JP2019174991A - Backup device and backup method and program and storage medium - Google Patents

Abstract

To provide a backup system capable of transferring from a primary data center to a secondary data center simply within a short time with a low cost.SOLUTION: A primary storage device in a primary data center selects data to be transferred to a secondary storage device in a secondary data center from data in a storage part and transmits selection data and flight instruction information going to the secondary data center at a distance communicable with an autonomous flight device 3. The autonomous flight device receives the selection data and the flight instruction information from the primary storage device. The storage part stores the selection data. A steering control part controls flight steering according to the flight instruction information and transmits the selection data to the secondary storage device at distance communicable with the secondary storage device. A secondary storage device in the secondary data center receives the selection data from the autonomous flight device. The storage part stores the selection data.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a backup device, a backup method, a program, and a recording medium.

  As IT is progressing in every field, data backup is essential in preparation for the main data system becoming unusable. In particular, as a disaster recovery system that assumes disasters such as earthquakes and floods, a secondary data center (also called a remote data center) is used for backup of a primary data center (also called a master data center). ) Is installed in a remote area that is not easily affected by the disaster. In the storage device of the secondary data center, duplicate data of data stored in the storage device of the primary data center is similarly stored. According to this system, for example, when the primary data center is damaged, the secondary data center can immediately start the business application, so that the secondary data center can quickly resume the business instead of the primary data center. Become. At this time, in order for the secondary data center to continue to operate on behalf of the primary data center, the data stored in the storage of the primary data center and the storage of the secondary data center at the start of the operation are stored. It is desired that the content of the copied data is as small as possible.

  Here, as a method of replicating the data of the primary data center to the secondary data center, for example, the storage device of the primary data center and the storage device of the secondary data center are connected by a public communication line, There is a method of transferring data of the primary data center to the secondary data center via the public communication line and writing it to the storage device of the secondary data center. However, in the case of a public communication line, data transfer may take time depending on the quality of the line. In particular, in the initial construction of the secondary data center and the initial synchronization after recovery from the failure, it is necessary to transfer all data in the storage device of the primary data center. take time.

  Therefore, for example, there is a method for shortening the transfer time by using a dedicated high-speed line instead of a public line. However, the method using a dedicated high-speed line has a problem that the line cost is very expensive even if the time can be shortened.

  In addition, for example, a method using a storage medium has been reported. In this method, first, data of a storage device in a primary data center is written to a storage medium such as a tape by an operator, the storage medium is transported to a remote secondary data center, and the storage medium is stored in the storage medium. Another worker who has received the data reads the written data from the storage medium and writes it in the storage device of the secondary data center, so that backup is performed (Patent Document 1). However, the transportation of the storage medium requires manual work in various steps, and the transportation of the storage medium requires the use of transportation means such as a car, a train, an airplane, etc. In addition, there is a possibility of traffic congestion, and there is a problem that the required time is increased accordingly.

JP 2004-03122 A

  Accordingly, an object of the present invention is to provide a backup system and a backup method capable of transferring a large amount of data from a primary data center to a secondary data center easily and inexpensively in a short time. To do.

In order to achieve the above object, the backup device of the present invention comprises:
Including a primary data center, a secondary data center, and an autonomous flight device;
The primary data center includes a primary storage device, and the secondary data center includes a secondary storage device;
The primary storage device includes a storage unit, a selection unit, and a wireless communication unit,
The secondary storage device includes a storage unit and a wireless communication unit,
The autonomous flight device includes a steering control unit, a storage unit, and a wireless communication unit;
The primary storage device
The storage unit stores data,
The selection unit arbitrarily selects data to be transferred to the secondary storage device from the data in the storage unit,
The wireless communication unit has the selected selection data and the flight instruction information for flying toward the secondary data center at a distance where the wireless communication unit can communicate with the wireless communication unit of the autonomous flight device. Send;
The autonomous flying device includes:
The wireless communication unit receives the selection data and the flight instruction information from the primary storage device at a distance that allows communication with the wireless communication unit of the primary storage device.
The storage unit stores the selection data,
The flight control unit controls flight flight according to the flight instruction information;
The wireless communication unit transmits the selection data to the secondary storage device at a distance communicable with the wireless communication unit of the secondary storage device;
The secondary storage device
The wireless communication unit receives the selection data from the autonomous flying device at a distance that allows communication with the wireless communication unit of the autonomous flying device,
The storage unit stores the selection data.

The primary storage apparatus of the present invention
Including a storage unit, a selection unit, and a wireless communication unit;
The storage unit stores data,
The selection unit arbitrarily selects data to be transferred to the secondary storage device from the data in the storage unit,
The wireless communication unit transmits the selected selection data and flight instruction information for flying toward the secondary data center to the autonomous flight device at a distance that allows communication with the wireless communication unit of the autonomous flight device. , Send,
It is used for the backup device of the present invention.

The secondary storage device of the present invention
Including a storage unit and a wireless communication unit;
The wireless communication unit receives selection data from the autonomous flight device at a distance that allows communication with the wireless communication unit of the autonomous flight device,
The storage unit stores the selection data,
It is used for the backup device of the present invention.

The autonomous flight device of the present invention is
Including a steering control unit, a storage unit, and a wireless communication unit;
The wireless communication unit is
Receiving selection data and flight instruction information from the primary storage device at a distance communicable with the wireless communication unit of the primary storage device;
Sending the selection data to the secondary storage device at a distance communicable with the wireless communication unit of the secondary storage device,
The storage unit stores the selection data,
The flight control unit controls flight flight according to the flight instruction information;
It is used for the backup device of the present invention.

The backup method of the present invention
Using a primary data center including a primary storage device, a secondary data center including a secondary storage device, and an autonomous flight device;
The primary storage device and the autonomous flight device are capable of wireless communication,
The autonomous flight device and the secondary storage device are capable of wireless communication,
A selection step of arbitrarily selecting data to be transferred to the secondary storage device from the stored data in the primary storage device;
The selection data and flight instruction information for flying toward the secondary data center are transmitted from the primary storage device to the autonomous flight device at a distance that allows wireless communication with the autonomous flight device. Sending process,
A receiving step of receiving the selection data and the flight instruction information from the primary storage device at a distance capable of wireless communication with the primary storage device by the autonomous flight device;
A storage step of storing the selection data in the autonomous flight device;
A maneuvering step of controlling a flight maneuvering according to the flight instruction information, the autonomous flying device;
A transmission step of transmitting the selection data from the autonomous flying device to the secondary storage device at a distance capable of wireless communication with the secondary storage device;
A receiving step of receiving the selection data from the autonomous flying device at a distance capable of wireless communication with the autonomous flying device by the secondary storage device; and
The secondary storage device includes a storage step of storing the selection data.

  The program of the present invention causes a computer to execute the backup method of the present invention.

  The recording medium of the present invention can be read by a computer in which the program of the present invention is recorded.

  According to the present invention, for example, even a large amount of data can be transferred from the primary data center to the secondary data center in a short time and easily and at low cost.

FIG. 1 is a block diagram illustrating an example of a backup device according to the first embodiment. FIG. 2 is a block diagram illustrating an example of an autonomous flight device in the backup device of the first embodiment. FIG. 3 is a block diagram illustrating a hardware configuration of the primary data center according to the first embodiment. FIG. 4 is a block diagram illustrating a hardware configuration of the secondary data center according to the first embodiment. FIG. 5 is a block diagram illustrating a hardware configuration of the autonomous flight apparatus according to the first embodiment. FIG. 6 is a flowchart illustrating an example of the backup method according to the first embodiment. FIG. 7 is a block diagram illustrating an example of a backup device according to the second embodiment. FIG. 8 is a flowchart illustrating an example of the backup method according to the second embodiment.

  An embodiment of the present invention will be described. Note that the present invention is not limited to the following embodiments. In addition, in each following figure, the same code | symbol is attached | subjected to the same part. Moreover, the description of each embodiment can use each other's description unless there is particular mention. Further, the configurations of the embodiments can be combined unless otherwise specified.

[Embodiment 1]
An example of a backup device and a backup method of the present invention will be described with reference to the drawings.

<Backup device>
FIG. 1 is a block diagram illustrating an example of a backup device of the present embodiment, and FIG. 2 is a block diagram illustrating an example of an autonomous flight device in the backup device of the present embodiment. The backup device includes a primary data center 1, a secondary data center 2, and an autonomous flight device 3. The primary data center 1 is also referred to as, for example, a master site or a master data center, while the secondary data center 2 is also referred to as, for example, a remote site or a remote data center. The backup device of this embodiment is also referred to as a backup system.

  For example, the primary storage device 10 and the autonomous flight device 3 can be connected by wireless communication when the autonomous flight device 3 is close to the primary storage device 10, and can be connected to the secondary storage device 20. For example, the autonomous flying device 3 can be connected by wireless communication in a state in which the autonomous flying device 3 approaches the secondary storage device 20.

  The primary storage apparatus 10 and the secondary storage apparatus may be connectable via the communication line network 4, for example.

(1) Primary Data Center The primary data center 1 includes a primary storage device 10, and the primary storage device 10 includes a storage unit 101, a selection unit 102, and a wireless communication unit 103. The primary data center 1 further includes, for example, a host device 11, and the host device 11 is connected to the primary storage device 10. In the primary data center 1, business applications are usually executed by the host device 11, and information obtained thereby is stored in the primary storage device 10.

  The storage unit 101 in the primary storage device 10 stores data. The data is, for example, information obtained by executing a business application by the host device 11 as described above.

  The selection unit 102 in the primary storage apparatus 10 arbitrarily selects data to be transferred from the data in the storage unit 101 to the secondary storage apparatus 20 in the secondary data center 2. When initial synchronization is performed on the secondary storage apparatus 20 after initial construction or recovery from a failure, for example, all data in the storage unit 101 of the primary storage apparatus 10 is selected. On the other hand, if the data in the storage unit 101 of the primary storage device 10 is newly updated after data replication in the secondary storage device 20, the updated data, that is, the storage unit 201 of the secondary storage device 20 is updated. Difference data of the storage unit 101 of the primary storage apparatus 10 with respect to this data is selected.

  The wireless communication unit 103 in the primary storage device 10 sends the selection data and the secondary data center 2 to the autonomous flight device 3 at a distance that allows communication with the wireless communication unit 303 of the autonomous flight device 3. The flight instruction information to fly is transmitted. The wireless communication unit 103 of the primary storage device 10 will be described later together with the wireless communication unit 303 of the autonomous flying device 3 and the wireless communication unit 203 of the secondary storage device 20.

(2) Secondary Data Center The secondary data center 2 includes a secondary storage device 20, and the secondary storage device 20 includes a storage unit 201 and a wireless communication unit 203. The secondary data center 2 further includes, for example, a host device 21, and the host device 21 is connected to the secondary storage device 20. Normally, the secondary data center 2 executes a job on behalf of the primary data center 1 when the primary data center 1 becomes unusable. Specifically, a business application is executed by the host device 21, and data obtained thereby is newly stored in the secondary storage device 20.

  The storage unit 201 in the secondary storage device 20 stores the selection data. As described above, since the secondary storage device 20 is a backup of the primary storage device 10 in the primary data center 1, the secondary storage device 20 stores the selected data selected by the primary storage device 10. As described above, when the secondary data center 2 executes a business on behalf of the primary data center 1, the storage unit 201 further stores data obtained by executing the business application of the host device 21. To do.

  The wireless communication unit 203 in the secondary storage device 20 receives the selection data from the autonomous flight device 3 at a distance that allows communication with the wireless communication unit 303 of the autonomous flight device 3. The wireless communication unit 203 of the secondary storage device 20 will be described later together with the wireless communication unit 303 of the autonomous flying device 3 and the wireless communication unit 103 of the primary storage device 10.

(3) Autonomous flying device The autonomous flying device 3 includes a steering control unit 302, a storage unit 301, and a wireless communication unit 303. The autonomous flying device 3 is a flying device capable of so-called unmanned automatic driving. Examples of the autonomous flight device 3 include a drone. The autopilot system of the autonomous flying device 3 is not particularly limited, and for example, a GPS (Global Pointing System) system can be used. The GPS method is a method of setting the flight route by measuring the current coordinates of the autonomous flying device 3 and the coordinates of the destination (secondary data center 2), for example.

  As described above, the autonomous flying device 3 includes the wireless communication unit 303, and the wireless communication unit 303 is connected to the wireless communication unit 103 of the primary storage device 10 from the primary storage device 10 by the distance from the primary storage device 10. The selection data and the flight instruction information are received. The wireless communication unit 303 of the autonomous flying device 3 will be described later together with the wireless communication unit 103 of the primary storage device 10 and the wireless communication unit 203 of the secondary storage device 20.

  The storage unit 301 of the autonomous flight device 3 stores the received selection data.

  The steering control unit 302 of the autonomous flight device 3 controls the flight control according to the received flight instruction information. The flight instruction information includes, for example, information for specifying the location of the secondary data center 2 that is the destination. The autonomous flying device 3 can perform the above-described automatic maneuvering by controlling the maneuvering control unit 302 based on the flight instruction information.

  The wireless communication unit 303 of the autonomous flying device 3 transmits the selection data to the secondary storage device 20 at a distance that allows communication with the wireless communication unit 203 of the secondary storage device 20.

(4) Wireless Communication The wireless communication unit 103 of the primary storage device 10, the wireless communication unit 203 of the secondary storage device 20, and the wireless communication unit 303 of the autonomous flying device 3 will be described together.

  The wireless communication units 103, 203, and 303 perform data transmission / reception between the primary storage device 10 and the autonomous flight device 3, and between the autonomous flight device 3 and the secondary storage device 20, respectively. The data is the selection data selected by the selection unit 102 of the primary storage apparatus 10 as described above. In the backup device of this embodiment, the data transfer from the primary storage device 10 to the secondary storage device 20 via the autonomous flight device 3 is performed particularly when the amount of the selected data is large. For this reason, the communication method of the wireless communication units 103, 203, and 303 is preferably high-speed wireless communication from the viewpoint of shortening the transfer time. The transfer speed of high-speed wireless communication is not particularly limited, and can be set according to, for example, the type and standard of high-speed wireless communication to be used. When the standard is IEEE 802.11ad, for example, the distance is 10 m and the bandwidth can be about several Gbps, specifically, 10 Gbps or more.

  In the backup device of the present embodiment, the selection data can be transferred only between the specific primary data center 1, the specific autonomous flight device 3, and the specific secondary data center 2, respectively. preferable. That is, it is desirable to prevent the selection data from being transferred to devices other than the primary data center 1, the autonomous flying device 3, and the secondary data center 2. For this reason, near field communication is preferable as the communication method of the wireless communication units 103, 203, and 303, respectively. As a result, first, the primary storage device 10 and the autonomous flight device 3 of the primary data center 1 can communicate with each other through the short-range wireless communication, that is, at a short distance, from the primary storage device 10. After the selection data is transferred to the autonomous flying device 3, and after the autonomous flying device 3 moves from the primary data center 1 to the secondary data center 2, the autonomous flying device 3 and the secondary data center 2 The selection data can be transferred from the autonomous flying device 3 to the secondary storage device 20 in a state where the secondary storage device 20 can communicate with the secondary storage device 20 by the short-range wireless communication, that is, at a short distance. The short distance is not particularly limited, and can be set according to, for example, the type of short distance wireless communication to be used. For example, short-distance high-speed wireless communication is particularly preferable as the communication method.

  For the same reason, for example, in the wireless communication between the primary data center 1 and the autonomous flight device 3 and the wireless communication between the autonomous flight device 3 and the secondary data center 2, the selection data Prior to transmission / reception, it is preferable to perform transmission / reception when they are mutually verified and authenticated.

  The backup device of the present embodiment uses, for example, the autonomous flying device 3 and wireless communication in the connection between the primary storage device 10 of the primary data center 1 and the secondary storage device 20 of the secondary data center 2. In addition to the transfer method of the selected data, the primary storage device 10 of the primary data center 1 and the secondary storage device 20 of the secondary data center 2 can be connected by the communication network 4. Good. The use of the communication network 4 will be described later in the second embodiment, but the present invention is not limited to this.

<Hardware configuration>
Next, FIG. 3 and FIG. 4 exemplify block diagrams of hardware configurations of the primary data center 1 and the secondary data center 2 in the backup device of the present embodiment, respectively, and FIG. 5 shows an autonomous system in the backup device. 2 is a block diagram illustrating a hardware configuration of the type flight device 3. FIG.

(1) Primary Data Center The host device 11 in the primary data center 1 includes, for example, a CPU (Central Processing Unit) 400 and a memory 410, and the memory 410 is connected to the CPU 400 via a communication bus, for example. The host device 11 further has an interface (I / F) such as an input / output, for example. The I / F is connected to the communication bus, and the I / F includes, for example, an input device, A display, a storage device, a communication device, and the like are connected. The program 411 is, for example, a business program for the host device 11 to perform business processing, a control program for controlling the primary storage device 10, and the like. The CPU 400 is responsible for overall control of the host device 11 and implements various functions of the host device 11 by executing a program 411 in the memory 410, for example. For example, the program 411 is stored in the storage device, read out from the memory 410, and executed by the CPU 400.

  The primary storage device 10 in the primary data center 1 includes, for example, a CPU 300, a memory 310, a storage device 320, and a communication device 330. The memory 310 is connected to the CPU 300 via a communication bus, for example. The primary storage device 11 further has an I / F such as an input / output, for example. The I / F is connected to the communication bus, and the I / F includes, for example, a storage device 320, A communication device 330, an input device, a display, and the like are connected. The program 311 is a program for executing, for example, a function for writing data to the storage device 320, a selection function for selecting arbitrary data from the written data, a function for connecting to the outside via the communication device 330, and the like. The CPU 300 is responsible for overall control of the primary storage apparatus 10, and implements various functions of the primary storage apparatus 10 by executing a program 311 of the memory 310, for example. For example, the program 311 is stored in the storage device 320, read out from the memory 310, and executed by the CPU 300. The selection unit 102 of the primary storage device 10 is executed by the CPU 300, for example. The communication device 330 is a device that performs wireless communication by the above-described wireless communication method, and may further include a device that performs communication via a communication line network. The storage device 320 is a storage device that secures a volume for storing information.

  In the primary data center 1, the host device 11 and the primary storage device 10 each have a port, for example, and are connected via the port.

  The memories 310 and 410 include, for example, a main memory, and the main memory is also referred to as a main storage device. When the CPUs 300 and 400 perform processing, for example, the memory 310 and 410 read various operation programs such as the program of the present invention stored in an auxiliary storage device described later, and the CPUs 300 and 400 store the memory 310. , 410 to receive the data and execute the program. The main memory is a RAM (Random Access Memory), and further includes, for example, a ROM (Read Only Memory).

  The storage device 320 is also referred to as a so-called auxiliary storage device for the main memory (main storage device), for example. The storage device 320 includes, for example, a storage medium and a drive that reads / writes (input / output) the storage medium. The storage medium is not particularly limited, and may be, for example, a built-in type or an external type, such as HD (hard disk), FD (floppy (registered trademark) disk), CD-ROM, CD-R, CD-RW, MO, Examples of the drive include a DVD, a flash memory, and a memory card, and the drive is not particularly limited. Examples of the storage device 320 include a hard disk drive (HDD) in which a storage medium and a drive are integrated, and a solid state drive (SSD). The storage device 320 stores, for example, an operation program such as the program of the present invention. In the primary storage device 10 of the primary data center 1, the storage device 320 becomes the storage unit 101.

  The wireless communication device is preferably, for example, a high-speed wireless communication device, a short-range wireless communication device, or a short-range high-speed wireless communication device. As such a wireless communication device, for example, a commercially available communication device can be used.

(2) Secondary Data Center Next, the host device 21 in the secondary data center 2 has, for example, a CPU 400 and a memory 410, and the memory 410 is connected to the CPU 400 by, for example, a communication bus. The host device 21 further has an input / output I / F, for example. The I / F is connected to the communication bus, and the I / F includes, for example, an input device, a display, a storage device, A communication device or the like is connected. The program 412 is, for example, a business program for the host device 21 to perform business processing, a control program for controlling the secondary storage device 20, and the like. The CPU 400 is responsible for overall control of the host device 21 and implements various functions of the host device 21 by executing a program 412 of the memory 410, for example. For example, the program 412 is stored in the storage device, read out from the memory 410, and executed by the CPU 400.

  The secondary storage device 20 in the secondary data center 2 includes, for example, a CPU 300, a memory 310, a storage device 320, and a communication device 330. The memory 310 is connected to the CPU 300 via a communication bus, for example. The secondary storage apparatus 20 further has, for example, an input / output I / F, and the I / F is connected to the communication bus. The I / F includes, for example, a storage device 320, a communication device, and the like. 330, an input device, a display, and the like are connected. The program 312 is a program for executing, for example, a function of writing data to the storage device 320, a function of connecting to the outside via the communication device 330, and the like. The CPU 300 is responsible for overall control of the secondary storage apparatus 20, and implements various functions of the secondary storage apparatus 20 by executing a program 312 of the memory 310, for example. For example, the program 312 is stored in the storage device 320, read out from the memory 310, and executed by the CPU 300. The communication device 330 is a device that performs wireless communication by the above-described wireless communication method, and may further include a device that performs communication via a communication line network. The storage device 320 is a storage device that secures a volume for storing information.

  In the secondary data center 2, the host device 21 and the secondary storage device 20 each have a port, for example, and are connected via the port. In the secondary data center 2, the memories 310 and 410 and the storage device 320 are the same as illustrated in the primary data center 1. In the secondary storage device 20 of the secondary data center 2, the storage device 320 becomes the storage unit 201.

(3) Autonomous Flight Device Next, the autonomous flight device 3 includes, for example, a CPU 500 and a memory 510, and the memory 510 is connected to the CPU 500 by, for example, a communication bus. The autonomous flying device 3 further includes, for example, an input / output I / F, and the I / F is connected to the communication bus. The I / F includes, for example, an input device, a drive, a communication Devices, cameras, sensors, etc. are connected. The program 511 is a program for executing, for example, a flight control function of the autonomous flying device 3, a function of writing data to the storage device 520, a function of connecting to the outside via the communication device 530, and the like. The CPU 500 is responsible for overall control of the autonomous flying device 3 and implements various functions of the autonomous flying device 3 by executing a program 511 in the memory 510, for example. For example, the program 511 is stored in the storage device 520, read out from the memory 510, and executed by the CPU 500. The steering control unit 302 of the autonomous flying device 3 is executed by the CPU 500, for example. The communication device 530 is a device that performs wireless communication by the above-described wireless communication method. The storage device 520 is a storage device that secures a volume for storing information.

  The memory 510 and the storage device 520 are the same as illustrated in the primary data center 1, for example. Since the autonomous flying device 3 flies with the storage device 520 mounted thereon, the storage device 520 is preferably a semiconductor storage device such as an SSD, among others.

<Backup method>
Next, the backup method of this embodiment will be described with reference to the flowchart of FIG. The backup method of this embodiment is implemented as follows, for example, using the backup device of FIG. Note that the backup method of the present embodiment is not limited to the use of the backup device of FIG.

  First, the selection unit 102 of the primary storage device 10 of the primary data center 1 arbitrarily selects data to be transferred for backup from the data stored in the storage unit 101 to the secondary storage device 20 of the secondary data center 2. Select (S100).

  The method for selecting the data to be transferred is not particularly limited. When the secondary storage device 20 is initially constructed, and when the secondary storage device 20 is initially synchronized with the primary storage device 10 after recovery from a failure, the primary storage device 20 is primary. All data in the storage unit 101 of the storage device 10 is selected and used as the selection data. In addition, when the data in the storage unit 101 of the primary storage device 10 is newly updated after the backup in the secondary storage device 20, the updated data, that is, the data in the storage unit 201 of the secondary storage device 20 is updated. The difference data in the storage unit 101 of the primary storage apparatus 10 is selected and used as the selection data. The management of difference data is not particularly limited, and for example, a system described in Japanese Patent Application Laid-Open No. 2007-241848 can be used.

  Next, the primary storage device 10 and the autonomous flight device 3 fly from the primary storage device 10 to the autonomous flight device 3 toward the selected data and the secondary data center 2 at a distance where wireless communication is possible. The flight instruction information to be transmitted is transmitted by wireless communication (S101). On the other hand, at a distance where the primary storage device 10 and the autonomous flight device 3 can communicate wirelessly, the autonomous flight device 3 receives the selection data and the flight instruction information transmitted from the primary storage device 10. Receive (S102). By disposing the autonomous flying device 3 at a distance capable of wireless communication with the primary storage device 10, the selection data can be transferred (transmitted / received) between the two by wireless communication. As described above, the flight instruction information is information specifying the location of the secondary data center 2 that is the flight destination.

  Then, the autonomous flying device 3 stores the received selection data in the storage unit 301 (S103).

  Next, the autonomous flying device 3 is moved by flight from the primary data center 1 to the secondary data center 2 (S104). Since the autonomous flying device 3 is autonomous, it can fly toward the secondary data center 2 by controlling the flight operation according to the received flight instruction information.

  When the autonomous flying device 3 reaches a distance that allows wireless communication with the secondary storage device 20 of the secondary data center 2, the autonomous flying device 3 transmits the selection data to the secondary storage device 20 (S105). . On the other hand, the secondary storage device 20 receives the selection data transmitted from the autonomous flight device 3 at a distance where the autonomous flight device 3 and the secondary storage device 20 can communicate wirelessly (S106).

  The secondary storage apparatus 20 stores the received selection data in the storage unit 201 (S107), and the backup in the secondary storage apparatus 20 is completed. For backup in the secondary storage device 20, for example, the steps (S100) to (S107) may be repeated periodically, and a predetermined amount of update data is stored in the storage unit 101 of the primary storage device 10. Each time the process is performed, the process (S100) to the process (S107) may be repeated.

  Thus, according to the backup method using the backup device of the present embodiment, the selection data of the primary storage device 10 is transferred to the storage unit 301 mounted on the autonomous flying device 3 using wireless communication. The selection data is moved by the flight of the autonomous flying device 3. Furthermore, the selection data in the storage unit 301 of the autonomous flying device 3 can be transferred to the storage unit 201 of the secondary storage device 20 using wireless communication. For this reason, for example, the problem of transfer time when using a transportation system or a public line as described above can be avoided, and the installation of a dedicated high-speed line is not necessary, so that the cost can be reduced.

[Embodiment 2]
As shown in the first embodiment, the backup device of the present invention includes, for example, the primary storage device 10 of the primary data center 1 and the secondary storage device 20 of the secondary data center 2 via the communication network 4. However, it may be connectable. Therefore, in the present embodiment, in the transfer of the selection data from the primary storage apparatus 10 to the secondary storage apparatus 20, a communication system for wireless communication using the autonomous flying apparatus 3 and a communication line network 4 such as a public line are used. An example of a mode capable of switching between communication methods using the network will be described. In addition, unless otherwise indicated, the said Embodiment 1 can be used.

  FIG. 7 shows an example of a block diagram of the backup device of this embodiment. In the backup device of the present embodiment, the other configuration is the same as that of the first embodiment except that the primary storage device 10 of the primary data center 1 further includes a communication method switching unit 104.

  For example, the communication method switching unit 104 selects a communication method according to the time required to transfer the selection data, and switches the communication method. Specifically, for example, the communication method switching unit 104 selects the selection from the primary storage device 10 to the secondary storage device 20 based on the data amount of the selection data by the communication method of wireless communication using the autonomous flying device 3. Calculating the time required to transfer the data and the time required to transfer the selected data from the primary storage device 10 to the secondary storage device 20 by the communication method using the communication network 4; A communication method with a short transfer time is selected, and the primary storage apparatus 10 is instructed to transfer data using the selected communication method. For example, when the selection data is data for initial construction or initial synchronization of the secondary storage device 20, the communication method switching unit 104 selects a communication method using the autonomous flying device 3 and selects the selected communication. Data transfer by the method may be instructed to the primary storage apparatus 10.

  The communication system switching unit 104 in the primary storage apparatus 10 can be executed by the CPU 300, for example.

  The type of the communication line network 4 is not particularly limited, and examples thereof include a wireless public communication line network. Specific examples thereof include an Internet line, a LAN (Local Area Network), a WiFi (Wireless Fidelity), and the like. It is done.

  Next, the backup method of this embodiment will be described with reference to the flowchart of FIG. The backup method of this embodiment is implemented as follows, for example, using the backup device of FIG. Note that the backup method of the present embodiment is not limited to the use of the backup device of FIG.

  First, the selection unit 102 of the primary storage device 10 of the primary data center 1 arbitrarily selects data to be transferred for backup from the data stored in the storage unit 101 to the secondary storage device 20 of the secondary data center 2. Select (S100).

  Next, the transfer time of the selected data is calculated by the communication method switching unit 104 of the primary storage device 10 (S200). Specifically, from the data amount of the selected data, the time (T1) required to transfer from the primary storage device 10 to the secondary storage device 20 by wireless communication and the communication method using the autonomous flying device 3 Then, the time (T2) required to transfer from the primary storage apparatus 10 to the secondary storage apparatus 20 is calculated by the communication method using the communication line network 4.

  Then, the communication system switching unit 104 determines whether the transfer time (T1) is shorter than the transfer time (T2). When the transfer time (T1) by the communication method using the wireless communication and the autonomous flying device 3 is short (YES), this is selected as the communication method (S202), and thereafter, as in the first embodiment, the above steps are performed. (S101)-the said process (S107) is performed.

  On the other hand, when the transfer time (T2) based on the communication method using the communication line network 4 is the same as or shorter than the transfer time (T1) (NO), this is selected as the communication method (S203). The selection data is transmitted from the primary storage apparatus 10 to the secondary storage apparatus 20, and the secondary storage apparatus 20 executes the step (S107).

  Thus, according to this embodiment, according to the data amount of the selection data to be transferred, it is transferred by the wireless communication method using the autonomous flying device 3, or the communication line network 4 such as a public line is used. You can switch between forwarding. For this reason, when the selection data has a large amount of data like the initial data, for example, the autonomous flying device 3 is used to perform transfer with reduced transfer time by a wireless communication method capable of high-speed communication. be able to. On the other hand, when the selection data has a small amount of data such as update data (difference data), transfer using a public communication line can be performed.

[Embodiment 3]
The program of this embodiment is a program that can execute the backup method of each of the above embodiments on a computer. Or the program of this embodiment may be recorded on a computer-readable recording medium, for example. The recording medium is not particularly limited, and examples thereof include a read only memory (ROM), a hard disk (HD), an optical disk, a floppy (registered trademark) disk (FD), and the like.

  While the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

<Appendix>
Some or all of the above embodiments and examples can be described as the following supplementary notes, but are not limited thereto.
(Appendix 1)
Including a primary data center, a secondary data center, and an autonomous flight device;
The primary data center includes a primary storage device, and the secondary data center includes a secondary storage device;
The primary storage device includes a storage unit, a selection unit, and a wireless communication unit,
The secondary storage device includes a storage unit and a wireless communication unit,
The autonomous flight device includes a steering control unit, a storage unit, and a wireless communication unit;
The primary storage device
The storage unit stores data,
The selection unit arbitrarily selects data to be transferred to the secondary storage device from the data in the storage unit,
The wireless communication unit has the selected selection data and the flight instruction information for flying toward the secondary data center at a distance where the wireless communication unit can communicate with the wireless communication unit of the autonomous flight device. Send;
The autonomous flying device includes:
The wireless communication unit receives the selection data and the flight instruction information from the primary storage device at a distance that allows communication with the wireless communication unit of the primary storage device.
The storage unit stores the selection data,
The flight control unit controls flight flight according to the flight instruction information;
The wireless communication unit transmits the selection data to the secondary storage device at a distance communicable with the wireless communication unit of the secondary storage device;
The secondary storage device
The wireless communication unit receives the selection data from the autonomous flying device at a distance that allows communication with the wireless communication unit of the autonomous flying device,
The backup device, wherein the storage unit stores the selection data.
(Appendix 2)
The backup device according to appendix 1, wherein in the primary storage device, the autonomous flight device, and the secondary storage device, each of the wireless communication units is a short-distance high-speed wireless communication method wireless communication unit.
(Appendix 3)
The backup device according to appendix 1 or 2, wherein the primary storage device and the secondary storage device are connectable via a communication network.
(Appendix 4)
The primary storage device and the secondary storage device can be connected via a communication network,
The primary storage device further includes a communication method switching unit,
The communication method switching unit includes a time required to transfer from the data amount of the selection data to the secondary storage device from the primary storage device by a communication method using the autonomous flying device, and the communication line. Calculate the time required to transfer from the primary storage device to the secondary storage device by a communication method using a network, select a communication method with a short transfer time, and transfer data according to the selected communication method The backup device according to any one of appendices 1 to 3, which instructs the primary storage device.
(Appendix 5)
The primary storage device and the secondary storage device can be connected via a communication network,
The primary data center further includes a communication method switching unit,
When the selection data is data for initial construction or initial synchronization of the secondary storage device, the communication method switching unit selects a communication method using the autonomous flying device, and stores data of the selected communication method. 4. The backup device according to any one of appendices 1 to 3, which instructs the primary storage device to perform transfer.
(Appendix 6)
The backup device according to any one of appendices 3 to 5, wherein the communication line network is a public line.
(Appendix 7)
The primary data center includes a primary host device that executes business applications and accesses the primary storage device,
The backup device according to any one of appendices 1 to 6, wherein the storage unit of the primary storage device stores data obtained by executing a business application of the primary host device.
(Appendix 8)
Including a storage unit, a selection unit, and a wireless communication unit;
The storage unit stores data,
The selection unit arbitrarily selects data to be transferred to the secondary storage device from the data in the storage unit,
The wireless communication unit transmits the selected selection data and flight instruction information for flying toward the secondary data center to the autonomous flight device at a distance that allows communication with the wireless communication unit of the autonomous flight device. , Send,
A primary storage device used for the backup device according to any one of appendices 1 to 7.
(Appendix 9)
Including a storage unit and a wireless communication unit;
The wireless communication unit receives selection data from the autonomous flight device at a distance that allows communication with the wireless communication unit of the autonomous flight device,
The storage unit stores the selection data,
A secondary storage device used for the backup device according to any one of appendices 1 to 7.
(Appendix 10)
Including a steering control unit, a storage unit, and a wireless communication unit;
The wireless communication unit is
Receiving selection data and flight instruction information from the primary storage device at a distance communicable with the wireless communication unit of the primary storage device;
Sending the selection data to the secondary storage device at a distance communicable with the wireless communication unit of the secondary storage device,
The storage unit stores the selection data,
The flight control unit controls flight flight according to the flight instruction information;
An autonomous flying device used in the backup device according to any one of appendices 1 to 7.
(Appendix 11)
Using a primary data center including a primary storage device, a secondary data center including a secondary storage device, and an autonomous flight device;
The primary storage device and the autonomous flight device are capable of wireless communication,
The autonomous flight device and the secondary storage device are capable of wireless communication,
A selection step of arbitrarily selecting data to be transferred to the secondary storage device from the stored data in the primary storage device;
The selected selection data and the flight instruction information for flying toward the secondary data center are sent from the primary storage device to the autonomous flight device at a distance that allows wireless communication with the autonomous flight device. Sending process to send,
A receiving step of receiving the selection data and the flight instruction information from the primary storage device at a distance capable of wireless communication with the primary storage device by the autonomous flight device;
A storage step of storing the selection data in the autonomous flight device;
A maneuvering step of controlling a flight maneuvering according to the flight instruction information, the autonomous flying device;
A transmission step of transmitting the selection data from the autonomous flying device to the secondary storage device at a distance capable of wireless communication with the secondary storage device;
A receiving step of receiving the selection data from the autonomous flying device at a distance capable of wireless communication with the autonomous flying device by the secondary storage device; and
The backup method according to claim 2, further comprising a storing step of storing the selected data.
(Appendix 12)
The backup method according to claim 11, wherein the wireless communication method is a short-distance high-speed wireless communication method.
(Appendix 13)
The primary storage device and the secondary storage device can be connected via a communication network,
Furthermore, it includes a communication system switching step,
The communication method switching step includes a time required to transfer from the data amount of the selection data to the secondary storage device from the primary storage device by a communication method using the autonomous flying device, and the communication line. Calculate the time required to transfer from the primary storage device to the secondary storage device by a communication method using a network, select a communication method with a short transfer time, and transfer data according to the selected communication method 13. The backup method according to appendix 11 or 12, wherein the primary storage apparatus is instructed.
(Appendix 14)
The primary storage device and the secondary storage device can be connected via a communication network,
Furthermore, it includes a communication system switching step,
In the communication method switching step, when the selection data is data for initial construction or initial synchronization of the secondary storage device, a communication method using the autonomous flying device is selected, and data of the selected communication method is selected. 13. The backup method according to appendix 11 or 12, wherein the primary storage apparatus is instructed to transfer.
(Appendix 15)
15. The backup method according to appendix 13 or 14, wherein the communication line network is a public line.
(Appendix 16)
A program that causes a computer to execute the backup method according to any one of appendices 11 to 15.
(Appendix 17)
A computer-readable recording medium on which the program according to appendix 16 is recorded.

  According to the present invention, for example, even a large amount of data can be transferred from the primary data center to the secondary data center in a short time and easily and at low cost.

1 Primary data center 10 Primary storage device 11, 21 Host device 101, 201, 301 Storage unit 102 Selection unit 104 Communication method switching unit 103, 203, 303 Wireless communication unit 2 Secondary data center 20 Secondary storage device 3 Autonomous Type flight device 302 Maneuvering control unit 4 Communication network 300, 400, 500 CPU
310, 410, 510 Memory 320, 520 Storage device 330, 530 Communication device

Claims (10)

Including a primary data center, a secondary data center, and an autonomous flight device;
The primary data center includes a primary storage device, and the secondary data center includes a secondary storage device;
The primary storage device includes a storage unit, a selection unit, and a wireless communication unit,
The secondary storage device includes a storage unit and a wireless communication unit,
The autonomous flight device includes a steering control unit, a storage unit, and a wireless communication unit;
The primary storage device
The storage unit stores data,
The selection unit arbitrarily selects data to be transferred to the secondary storage device from the data in the storage unit,
The wireless communication unit has the selected selection data and the flight instruction information for flying toward the secondary data center at a distance where the wireless communication unit can communicate with the wireless communication unit of the autonomous flight device. Send;
The autonomous flying device includes:
The wireless communication unit receives the selection data and the flight instruction information from the primary storage device at a distance that allows communication with the wireless communication unit of the primary storage device.
The storage unit stores the selection data,
The flight control unit controls flight flight according to the flight instruction information;
The wireless communication unit transmits the selection data to the secondary storage device at a distance communicable with the wireless communication unit of the secondary storage device;
The secondary storage device
The wireless communication unit receives the selection data from the autonomous flying device at a distance that allows communication with the wireless communication unit of the autonomous flying device,
The backup device, wherein the storage unit stores the selection data. The backup device according to claim 1, wherein in the primary storage device, the autonomous flight device, and the secondary storage device, each of the wireless communication units is a short-distance high-speed wireless communication method wireless communication unit. Including a storage unit, a selection unit, and a wireless communication unit;
The storage unit stores data,
The selection unit arbitrarily selects data to be transferred to the secondary storage device from the data in the storage unit,
The wireless communication unit transmits the selected selection data and flight instruction information for flying toward the secondary data center to the autonomous flight device at a distance that allows communication with the wireless communication unit of the autonomous flight device. , Send,
A primary storage device used for the backup device according to claim 1. Including a storage unit and a wireless communication unit;
The wireless communication unit receives selection data from the autonomous flight device at a distance that allows communication with the wireless communication unit of the autonomous flight device,
The storage unit stores the selection data,
A secondary storage device used for the backup device according to claim 1. Including a steering control unit, a storage unit, and a wireless communication unit;
The wireless communication unit is
Receiving selection data and flight instruction information from the primary storage device at a distance communicable with the wireless communication unit of the primary storage device;
Sending the selection data to the secondary storage device at a distance communicable with the wireless communication unit of the secondary storage device,
The storage unit stores the selection data,
The flight control unit controls flight flight according to the flight instruction information;
An autonomous flight device used in the backup device according to claim 1. Using a primary data center including a primary storage device, a secondary data center including a secondary storage device, and an autonomous flight device;
The primary storage device and the autonomous flight device are capable of wireless communication,
The autonomous flight device and the secondary storage device are capable of wireless communication,
A selection step of arbitrarily selecting data to be transferred to the secondary storage device from the stored data in the primary storage device;
The selected selection data and the flight instruction information for flying toward the secondary data center are sent from the primary storage device to the autonomous flight device at a distance that allows wireless communication with the autonomous flight device. Sending process to send,
A receiving step of receiving the selection data and the flight instruction information from the primary storage device at a distance capable of wireless communication with the primary storage device by the autonomous flight device;
A storage step of storing the selection data in the autonomous flight device;
A maneuvering step of controlling a flight maneuvering according to the flight instruction information, the autonomous flying device;
A transmission step of transmitting the selection data from the autonomous flying device to the secondary storage device at a distance capable of wireless communication with the secondary storage device;
A receiving step of receiving the selection data from the autonomous flying device at a distance capable of wireless communication with the autonomous flying device by the secondary storage device; and
The backup method according to claim 2, further comprising a storing step of storing the selected data. The backup method according to claim 6, wherein the wireless communication method is a short-distance high-speed wireless communication method. The primary storage device and the secondary storage device can be connected via a communication network,
Furthermore, it includes a communication system switching step,
The communication method switching step includes a time required to transfer from the data amount of the selection data to the secondary storage device from the primary storage device by a communication method using the autonomous flying device, and the communication line. Calculate the time required to transfer from the primary storage device to the secondary storage device by a communication method using a network, select a communication method with a short transfer time, and transfer data according to the selected communication method The backup method according to claim 6 or 7, wherein the primary storage apparatus is instructed. The primary storage device and the secondary storage device can be connected via a communication network,
Furthermore, it includes a communication system switching step,
In the communication method switching step, when the selection data is data for initial construction or initial synchronization of the secondary storage device, a communication method using the autonomous flying device is selected, and data of the selected communication method is selected. The backup method according to claim 6 or 7, wherein transfer is instructed to the primary storage apparatus. A program for causing a computer to execute the backup method according to any one of claims 6 to 9.