WO2013027649A1 - 仮想データセンタシステム - Google Patents
仮想データセンタシステム Download PDFInfo
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- WO2013027649A1 WO2013027649A1 PCT/JP2012/070837 JP2012070837W WO2013027649A1 WO 2013027649 A1 WO2013027649 A1 WO 2013027649A1 JP 2012070837 W JP2012070837 W JP 2012070837W WO 2013027649 A1 WO2013027649 A1 WO 2013027649A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
- G06F15/177—Initialisation or configuration control
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
Definitions
- the present invention relates to a virtual data center system.
- BCP issues include the use of dedicated equipment, design, construction, such as the use of clusters and load balancers to increase availability, storage of data at remote locations for disaster countermeasures, and the construction of backup systems at remote locations using dedicated lines. That cost is necessary and difficult to deal with.
- Patent Document 1 and Patent Document 2 there is a method to solve the problem by using a data center even in a small and medium enterprise.
- the BCP problem and compliance problem can be solved to some extent.
- a certain amount of knowledge is required.
- specialized knowledge is required to understand how much cost can be reduced by using a data center with a system configuration, and there are many cases where small and medium-sized enterprises cannot handle it. Therefore, once a data center system is introduced, it continues to be used as it is, and as a result, there is a problem that the cost for resources does not become low.
- a first invention is a virtual data center system having a plurality of data center systems, a provisioning system capable of transmitting / receiving information to / from the data center system, and an operation statistics database for storing information on resources of the data center system
- the provisioning system uses information on resources stored in the operation statistics database, and uses a data center system of an arbitrary generation according to a use situation of the data center system from a user system used by a user.
- the virtual data center system further includes a user information database that stores information on a system configuration of the user system used by the user, and the provisioning system refers to the user information database.
- a data center system having the optimum round trip time is selected from the data center systems in the virtual data center system. It can be configured as a virtual data center system that is selected as a primary site and a data center system in which the round trip time is the second smallest value is selected as a secondary site.
- the primary site and secondary site that are likely to be used every day are preferably closer to the user system from the viewpoint of access speed. Therefore, by configuring as in the present invention, the primary site and the secondary site can be automatically selected.
- the provisioning system further uses, as a backup site, a data center system having a maximum round trip time among the data center systems in the virtual data center system, using the extracted system configuration information. It can be configured like a virtual data center system to be selected.
- the backup site exists at a location away from the user system. Therefore, by configuring as in the present invention, a backup site can be automatically selected.
- the provisioning system is further configured as a virtual data center system that requests allocation of resources to the data center system that is the primary site and the secondary site that are selected and makes them available. be able to.
- the primary site and secondary site can be used according to the present invention.
- the provisioning system further makes the secondary site available by requesting resource allocation to the data center system as the primary site among the selected primary site and secondary site.
- the site data center system can be configured like a virtual data center system that requests resource allocation when a predetermined condition is satisfied without requesting resource allocation.
- the secondary site When using the secondary site mainly for the purpose of failover, if resources are always allocated, resources in the data center system selected as the secondary site are wasted. Therefore, the secondary site may be used as necessary, and can be realized by the present invention.
- a company as a user can reduce the cost of IT resources such as CPU / DISK / memory without reconstructing and reinvesting the computer system.
- IT resources such as CPU / DISK / memory
- the necessary security enhancement, availability improvement, and disaster countermeasures can be realized without rebuilding the system.
- a log of an integrated monitoring system that monitors a virtual data center in which small data centers distributed in various locations are connected to a network to form a resource pool and a user system that becomes a user office.
- the virtual data center system 1 of the present invention includes a provisioning system 2, a data center system 3, an integrated monitoring system 4, and an authentication system 5, and is connected to a user system 6 used by each user (such as a company). Information can be sent and received.
- Each computer system in the virtual data center system 1 includes at least one computer (including a server).
- This computer includes an arithmetic unit such as a CPU for executing arithmetic processing of a program, a storage unit such as a RAM and a hard disk for storing information, a display unit such as a display, a keyboard and a pointing device (such as a mouse and a numeric keypad). ), And a communication device that transmits and receives processing results of the arithmetic device and information stored in the storage device via a network such as the Internet or a LAN.
- Each function (each unit) realized on the computer is executed when a unit (program, module, etc.) for executing the process is read into the arithmetic unit.
- FIG. 2 schematically shows an example of a hardware configuration of a computer used in each system.
- Each system may have its functions distributed in a plurality of computer terminals or servers.
- the means in the present invention are only logically distinguished from each other in function, and may be physically or virtually the same area.
- the provisioning system 2 is a system that transmits and receives information to and from the user system 6, and automatically determines the data center system 3 (hereinafter referred to as “primary site 3 ⁇ / b> A”) that is directly accessed by the user. 6 automatically assigns necessary network and system resources.
- a data center system 3 (hereinafter referred to as “secondary site 3B”) that becomes a failover destination when there is an abnormality in the primary site 3A, and a data center system 3 (hereinafter referred to as “backup site 3C”) that backs up data. Automatically).
- the provisioning system 2 includes a user information database 21 and an operation statistics database 22.
- the user information database 21 stores contract information with a user who uses the user system 6 and system configuration management information of the user system 6.
- the operation statistics database 22 stores various types of information when the user uses the virtual data center system 1. For example, as user resource utilization result data of a user, CPU information (peak usage rate and operation clock for each core), memory information (peak usage amount), storage information (usage amount and peak IOPS (I / O per second of storage) In addition, access data is recorded, and contract users, authentication accounts, access sources, use start times, use end times, communication data amounts, and the like are stored.
- the data center system 3 is a system having a storage for storing various types of information used by the user system 6, and is installed in a plurality of locations in Japan or the world. Information can be transmitted and received between the data center systems 3.
- the data center system 3 that is the primary site 3A, the secondary site 3B, and the backup site 3C is set for each user, even if it is the primary site 3A for one user, it can be the backup site 3C for another user.
- Data replication is executed between the primary site 3A and the secondary site 3B, and data backup is executed between the primary site 3A or the secondary site 3B and the backup site 3C. Therefore, when there is an abnormality in the primary site 3A, switching from the primary site 3A to the secondary site 3B is performed by a control instruction from the provisioning system 2. Further, mirroring may be performed between the primary site 3A and the secondary site 3B.
- the integrated monitoring system 4 analyzes and determines the site arrangement that optimizes the resource cost of the user system 6 based on the user resource usage record data, access data, etc. recorded in the operation statistics database 22 in the provisioning system 2. The result of this determination is generated on an electronic medium or a paper medium as a proposal for an optimal layout report.
- the authentication system 5 executes an authentication process in the virtual data center system 1. If the user system 6 includes an ID management system (not shown) for managing IDs, the authentication process is made seamless by synchronizing with the ID management system. As the authentication system 5, in addition to control management of access from the user system 6 to the virtual data center system 1, access authority to resources for each individual user in the user system 6 may be controlled. In the following description, even when there is no clear text, when the user accesses the virtual data center system 1, authentication processing is executed by the authentication system 5.
- the user system 6 is a computer system used by a user, and includes various computers and servers.
- a printer or an MFP (Multifunction Peripheral) may be included as long as it can be connected to a network.
- MFP Multifunction Peripheral
- the user information database 21 stores user contract information for each piece of identification information in advance.
- the user system 6 makes initial settings for optimal operation of the virtual data center system 1.
- the user makes a request for initial setting by performing a predetermined operation on the user system 6.
- the provisioning system 2 refers to the user's contract information by referring to the user information database 21 (in this case, the contract information may be referred to based on the user's identification information).
- the configuration of the user system 6 software configuration, hardware configuration, network configuration, etc.
- information on the base where the user system 6 exists is extracted (S100).
- the provisioning system 2 selects the data center system 3 to be the primary site 3A from among the plurality of data center systems 3 based on the information extracted in S100 (S110). Specifically, the data center system 3 with the optimum round trip time is calculated from the base information in the user system 6 and the line type, and the data center system 3 is selected as the primary site 3A.
- the integrated monitoring system 4 periodically requests the agent system of the user edge router in the data center system 3 to acquire round trip times for all edge routers of each data center system 3, and uses the obtained results. Record in the statistics database 22. Further, the integrated monitoring system 4 periodically requests the agent system of the user edge router to obtain the round trip time to the user router installed on the user system 6 side, and the obtained result is used as the operation statistics database 22. Keep a record.
- the provisioning system 2 acquires round trip times between the user edge routers and all edge routers of each data center system 3 from the operation statistics database 22 in which the round trip times are recorded as described above. Of the round trip times to the edge routers of the acquired data center systems 3, the data center system 3 having the minimum value is selected as the user's shortest data center and primary site 3A.
- the provisioning system 2 next selects the data center system 3 to be the secondary site 3B (S120). Specifically, the data center system 3 having the second smallest value among the round trip times to the edge router of each data center system 3 acquired in S110 is selected as the data center system 3 of the user secondary site 3B. To do. In this way, by setting the data center system 3 having the second smallest round trip time as the secondary site 3B, it is possible to select the secondary site 3B that provides the fastest failover field from the primary site 3A.
- the provisioning system 2 next selects the backup site 3C (S130). Specifically, the data center system 3 having the maximum value among the round trip times to the edge router of each data center system 3 acquired in S110 is selected as the data center system 3 of the user backup site 3C. In this way, by setting the data center system 3 having the maximum round trip time as the backup site 3C, the data center system 3 that is sufficiently far (distance away) from the primary site 3A and the secondary site 3B is backed up. Can be set as site 3C. As a result, the data center system 3 remote from the data center system 3 in which the user system 6 operates can be used as the backup site 3C, and can cope with wide-area disasters.
- the provisioning system 2 determines the necessary resource configuration based on the configuration information of the user system 6 of the user in the contract information extracted in S100. Is determined (S140).
- the information on the primary site 3A, secondary site 3B, and backup site 3C selected in S110 to S130 may be stored in the user information database 21 in association with each user.
- failover is possible between the two data center systems 3 of the primary site 3A and the secondary site 3B, but three or more data center systems 3 are set so that cascade failover is possible. May be.
- each data center system 3 is given a priority order, and the priority order is given in the order of a small round trip time to the edge router of each data center system 3 as described above. And good.
- the provisioning system 2 requests the data center system 3 selected as the primary site 3A to allocate resources, and in the data center system 3 that becomes the primary site 3A that has received it, The resource is secured as the resource of the user (S150).
- the provisioning system 2 sets the user system 6 by sending information of the primary site 3A to the user system 6 (S160). That is, when the user system 6 accesses the provisioning system 2 in the virtual data center system 1, information is set so as to be secured in S150 or to be accessible to the source.
- the secondary site 3B and the backup site 3C are requested to allocate resources, and the data center system 3 that becomes the secondary site 3B and the backup site 3C that has received the request secures the resources as resources of the user ( S160, S170, S180, S190).
- the resource configuration is determined and stored in the secondary site 3B and the backup site 3C, and the data center system 3 serving as the secondary site 3B and the backup site 3C does not allocate resources for implementation, when necessary (for example, when a failover occurs) It can also be configured to allocate resources during backup.
- the provisioning system 2 registers a monitoring task for monitoring the primary site 3A, secondary site 3B, and backup site 3C assigned to the user with respect to the integrated monitoring system 4 (S200). .
- provisioning system 2 assigns the authentication system 5 so as to function as the user authentication system 5 (S210).
- the user uses the virtual data center system 1 from the user system 6.
- the access destination from the user system 6 accesses the data center system 3 serving as the primary site 3A.
- Information on the communication status between the user system 6 and the data center system 3 as the primary site 3A that is, an authentication account, an IP address as an access source, a use start time, a use end time, and a communication data amount are recorded in the operation statistics database 22 as access data.
- the provisioning system 2 receives the result from the monitoring task and stores the user information database 21. If the data center system 3 in which the user detects an abnormality is used as the primary site 3A, the system is restored to the secondary site 3B. This is schematically shown in FIG.
- the primary site 3A is normally used and the secondary site 3B is used in the event of an abnormality, but data is mirrored between the primary site 3A and the secondary site 3B using a load balancer. , May be available at the same time.
- the provisioning system 2 may have the function as a load balancer, or may be provided as another computer. This is schematically shown in FIG.
- a local server provided in the user system 6 is normally used.
- the data center system 3 in the virtual data center system 1 is used. You may comprise so that it may be used.
- the local server functions as the primary site 3A
- the data center system 3 in the virtual data center system 1 functions as the secondary site 3B and the backup site 3C. Therefore, data replication is periodically performed between the local server and the data center system 3 (which may be handled as the primary site 3A in the data center system 3) as the secondary site 3B. This is schematically shown in FIG.
- the user resource usage record data recorded by the provisioning system 2 in the operation statistics database 22 is recorded in the operation statistics database 22.
- FIG. 7 schematically shows an analysis process for system optimal arrangement in the provisioning system 2.
- the effective calculation amount is calculated as the effective calculation amount independent of the environment by the overhead of the virtual environment and the CPU execution processing architecture.
- the effective memory rate and the execution capacity rate are obtained by calculating the amount that can be used by the user excluding overhead due to the OS, virtualization, and the like.
- a user uses a generation 1 CPU, memory, and storage in the data center system 3.
- the generation indicates the distinction of the hardware configuration in the data center system 3, and the younger generation generally has older specifications, but is not limited thereto.
- FIG. 7B shows the actual resource usage record data of the user stored in the operation statistics database 22, and the specification values of the data center system 3 of the generation N (having higher specifications than the generation 1) are shown in FIG. ).
- the provisioning system 2 uses the generation 1 data center system 3 based on the data shown in FIGS. 7A to 7C when the user using the generation N data center system 3 respectively.
- the resource cost is calculated as shown in FIG.
- This value is a resource cost to be reduced when the user moves to the generation N data center system 3. That is, the user's resource cost is reduced by the amount of this value.
- the provisioning system 2 can execute analysis processing for system optimal arrangement for minimizing the cost for resources. That is, if the above value is positive, it can be determined that it is preferable to move to the data center system 3 of the generation N.
- this analysis result is sent from the provisioning system 2 to the user system 6, and after confirming the analysis result, the user instructs to change (relocate) from the generation 1 to the generation N data center system 3. . That is, a relocation request is sent from the user system 6 to the virtual data center system 1.
- the data center system 3 having the minimum round trip time among the generation N data center systems 3 is set as a new primary site 3A.
- the data center system 3 having the second smallest value is set as a new secondary site 3B, and the data center system 3 having the maximum value is set as a new backup site 3C.
- the data migration from the old primary site 3A to the new primary site 3A, from the old secondary site 3B to the new secondary site 3B, and from the old backup site 3C to the new backup site 3C is executed at an arbitrary timing.
- a company that is a user can reduce the cost of IT resources such as CPU / DISK / memory without restructuring and reinvesting the computer system.
- IT resources such as CPU / DISK / memory
- the necessary security enhancement, availability improvement, and disaster countermeasures can be realized without rebuilding the system.
- Virtual data center system 2 Provisioning system 3: Data center system 4: Integrated monitoring system 5: Authentication system 6: User system 21: User information database 22: Operation statistics database
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Abstract
Description
((コア数×世代1の実効計算量C1)÷世代Nの実効計算量CN)×コアあたりの単価XN
で算出する。
また世代Nに移行した場合のメモリ費用としては,
((ピーク使用量×世代1の実効メモリ率M1)÷世代Nの実効メモリ率MN)×1ギガあたりの単価YN
で算出する。
さらに世代Nに移行した場合のストレージ費用としては,
ピークIOPSを超えるIOPSが一番小さなストレージを適用し,使用容量×実行容量率×1ギガあたりの単価
で算出する。
このようにして算出した世代Nに移行した場合のCPU費用,メモリ費用,ストレージ費用を用いて,現在(世代1のデータセンタシステム3)のリソース費用から減算する。
すなわち,
現在のリソース費用-(世代NのCPU費用+世代Nのメモリ費用+世代Nのストレージ費用)
を算出する。
2:プロビジョニングシステム
3:データセンタシステム
4:統合監視システム
5:認証システム
6:ユーザシステム
21:ユーザ情報データベース
22:運用統計データベース
Claims (5)
- 複数のデータセンタシステムと,
前記データセンタシステムと情報の送受信が可能なプロビジョニングシステムと,
前記データセンタシステムのリソースに関する情報を記憶する運用統計データベースと,を有する仮想データセンタシステムであって,
前記プロビジョニングシステムは,
前記運用統計データベースに記憶するリソースに関する情報を用いて,ユーザが利用するユーザシステムからの前記データセンタシステムの利用状況に応じた,任意の世代のデータセンタシステムのリソースに基づくリソース費用と,前記ユーザが現在利用している世代のデータセンタシステムのリソースに基づくリソース費用とを比較することで,前記任意の世代のデータセンタシステムに移行した場合に削減されるリソース費用を算出し,
前記ユーザシステムからの制御指示により,前記ユーザが現在利用しているデータセンタシステムを,前記任意の世代のデータセンタシステムに再配置させる,
ことを特徴とする仮想データセンタシステム。 - 前記仮想データセンタシステムは,さらに,
前記ユーザが利用するユーザシステムのシステム構成の情報を記憶するユーザ情報データベース,を有しており,
前記プロビジョニングシステムは,
前記ユーザ情報データベースを参照することで,前記ユーザシステムのシステム構成の情報を抽出し,
前記抽出したシステム構成の情報を用いて,前記仮想データセンタシステムにおけるデータセンタシステムのうち,ラウンドトリップタイムが最適となるデータセンタシステムをプライマリサイトとして選定し,
前記ラウンドトリップタイムが二番目に小さい値となるデータセンタシステムをセカンダリサイトとして選定する,
ことを特徴とする請求項1に記載の仮想データセンタシステム。 - 前記プロビジョニングシステムは,さらに,
前記抽出したシステム構成の情報を用いて,前記仮想データセンタシステムにおけるデータセンタシステムのうち,ラウンドトリップタイムが最大値となるデータセンタシステムをバックアップサイトとして選定する,
ことを特徴とする請求項2に記載の仮想データセンタシステム。 - 前記プロビジョニングシステムは,さらに,
前記選定したプライマリサイトおよびセカンダリサイトとしたデータセンタシステムに対してリソースの割り当てを要求し,利用可能状態とさせる,
ことを特徴とする請求項2または請求項3に記載の仮想データセンタシステム。 - 前記プロビジョニングシステムは,さらに,
前記選定したプライマリサイトおよびセカンダリサイトのうち,前記プライマリサイトとしたデータセンタシステムに対してリソースの割当を要求することで利用可能状態とさせ,
前記セカンダリサイトとしたデータセンタシステムに対してはリソースの割当を要求することなく,所定の条件を充足したときにリソースの割当を要求させる,
ことを特徴とする請求項2または請求項3に記載の仮想データセンタシステム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/820,086 US20130179550A1 (en) | 2011-08-19 | 2012-08-16 | Virtual data center system |
KR1020137001322A KR20130052599A (ko) | 2011-08-19 | 2012-08-16 | 가상 데이터 센터 시스템 |
EP20120818771 EP2650793A4 (en) | 2011-08-19 | 2012-08-16 | SYSTEM FOR A VIRTUAL DATA CENTER |
CN2012800042338A CN103270501A (zh) | 2011-08-19 | 2012-08-16 | 虚拟数据中心系统 |
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JP2011-179342 | 2011-08-19 | ||
JP2011179342A JP5054220B1 (ja) | 2011-08-19 | 2011-08-19 | 仮想データセンタシステム |
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US (1) | US20130179550A1 (ja) |
EP (1) | EP2650793A4 (ja) |
JP (1) | JP5054220B1 (ja) |
KR (1) | KR20130052599A (ja) |
CN (1) | CN103270501A (ja) |
WO (1) | WO2013027649A1 (ja) |
Cited By (1)
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US10346426B2 (en) * | 2015-08-10 | 2019-07-09 | Fujitsu Limited | System-replication control apparatus and system-replication control method |
Families Citing this family (6)
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US9734468B2 (en) | 2012-02-21 | 2017-08-15 | Nice Ltd. | System and method for resolving customer communications |
JP5892031B2 (ja) * | 2012-10-22 | 2016-03-23 | 富士通株式会社 | リソース管理システム、リソース管理方法、およびリソース管理プログラム |
WO2014112062A1 (ja) * | 2013-01-17 | 2014-07-24 | 株式会社 日立製作所 | ストレージ装置及びデータ移行方法 |
WO2018047349A1 (ja) * | 2016-09-12 | 2018-03-15 | 株式会社日立製作所 | 計算機システム及びリソースの管理方法 |
CN107302447B (zh) * | 2017-05-18 | 2021-02-12 | 上海交通大学 | 一种基于复杂系统的多层数据分析方法 |
CN115695055B (zh) * | 2023-01-05 | 2023-03-14 | 中国电子科技集团公司第三十研究所 | 一种基于内存数据库的高可靠高并发安全认证系统和方法 |
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EP2650793A4 (en) | 2014-07-09 |
US20130179550A1 (en) | 2013-07-11 |
JP5054220B1 (ja) | 2012-10-24 |
EP2650793A1 (en) | 2013-10-16 |
CN103270501A (zh) | 2013-08-28 |
KR20130052599A (ko) | 2013-05-22 |
JP2013041515A (ja) | 2013-02-28 |
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