JP6482031B2 - Configuration selection system, configuration selection method, and program - Google Patents

Description

  The present invention relates to a configuration selection system, a configuration selection method, and a program for selecting an implementation with a high cost advantage for software functions that are required when a service provider provides a service.

  In recent years, NFV (Network Functions Virtualization) technology has attracted attention as a network function virtualization technology (see, for example, Non-Patent Documents 1 and 2). This NFV technology is expected to reduce CAPEX (Capital Expenditure) / OPEX (Operating Expenditure) by reducing equipment costs, optimizing resources, automating operations, and increasing efficiency. Also, when using NFV, consider which device (server system / router system) the software implementation form, how much specifications are required for the device, or whether virtualization should be introduced There is a need to.

  However, when the software is installed in a plurality of apparatuses, the configuration variations increase by integration, and thus it is difficult to exhaustively extract the configuration variations. That is, as shown in FIG. 7, when there is no virtualization, the extension cycle (period for adding the device) m is long, so there is a lot of waste of CAPEX / OPEX. As shown in FIG. In this case, since the extension cycle m ′ is short, the CAPEX / OPEX is less wasted. In this case, as shown in FIG. 9, there is a demarcation point where the superiority of cost due to the presence or absence of virtualization is reversed according to the required performance. That is, in the case of no virtualization, the device itself is expensive and has high performance, so that the cost is relatively high in an environment that requires low performance. On the other hand, in the case of virtualization, the cost of the device alone is low and the performance is low, and in an environment where high performance is required, the cost increases relatively due to an increase in the number of devices. These correlations are also proposed in Non-Patent Document 3, but specific modeling has not been studied.

In this way, demand fluctuations due to the presence or absence of virtualization and cost correlation are not modeled, and a method for selecting the optimal total cost of facility cost and operation cost from the combination of these implementation forms has been established. It wasn't. For this reason, conventionally, the following methods are generally adopted for selecting the mounting form.
(1) Necessary resources at the time of final station are calculated, and a mounting form is selected based on a cost estimate based on the required resources (conventional method 1).
(2) Only a representative configuration is selected, and cost estimation related to it is led (conventional method 2).

Network Function Virtualization (NFV) Overview, URL 1454913111772_0.pdf,% 20 "Network Functions Virtualisation (NFV); Management and Orchestration", ETSI GS NFV-MAN 001 V1.1.1 (2014-12) " Column "Server virtualization introduction dilemma", Bit Isle, URL 1454913111772_1.html, January 6, 2016 search

  However, in the conventional method 1, since the cost correlation due to the difference in the extension cycle is not taken into consideration, the configuration with virtualization is relatively disadvantageously calculated as compared with the case without virtualization. Further, in the conventional method 2, since only representative configurations are extracted, the configurations are not exhaustively extracted, and there is a possibility that an optimal configuration is leaked.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a configuration selection system, a configuration selection method, and a program capable of easily selecting a mounting configuration with a high cost advantage. It is in.

In order to achieve the above object, the present invention provides a network environment in which software functions are arranged on a service provision base constructed in a network to provide a service. A configuration selection system for selecting a highly advantageous mounting configuration, wherein an input means for inputting performance requirements of the apparatus necessary for providing the service, a storage means for storing predetermined information, and a performance input from the input means Based on the requirements and the information stored in the storage means, it is determined whether a single device can realize a device that satisfies the performance requirements of a terminal device or a transfer device having a terminal function. case calculates the sum of capital cost and operating costs of each implementation configuration with the single apparatus, terminating with a terminal function device or transferred instrumentation If in a single apparatus unit which satisfies the performance requirements of infeasible, to calculate the number of devices having a terminal function to be realized a device to satisfy the performance requirements, having a terminal function Calculate the required number of transfer devices with a relay function to connect multiple devices to each other, and calculate the total of equipment costs and operation costs for each mounting configuration by combining devices with terminal functions and devices with relay functions It is characterized by comprising a calculating means for

As a result, when a device that satisfies the performance requirements of a terminal device or a transfer device having a terminal function can be realized with one device, the total of the equipment cost and the operation cost for each mounting configuration of the one device is calculated. is, when the equipment to meet the performance requirements of the end device or transfer device having a terminal function not feasible in a single device has a terminal function for enabling realizing a device to satisfy the performance requirements The number of devices is calculated, and the required number of transfer devices having a relay function for connecting end function devices to each other is calculated, and for each mounting configuration by a combination of the end function device and the relay function device Since the total of the equipment cost and the operation cost is calculated, the implementation configuration based on the combination of the terminal function device and the relay function device is abstracted and comprehensively It is possible to turn of.

  According to the present invention, it is possible to abstract and comprehensively pattern the implementation configuration of a combination of a device having a terminal function and a device having a relay function. A large increase in the number of devices) can be suppressed, and an arrangement form using an optimal configuration with a high cost advantage can be easily selected.

The block diagram of the arrangement | positioning determination system which shows one Embodiment of this invention The figure which shows the data table of a memory | storage part The figure which shows the data table of a memory | storage part Diagram showing configuration list Flow chart showing the operation of the calculation unit Flow chart showing the operation of the calculation unit The figure which shows the data table of a memory | storage part Diagram showing the relationship between time and number of processes without virtualization Figure showing the relationship between time and the number of processes with time when virtualization is present Diagram showing the relationship between the number of users and cost

  The present invention will be described below with reference to the drawings.

  The present embodiment relates to a configuration selection system for selecting an implementation configuration with a high cost advantage for software functions required when a provider provides a service on a network.

  In the configuration selection system of the present embodiment, based on request information such as application basic information and demand prediction, the implementation configuration that performs the end function is classified into a termination device (server) and a transfer device (router, load balancer (LB)). The pattern of the mounting configuration with the lowest cost is selected and output from the combination of devices according to the presence / absence of virtualization and the required number of devices. That is, in this system, the termination device with virtualization is the device [A], the termination device without virtualization and the low-performance device [A], and the termination device without virtualization and the high-performance termination device. Device [C], a transfer device with virtualization device [D], a non-virtualization transfer device with low performance [o], a non-virtualization transfer device with high performance The equipment cost and the operating cost (CAPEX / OPEX) are calculated for the mounting configuration of a plurality of patterns composed of combinations of these devices [A] to [F]. In this case, as the termination device, for example, a device having abundant CPU, memory and disk is used, and as the transfer device, a device having a high performance NW / IO is used.

  As shown in FIG. 1, the configuration selection system according to the present embodiment includes an input unit 10 that inputs performance requirements of a device necessary for providing a service, a storage unit 20 that stores predetermined information in advance, and an input unit. 10 is provided with a calculation unit 30 as calculation means for performing calculation based on the performance requirements input from 10 and information stored in the storage unit 20, and an output unit 40 for outputting the calculation result of the calculation unit 30.

The input unit 10 is input with CPU: R ₁ , memory: R ₂ , disk: R ₃ , network: R ₄ as performance requirements, demand forecast f (m), peak out required period m [month] Is entered. Here, the peak-out required period is a parameter indicating, for example, how many months later the user becomes the maximum.

  As information stored in advance in the storage unit 20, as shown in the data table of FIG. 2, a termination device with virtualization, a termination device without virtualization (low performance), and a termination device without virtualization (high performance) ), The transfer device with virtualization, the end device without virtualization (low performance), and the transfer device without virtualization (high performance) for each device performance (CPU, memory, disk, network ( NW)), the standard value of facility cost and operation cost (CAPEX / OPEX), and the expansion cycle (period required for expansion) are stored. The numerical values shown in FIG. 3 are examples of reference values, and these reference values are determined by the device used.

  Based on the performance requirement input from the input unit 10 and the information stored in the storage unit 20, the arithmetic unit 30 satisfies the performance requirement as a device having a terminal function for each of the devices [A] to [F]. It is determined whether or not the device has a mounting configuration that can be realized by one device, and in the case of a mounting configuration that can be realized by one device, the equipment cost for each mounting configuration by each device [A] to [F] The total operating cost is calculated, and the implementation configuration that minimizes the cost is selected. In addition, when a device that satisfies the performance requirements cannot be realized by a single device, a necessary number of devices that can be realized is calculated, and a device having a relay function for connecting a plurality of devices having end functions to each other is calculated. Calculate the required number, calculate the total of equipment cost and operation cost for each mounting configuration by combining the device with terminal function and the device with relay function, and select the mounting configuration with the lowest cost Yes.

  Further, the arithmetic unit 30 calculates a combination and cost of a device having a terminal function and a device having a relay function, and creates a configuration list of each mounting configuration as shown in FIG.

  The output device 40 is configured to output the optimal mounting configuration pattern selected based on the calculation result of the calculation unit 30 by, for example, a display that can be presented to the service provider.

  Next, calculation processing of the calculation unit 30 will be described with reference to the flowcharts of FIGS. 5 and 6.

  First, based on the performance requirements input from the input unit 10, the required resources at the end of the event are calculated (step S1). Next, for the devices [A] to [F] having terminal functions, the total of the equipment cost and the operating cost is calculated by the following processing. That is, based on the necessary resources calculated in step S1, it is determined whether or not a device that satisfies the performance requirements can be realized by one device (step S2). After calculating the total of the equipment cost and the operating cost of the mounting configuration by (Step S3) and adding the mounting configuration to the configuration list (Step S4), if the processing is not completed for all the devices (Step S5), Return to step S2. Further, in step S2, if a device that satisfies the performance requirements cannot be realized by a single device, the process returns to step S2 without being added to the configuration list. If the processing in steps S2 to S4 is completed for all the devices (step S5), if there is a mounting configuration in the configuration list that can realize a device that satisfies the performance requirements with one device (step S6). ), From the configuration list, select the mounting configuration with the lowest total of the equipment cost and the operating cost (step S7), and output it by the output device 40 (step S8). In this case, the configuration list is only the implementation configuration without the relay function.

  In step S6, when there is no mounting configuration in the configuration list that can realize a device that satisfies the performance requirements with one device, a combination of a device having a terminal function and a device having a relay function is processed as follows. To add to the configuration list. That is, the expansion cycle m [month] is set as one cycle of demand prediction, the initial value is set to “0” (step S9), and “1” is added to m (step S10). Next, the required requirement of CPU, memory, disk, and network is calculated by multiplying the performance requirement by the demand prediction f (m) (step S11), and the required number of devices having a terminal function capable of realizing the required resource is calculated. (Step S12). In this case, as shown in FIG. 3, the number of CPUs, memories, disks, and networks that satisfy all the necessary resources of the CPU, memory, disk, and network is calculated based on the required resources per user and the demand prediction. Subsequently, the necessary number of devices having a relay function for connecting the devices having the terminal functions to each other is calculated (step S13). In this case, only the number of network resources that satisfy the necessary resources is calculated. Next, the total of the installation cost and the operation cost of the mounting configuration by the apparatus is calculated (step S14). In this case, the equipment cost is calculated for the number of devices, and the operating cost is calculated by multiplying the number of devices by the extension cycle. Next, if m has not reached the peak required period (step S15), the process returns to step S10 and the processes of steps S10 to S14 are repeated. If m has reached the peak required period in step S15, the terminal function is reached. Is added to the configuration list (step S16), and if all the devices have not been processed (step S17), the process returns to step S9 to Steps S9 to S17 are performed for the configuration. Then, if the processing of steps S9 to S16 is completed for all the devices [A] to [F] having the end functions and the devices [D] to [F] having the relay functions (Step S17), The mounting configuration with the lowest total of the equipment cost and the operating cost is selected (step S7) and output by the output device 40 (step S8). In this case, the configuration list is only the implementation configuration with the relay function. Also, a combination of a transfer device having an end function and a transfer device with virtualization having a relay function, a non-virtualization transfer device having an end function and a non-virtualization transfer device having a relay function (low performance) For the combination of a non-virtualized non-virtualized transfer device (high performance) with a combination of end functions and a non-virtualized non-virtualized transfer device (high performance), the performance of the end functions exceeds the performance of the relay function It is not suitable as a combination of mounting configurations.

  As the output method by the output device 40, the mounting configuration with the lowest cost may be displayed, or the ranking may be displayed according to the size of the cost. At that time, if the cost value is also displayed, a more detailed comparison can be made.

  Further, as a result of the cost estimation, as shown in FIG. 10, the cost is lower when the number of users is smaller as shown in FIG. 10. However, when the number of users is increased, the configuration without virtualization (low performance) is cheaper. It becomes.

  As described above, according to the present embodiment, each of the devices [A] to [F] has a terminal function based on the performance requirements input from the input unit 10 and the information stored in the storage unit 20. It is determined whether or not a device satisfying the performance requirements is a mounting configuration that can be realized by one device, and in the case of a mounting configuration that can be realized by one device, mounting by each device [A] to [F] Calculate the total of equipment cost and operation cost for each configuration, and if it is impossible to achieve a device that satisfies the performance requirements with a single device, calculate the required number of devices and multiple devices with end functions The required number of devices with a relay function to connect each other is calculated, and the total of the equipment cost and the operation cost is calculated for each mounting configuration by combining the device with the terminal function and the device with the relay function. So Abstracts the mounting structure in combination with apparatus having the apparatus and the relay function having an end function, it can be comprehensively patterned. As a result, it is possible to suppress a significant increase in configuration variations (end function device × relay function device) and to easily select an arrangement form using an optimal configuration with a high cost advantage. it can.

  Also, with regard to the terminating device with virtualization having the end function, the terminating device without virtualization having the end function, the transfer device with virtualization having the relay function, and the transfer device without virtualization having the relay function, respectively. Since the total of the equipment cost and the operation cost is calculated, it is possible to accurately compare the costs depending on the difference in virtualization.

  In this case, for the end device and transfer device without virtualization, the total of the equipment cost and operation cost for the high-performance device and the low-performance device is calculated. By subdividing, high-performance appliance products and low-performance general-purpose IA servers can be incorporated into the model, and the actual configuration lineup can be comprehensively modeled.

  In addition, when calculating the total of equipment costs and operating costs, cost estimates are accumulated in units of expansion cycles, so rigorous cost estimations can be made based on the expansion cycles, and cost comparisons based on differences in virtualization. It can be done more accurately.

  DESCRIPTION OF SYMBOLS 10 ... Input part, 20 ... Memory | storage part, 30 ... Operation part, 40 ... Output part.

Claims (6)

A configuration selection system that selects a highly cost-effective implementation configuration from a plurality of different implementation configurations in a service provision infrastructure in a network environment in which software functions are provided on a service provision infrastructure constructed on a network. Because
Input means for inputting performance requirements of the apparatus necessary for providing the service;
Storage means for storing predetermined information;
Based on the performance requirements input from the input means and the information stored in the storage means, it is determined whether or not a single device can realize a termination device having a terminal function or a device that satisfies the performance requirements of the transfer device, If it is feasible with a single device , calculate the total of the equipment cost and operating cost for each mounting configuration of the single device , and select a device that satisfies the performance requirements of a terminal device or a transfer device having a terminal function. When it is impossible to realize with a single device, the number of devices having a terminal function for realizing a device satisfying the performance requirements is calculated, and a plurality of devices having a terminal function are connected to each other. Calculate the required number of transfer devices with relay function, and calculate the total of equipment cost and operation cost for each mounting configuration by combining the device with terminal function and the device with relay function Configuration selection system comprising the stages. The configuration selection system according to claim 1, further comprising an output unit that outputs a component having the smallest total of the equipment cost and the operation cost calculated by the calculation unit among the mounted configurations. A terminal device having a terminal function for realizing a device that satisfies the performance requirements is a terminal device with virtualization having a terminal function or a terminal device without virtualization having a terminal function,
The transfer device having a terminal function for realizing a device that satisfies the performance requirements is a transfer device with virtualization having a terminal function or a transfer device without virtualization having a terminal function,
3. The configuration selection system according to claim 1 , wherein the transfer device having a relay function is a transfer device with virtualization having a relay function, or a transfer device without virtualization having a relay function . The terminator without virtualization is a high-performance terminator without virtualization or a low-performance terminator without virtualization,
4. The configuration selection system according to claim 3 , wherein the non-virtualized transfer device is a high-performance transfer device without virtualization or a low-performance transfer device without virtualization . Configuration selection method for selecting a highly cost-effective implementation configuration from a plurality of different implementation configurations in a service provision infrastructure in a network environment in which software functions are provided on a service provision infrastructure constructed on a network. I met with,
Based on the performance requirements input from the input means for inputting the performance requirements of the apparatus necessary for providing the service and the information stored in the storage means storing the predetermined information, the calculating means is a terminating device or transfer having a terminal function. It is determined whether or not a device that satisfies the performance requirements of the device can be realized by one device, and if it can be realized by one device, the equipment cost and the operation cost for each mounting configuration by the one device When a device that satisfies the performance requirements of a terminal device or transfer device having a terminal function cannot be realized by a single device, the terminal function for realizing the device that satisfies the performance requirements is calculated. The number of transfer devices with a relay function for connecting a plurality of devices having end functions to each other is calculated, and the devices having the end functions and the relay functions are calculated. Configuration selection method characterized by calculating the sum of capital cost and operating costs for each mounting structure in combination with devices that.
A program for causing a computer to function as the configuration selection system according to any one of claims 1 to 4.

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