of the air conditioner installed in the server room to the server rack, the shape of the server rack, and the dimensions of the server rack. In addition, since a work space for maintaining servers, server racks, and the like is required in the server room, it is also necessary to satisfy conditions such as dimensions related to the work space. In this specification, ICT equipment refers to gateways, routers, hubs, and the like. Moreover, in this specification, the equipment installed in the server room includes servers, server racks, ICT equipment, and indoor units of air conditioners.

  Non-Patent Document 1 defines physical conditions such as the dimensions and installation direction of furniture such as bookshelves, TVs, personal computers, sofas, desks, and indoor units, and installs home furniture to satisfy the physical conditions. A method for determining a position to perform is disclosed.

Y. Akazawa, Y. Okada, and K. Niijima, “Automatic 3D scene generation based on contact constraints” in Proc. Conf. Computer Graphics and Artificial Intelligence, pp. 593-598, 2005

  However, in the technique described in Non-Patent Document 1, air is blown out from the indoor unit of the air conditioner even when physical conditions such as the shape and size of the server rack and the size of the work space for maintenance are taken into consideration. Thermohydrodynamic conditions such as cold air flow are not considered. Therefore, for example, it is not assumed that a place where the exhaust heat of the server accumulates due to the shape unique to the server room.

  If air is taken in from a place where heat has accumulated, hot air will be sent into the server. Therefore, the temperature detected by the temperature sensor in the server may exceed the upper limit temperature, and the server may not operate stably.

  In order to operate the server stably, a sufficient amount of cool air must be sent to the server, and it is necessary to increase the amount of cool air blown from the indoor unit of the air conditioner or lower the set temperature. Therefore, there is a problem that the power consumed by the indoor unit also increases.

  Therefore, in order to eliminate the place where the exhaust heat of the server accumulates and to supply cool air efficiently to the server, it is necessary to adjust the position of the server rack for each server rack storing the server. Therefore, the position of the server rack is changed for each server room while performing trial and error based on an empirical rule, and there is a problem that it takes time and costs increase.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a device installed in a server room so as to satisfy physical conditions and thermohydrodynamic conditions in the server room. It is to provide a method for determining the position.

In order to achieve such an object, according to a first aspect of the present invention , there is provided a method for determining a position of a device installed in a server room having an indoor unit in a computer, the dimensional information of the server room and The first parameter including the dimension information of the device installed in the server room and the position information of the device installed in the server room is received by the input unit of the computer and stored in the storage unit of the computer A step of storing, a step of modeling the arrangement of the devices installed in the server room based on the first parameter in the computer structure calculation unit, and storing the model in the storage unit ; The temperature information of the cool air blown out from the indoor unit for cooling, the suction temperature information of the server, the speed information of the cool air blown out of the indoor unit, A second parameter including a heat information resulting from the server load, and received at the input unit, and storing in the storage unit, based on the second parameter is the air supply in the server a simulation of the cold air flow, have rows in the simulation of the computer, and storing the simulation data in the storage unit, the calculation unit of the computer, the cost function and the simulated data showing the energy-saving rate of the server room use, by calculating the first parameter and the calculation formula obtained by substituting while changing the second parameter, and storing in the storage unit, the first parameter in the equation and the first first parameter value obtained by substituting the second parameter is such that the minimum and the The combination of the parameters of the, as determined by decision of the computer, characterized by comprising the steps of determining the position of the device installed in the server room. A second aspect of the present invention is the method according to the first aspect, wherein the calculation formula includes a volume of a device installed in the server room and a distance between the devices installed in the server room. A first calculation formula showing the relationship between the server, the suction temperature of the server, the speed of the cool air near the suction port of the server, the pressure of the cold air near the suction port of the server, and the server room. And calculating the calculation formula and storing the calculation formula in the storage unit in the storage unit by changing the first parameter. However, the first calculation formula is calculated by the calculation unit of the computer and stored in the storage unit, and the first parameter and the second parameter are calculated using the simulation data. Calculating the second calculation formula in the calculation unit while changing the meter, and storing it in the storage unit, the combination of the first parameter and the second parameter, The step of determining by the determination unit of the computer to determine the position of the device installed in the server room is that the suction temperature of the server is less than a threshold value, and the first parameter is substituted into the first calculation formula. A combination of the first parameter and the second parameter that minimizes the value obtained by substituting the second parameter into the second calculation formula, and It includes a step of determining by a determination unit and determining a position of a device installed in the server room.

  As described above, according to the present invention, it is possible to efficiently supply the cold air blown from the indoor unit of the air conditioner to the load in the server. Therefore, the cooling efficiency of the server room is increased, and the power saving of the air conditioner can be achieved. In addition, it is possible to secure a distance for maintenance of equipment installed in the server room.

It is a functional block diagram of the software for functioning the system which determines the position of the apparatus installed in the server room concerning one Embodiment of this invention. It is a figure showing an example of modeling of the structure of a server room concerning one embodiment of the present invention. It is a figure which shows an example of the top view showing the position of the various apparatuses installed in the server room concerning one Embodiment of this invention. It is a figure which shows an example of the top view showing the position of the various apparatuses installed in the server room after being calculated by the system concerning one Embodiment of this invention. It is a figure which shows the relationship between the number of server racks and the energy saving rate of an air conditioner concerning one Embodiment of this invention. It is a figure which shows the flowchart of the method of determining the position of the apparatus installed in a server room concerning one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(System configuration for determining the location of equipment installed in the server room)
FIG. 1 shows a functional block diagram of software for causing a system for determining the position of a device installed in a server room to function according to an embodiment of the present invention. A system 10 for determining the position of a device installed in a server room according to an embodiment of the present invention includes an input unit for receiving input of parameters such as server room dimensions, server rack dimensions, and indoor unit set temperatures. 11 and a structure calculation unit 12 for modeling the server room.

  The system 10 for determining the position of a device installed in a server room according to an embodiment of the present invention is modeled based on the value of the temperature of cold air blown from an indoor unit installed in the server room. A simulation unit 13 for simulating the flow of cool air in the server room is provided.

  A system 10 for determining the position of a device installed in a server room according to an embodiment of the present invention is installed in a server room volume, an indoor unit volume, an ICT device volume, a server rack volume, and a server rack. A calculation unit 14 that calculates a predetermined calculation formula (to be described later) representing a relationship between the volume of the server, the coordinates of the server rack in the server room, the angle of the server rack with respect to the wall surface of the server room, the distance between the server racks, and the like. .

  In the system 10 for determining the position of a device installed in a server room according to an embodiment of the present invention, the suction temperature of each server is below a threshold (for example, 25 ° C.), and the devices installed in the server room are And a determination unit 15 that determines a combination of parameters relating to the position of the device installed in the server room, which optimizes the distance between the device and the wall of the server room. The server suction temperature is the temperature near the suction port of each server installed in the modeled server room.

  A system 10 for determining a position of a device installed in a server room according to an embodiment of the present invention includes a display unit 16 for displaying a server room structural model, a simulation of heat flow, a server room structural model, a predetermined And a storage unit 17 for storing calculation formulas and the like. The display unit 16 includes a monitor, a display, and a printer. The storage unit 17 includes a random access memory (RAM), a read only memory (ROM), a hard disk drive (HDD), and an external memory.

(Modeling the server room)
FIG. 2 shows an example of modeling the structure of a server room according to an embodiment of the present invention. In the present embodiment, modeling of the structure of a server room will be described by using a general under-floor air-conditioning system. FIG. 2A shows a plan view of the server room as viewed from A, and FIG. 2B shows a perspective view of the server room as viewed from an oblique direction. FIG. 2C illustrates a side view of the server room viewed from the C direction, and FIG. 2D illustrates a side view of the server room viewed from the D direction.

The server room 20 includes server rack rows 21a to 21f that store a plurality of servers, and indoor units 22a to 22d that blow out cool air for cooling the load in the server. Server rack column 21f includes a server rack column 21f ₁ ~ server rack column 21f _7. Each server has a built-in fan for taking in cold air from the indoor units 22a to 22d through the suction port.

  As a premise for carrying out the numerical calculation in the simulation of the heat flow in the server room 20, a model of the structure of the server room 20 is generated by the structure calculation unit 22. For example, a lattice point model is applied to the model of the structure of the server room 20. The volume of the server room 20, the number and volume of the server rack rows 21a to 21f, the number and volume of the indoor units 22a to 22d, the number and volume of servers, the coordinates of the server rack in the server room, and the server rack relative to the wall surface of the server room Based on the first parameters including the angle, the distance between the server racks, the position of the load in the server, the position of the fan built in the server, and the dimensions of the work space required for maintenance, the structure of the server room 20 Modeled.

(Modeled simulation of heat flow in server room)
A thermohydrodynamic equation is used for the numerical calculation of the heat flow in the server room 20. The heat flow of the entire server room 20 includes a second parameter including a predetermined thermohydrodynamic equation, the speed of the cool air blown out from the indoor unit, the temperature of the cool air, the pressure of the cool air, and the amount of heat generated from the server load. Based on the value obtained by the substitution and the created server room structure model, it can be grasped by simulating with the simulation unit 13. When the heat flow in the server room is simulated, the heat flow in the server room is displayed on the display unit 16. Also, the value of the suction temperature of each server is calculated by simulation.

(Calculation formula for determining the location of equipment installed in the server room)
In this embodiment, the position of the apparatus installed in a server room is determined using a cost function. In the present embodiment, it is assumed that the volume of the server room and the volume of each device installed in the server room are determined in advance as a premise for using the cost function. Consider how many devices can be installed in a server room in a server room having a predetermined volume. If the equipment installed in the server room is installed as much as possible in the server room, the distance for maintenance of the equipment installed in the server room cannot be secured. On the other hand, if the maintenance distance for the devices installed in the server room is longer than necessary, the number of devices installed in the server room is limited. Therefore, considering the volume of the server room and the volume of each device installed in the server room, it is necessary to determine the number of devices installed in the server room and the distance required for maintenance in a balanced manner. Come. Therefore, by using the cost function, it is possible to install the equipment installed in the server room with the maximum number of equipments installed in the server room while maintaining the distance required for maintenance of the equipment installed in the server room. It becomes.

  First, it is assumed that the device pj installed in the server room p0 is installed in the server room p0. j indicates the number of types of devices installed in the server room p0. In the present embodiment, it is assumed that P1 servers p1, P2 server racks p2, P3 indoor units p3, and P4 ICT devices p4 are installed in the server room p0. In addition, the server p1, the server rack p2, the indoor unit p3, and the ICT device p4 are installed independently at arbitrary positions in the server room.

The first cost function is shown in the following (Formula 1).
C _pj (x ₁ , x ₂ ) = βexp (-γ ₁ x ₁ ² ) + εexp (-γ ₂ x ₂ ² ) (Formula 1)

The left side of (Expression 1) represents the cost function of the device pj installed in the server room p0. In the right side of (Formula 1), β and ε are proportional constants, and γ ₁ and γ ₂ are constants (for example, 0.01). x ₁ is the difference between the distance D1 and the maintenance distance d1 between the device installed in the server room p0, x ₂ is the distance between the device and the wall surface of the server room p0 installed in the server room p0 This is the difference between D2 and the maintenance distance d2. The maintenance distance d1 and the maintenance distance d2 are distances necessary for maintaining the equipment pj installed in the server room p0.

For example, the distance between the server rack (p2) ₁ and the server rack (p2) ₂ and D1, maintenance distance required between the server rack (p2) ₁ and the server rack (p2) ₂ When d1 The variable x ₁ is expressed by the following (Equation 2).
_{x 1 = (D1-d1)} ( Equation 2)

In (Expression 2), let J1 be the number of combinations of the position of the server rack (p2) _{1 and} the position of the server rack (p2) ₂ such that x ≧ 0.

Further, if the distance between the wall surface W of the server room p0 and the server rack (p2) ₂ is D2, and the maintenance distance required between the wall surface W of the server room p0 and the server rack (p2) ₂ is d2. The variable x ₂ is expressed by the following (Equation 3).
_{x 2 = (D2-d2)} ( Equation 3)

In (Formula 3), the number of combinations of the position of the wall surface W of the server room p0 and the position of the server rack (p2) ₂ such that x ≧ 0 is J2.

  The second cost function, which is a cost function in the server room p0, uses the formula including the total of the first cost functions of the devices pj installed in the server room p0. Defined by the calculation formula).

  α and λ are weighting factors, and are set to 1.0 in this embodiment. i indicates the number of devices installed in the same type of server room p0. V (p0) is the volume of the server room p0.

The first term of the right side of (Equation 4) is an expression obtained by multiplying the weight coefficient alpha ₁ to the sum of the first cost function P1 amino server p1. Since the second term to the fourth term on the right side of (Formula 4) are the formulas obtained by multiplying the sum of the first cost functions by the weighting coefficient in the same manner as the first term, description thereof is omitted.

  The fifth term on the right side of (Expression 4) is the sum of the volume V (p0) of the server room p0 and the volumes of the server p1, the server rack p2, the indoor unit p3, and the ICT device p4.

Is a formula obtained by multiplying the square of the difference with the weighting factor λ ₁ . The lower the value of the fifth term on the right side of (Expression 4), the more devices installed in the server room p0 are installed in the server room p0.

Section 6 of the right side of (Equation 4) is an expression number combination is multiplied by a weighting factor lambda ₂ to the sum of the distances between the server rack adjacent in the case where the J1. The seventh term on the right-hand side of equation (4) is an expression number combination is multiplied by a weighting factor lambda ₃ to the sum of the distance between the wall surface W of the server rack p2 and server room p0 when serving as J2. As the value of the sixth term on the right side of (Expression 4) and the value of the seventh term on the right side of (Expression 4) are smaller, the distance from the device installed in the server room p0 to another object becomes closer to the maintenance distance. .

If the value of the second cost function in the server room p0 is minimized, all the devices installed in the server room p0 maintain the maintenance distance and are disposed in the server room p0 without waste. As a specific calculation method for minimizing the value of the second cost function, the partial differential value becomes 0 for each variable (x ₁ , x ₂ , P 1, P ₂ , P 3, P 4, etc.) in (Equation 4). There is a method for minimizing (Equation 4).

The position of the device installed in the server room p0 also depends on the thermohydrodynamic conditions. The thermohydrodynamic conditions relate to the temperature T, velocity W, and pressure P of the fluid in the server room p0. A third cost function defined using a thermohydrodynamic equation is shown in the following (Formula 5) (second formula).
U (φ _ji ) = T _p1i (φ _ji ) · W _p1i (φ _ji ) · P _p1i (φ _ji ) (Formula 5)
φ _ji is a variable related to the coordinates and angles of each device installed in the server room p0. T _p1i represents the suction temperature of the server p1i, W _p1i represents the cool air velocity near the suction port of the server p1i, and P _p1i represents the cold air pressure near the suction port of the server p1i. The expression on the right side is defined as an expression for deriving the power consumption of the air conditioner. Therefore, if the value of the third cost function is minimized, the power consumption of the air conditioner is also minimized.

  The value of the third cost function depends on various conditions. For example, when the suction temperature of the server p1 is equal to or lower than the threshold value, the value of the third cost function is lowered and the suction temperature of the server p1 exceeds the threshold value. Therefore, the value of the third cost function is increased.

  After the calculation of the simulation, if the arrangement of the server rack p2 or the like is changed, the boundary condition of the object viewed from the fluid changes. Therefore, for example, when the distance between the server p1 and the indoor unit p3 is large, the value of the third cost function is increased, and when the distance between the server p1 and the indoor unit p3 is small, the third cost function is increased. The value of will be lowered.

A fourth cost function obtained by adding the second cost function and the third cost function is shown in (Expression 6) below.
_{Z (φ ji) = E (} x 1, x 2, P1, P2, P3, P4, J1, J2: α 1, α 2, α 3, α 4, λ 1, λ 2, λ 3) + U ( φ _ji ) (Formula 6)

The position of the device installed in the server room p0 may be determined by calculating the variable x ₁ , the variable x ₂ , and the variable φ _ij that minimize the value of the fourth cost function. This makes it possible to satisfy the physical condition of maintaining the maintenance distance and the thermohydrodynamic condition of suppressing the power consumption of the air conditioner.

  As one of the hierarchical relationships, when it is specified that the server p1 is included in the server rack p2, the first cost function is calculated assuming that the server p1 and the server rack p2 are integrated. To do. Specifically, in (Equation 4), the number P1 of servers p1 may be set to zero.

  Further, regarding the positions of the server p1, the server rack p2, the indoor unit p3, and the ICT device p4, the relative angle a can be set with respect to the wall surface W of the server room p0. When the relative angle a is set, one side of the bottom surface of the device installed in the server room p0 that is closest to the wall surface W of the server room p0, and the boundary line between the floor surface and the wall surface W of the server room p0 Calculate the dot product of. When the relative angle a is a certain angle or more, the value of the third cost function is increased. When the relative angle a is within the predetermined angle range, the value of the third cost function is decreased.

(result)
FIG. 3 shows an example of a plan view showing positions of various devices installed in the server room according to the embodiment of the present invention. FIG. 3A is a plan view showing the position of the installed object in the server room p0 before performing the method for determining the position of the device installed in the server room according to the present embodiment. FIG. 3B is a plan view showing the position of the installed object in the server room p0 after performing the method for determining the position of the device installed in the server room according to the present embodiment. Regarding the shapes of the server p1, the server rack p2, the indoor unit p3 of the air conditioner, and the ICT device p4, a cylinder, a prism, or the like is assumed. In FIG. 3, the shape of the server p1 is a prism, the shape of the server rack p2 is a prism, the shape of the indoor unit p3 of the air conditioner is an elliptical column, and the shape of the ICT device p4 is a cylinder. In FIG. 3, it is assumed that P1 = P2 = P3 = P4 = 1 (pieces).

  In the server room p0 shown in FIG. 3A, a server p1, a server rack p2, an indoor unit p3 of an air conditioner, and an ICT device p4 are respectively installed at arbitrary positions. The server room p0 shown in FIG. 3 (b) includes a server p1, a server rack p2, an indoor unit p3, and an ICT device p4 that are physically connected by the system 10 that determines the position of the device installed in the server room p0. Are installed so as to satisfy general conditions and thermohydrodynamic conditions.

  4 is installed in the server room after satisfying physical conditions and thermohydrodynamic conditions by the system 10 for determining the position of the equipment installed in the server room according to the embodiment of the present invention. An example of the top view showing the position of an apparatus is shown. As for the shape of the server room, a circular shape, a rectangular shape, a star shape and the like are assumed.

  FIG. 4A shows a plan view showing the position of the installation object after the optimization calculation according to the present embodiment in the circular server room 400, and FIG. The top view showing the position of the installation object after the optimization calculation which concerns on this embodiment is shown. FIG. 4C is a plan view showing the position of the installation object after the optimization calculation according to the present embodiment in the triangular server room 420, and FIG. 4D is a cross-shaped server room 430. The top view showing the position of the installation thing after the optimization calculation which concerns on this embodiment in FIG. Further, FIG. 4E is a plan view showing the position of the installation object after the optimization calculation according to the present embodiment in the star-shaped server room 440.

  In the server room shown in FIGS. 4A to 4E, the indoor unit 301, the ICT equipment 302, the server 303, and the server rack 304 determine the position of equipment installed in the server room. The system 10 is installed so as to satisfy physical conditions and thermohydrodynamic conditions, respectively. As shown in FIGS. 4A to 4E, a method for determining the position of a device installed in a server room according to the present embodiment can be applied to a server room having various shapes.

  FIG. 5 shows the relationship between the number of server racks and the energy saving rate of an air conditioner according to an embodiment of the present invention. The horizontal axis of the graph shown in FIG. 5 represents the number of server racks, and the vertical axis represents the energy saving rate of the air conditioner. The energy saving rate of an air conditioner is, for example, the position of the equipment installed in the server room with respect to the power consumed by the air conditioner in the server room in which the server rack is arbitrarily arranged for a certain period (one month, one year, etc.) The ratio of the power consumption of the air conditioner after the position is determined by the method for determining is defined as a value subtracted from 1. In the conventional method for determining the position of the equipment installed in the server room, the energy saving rate of the air conditioner relative to the number of server racks is represented by a solid bar graph, and the equipment installed in the server room according to one embodiment of the present invention The energy saving rate of the air conditioner with respect to the number of server racks in the method for determining the position of is indicated by a hatched bar graph. Assume that the same number of servers are stored in the server rack.

  In the conventional method for determining the position of equipment installed in a server room, when the number of server racks is (F), the energy saving rate is (G), and when the number of server racks is (H), the energy saving rate is (I). Further, in the conventional method for determining the position of equipment installed in a server room, when the number of server racks is (K), the energy saving rate is (L), and when the number of server racks is (M), the energy saving is performed. The rate is also (L).

  On the other hand, in the method for determining the position of a device installed in a server room according to an embodiment of the present invention, when the number of server racks is (F), the energy saving rate is (O), and the number of server racks is ( In the case of H), the energy saving rate is (Q). In the method for determining the position of the device installed in the server room according to the embodiment of the present invention, when the number of server racks is (K), the energy saving rate is (R), and the number of server racks is ( In the case of M), the energy saving rate is (S).

  As shown in FIG. 5, when the number of server racks is the same, the energy saving rate of the air conditioner with respect to the number of server racks in the method for determining the position of the device installed in the server room according to the embodiment of the present invention is conventionally It can be seen that the method of determining the position of the equipment installed in the server room is higher than the energy saving rate of the air conditioner with respect to the number of server racks. In the method for determining the position of a device installed in a server room according to an embodiment of the present invention, the energy saving rate of the air conditioner with respect to the number of server racks increases substantially in proportion to the number of server racks. (A)

(Flowchart of the method for determining the position of equipment installed in the server room)
FIG. 6 shows a flowchart of a method for determining the position of a device installed in a server room according to an embodiment of the present invention. A method for determining the position of a device installed in a server room according to an embodiment of the present invention is implemented in a computer apparatus including at least a central processing unit (CPU) and a memory.

  The structure calculator 12 includes the volume of the server room, the number of server rack rows, the indoor units, and the number of servers, the volume, the coordinates of the server rack in the server room, and the angle of the server rack with respect to the wall surface of the server room, the distance between different racks, A server room structure model is created based on the first parameter including the position of the load in the server, the position of the fan built in the server, and the maintenance distance (S101). The first parameter and the created server room structure model are stored in the storage unit 17.

  The simulation unit 13 is obtained by substituting the server room structure model, the second parameter including the speed, temperature, and pressure of the cold air blown out from the indoor unit and the amount of heat generated from the server load into a predetermined thermohydrodynamic equation. Based on the measured value, the flow of heat in the server room is simulated to generate simulation data (S102). The second parameter and simulation data are stored in the storage unit 17.

  When calculating the server room, the calculation unit 14 changes the first parameter while changing the volume of the server room, the volume of the equipment installed in the server room, and the distance between the equipment installed in the server room. Are calculated respectively. Further, when the cold air flow simulation is performed, the server suction temperature, the speed of the cold air near the server suction port, and the cold air near the server suction port are changed while changing the first parameter and the second parameter. The second calculation formulas for the atmospheric pressure and the position of the device installed in the server room are calculated (S103). The first calculation formula and the second calculation formula are stored in the storage unit 17.

The determination unit 15 determines that the server suction temperature (T _p1i (φ _ji )) is less than the threshold, the value obtained by substituting the first parameter into the calculation formula (formula 4) is the minimum, and the formula (formula 5) A combination of the first parameter and the second parameter is determined so that the value obtained by substituting the second parameter for (S104) is minimized.

  According to this embodiment, it becomes possible to efficiently supply the cold air blown from the indoor unit of the air conditioner to the load in the server. Therefore, the cooling efficiency of the server room is increased, and the power saving of the air conditioner can be achieved. In addition, it is possible to secure a distance for maintenance of equipment installed in the server room.

  INDUSTRIAL APPLICABILITY The present invention can be used in industrial fields related to monitoring and image sensing in a real environment in the electric power field, energy field, communication field, and sensing field.

pj equipment p0,20,300,310,400,410,420,430,440 server room p1, p1i, 303 server _{p2,21f 1, 21f 2, 21f 3} , 21f 4, 21f 5, 21f 6, 21f 7, 304 server racks p3, 22a, 22b, 22c, 22d, 301 indoor unit p4, 302 ICT equipment 10 system 11 input unit 12 structure calculation unit 13 simulation unit 14 calculation unit 15 determination unit 16 display unit 17 storage unit 21a, 21b, 21c , 21d, 21e, 21f Server rack row

Claims (2)

A method for determining a position of a device installed in a server room having an indoor unit in a computer ,
The first parameter including the dimension information of the server room, the dimension information of the equipment installed in the server room, and the position information of the equipment installed in the server room is received at the input unit of the computer. Storing in the storage unit of the computer;
Based on the first parameter , modeling the arrangement of the equipment installed in the server room in the structure calculation unit of the computer and storing it in the storage unit ;
The temperature information of the cold air blown from the indoor unit to cool the server, the suction temperature information of the server, the speed information of the cold air blown from the indoor unit, and the heat quantity information generated from the load of the server Receiving the second parameter including at the input unit and storing the second parameter in the storage unit;
Performing a simulation of the flow of the cold air supplied into the server based on the second parameter in a simulation unit of the computer, and storing simulation data in the storage unit ;
In the calculation unit of the computer, using the cost function indicating the energy saving rate of the server room and the simulation data , calculating a calculation formula substituted while changing the first parameter and the second parameter , Storing in the storage unit ;
The first parameter and the combination of the second parameter values of the equation obtained by substituting the minimum such so that a first parameter and the second parameter before Symbol formulas, the computer Determining the position of the device installed in the server room by determining the position of the device installed in the server room.   The calculation formula is a first calculation formula showing the relationship between the volume of the equipment installed in the server room and the distance between the equipment installed in the server room, the suction temperature of the server, and the server It consists of a second calculation formula showing the relationship between the speed of the cold air near the suction port, the air pressure of the cold air near the suction port of the server, and the position of the equipment installed in the server room,
  In the calculation unit of the computer, calculating the calculation formula and storing it in the storage unit includes:
    While changing the first parameter, calculating the first calculation formula in the calculation unit of the computer and storing it in the storage unit;
    Calculating the second calculation formula in the calculation unit while changing the first parameter and the second parameter using the simulation data, and storing them in the storage unit;
  And determining the position of the device installed in the server room by determining the combination of the first parameter and the second parameter by the determination unit of the computer, and the suction temperature of the server Is less than the threshold, the value obtained by substituting the first parameter into the first calculation formula is minimum, and the value obtained by substituting the second parameter into the second calculation formula is minimum. The method includes: determining a position of a device installed in the server room by determining a combination of the first parameter and the second parameter to be determined by a determination unit of the computer. The method of determining the position of the apparatus installed in the server room of description.

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