WO2014157660A1

WO2014157660A1 - Information processing system

Info

Publication number: WO2014157660A1
Application number: PCT/JP2014/059271
Authority: WO
Inventors: 隆井村
Original assignee: 日本電気株式会社
Priority date: 2013-03-29
Filing date: 2014-03-28
Publication date: 2014-10-02
Also published as: JP6015850B2; JPWO2014157660A1

Abstract

A host computer (10a) stores data to be written in a removable medium (RM) at a predetermined timing. The host computer (10a) creates data to be transmitted from the data stored in the removable medium (RM) at a predetermined timing, and transmits the created data to a management server (20) via a network (N). The management server (20) stores the data transmitted from the host computer (10a) as backup data for the host computer (10a) that is a transmission source. Even if an abnormality occurs in the network (N), by mounting the removable medium (RM) in which the backup data is stored, the data can be backed up and restored.

Description

[Name of invention determined by ISA based on Rule 37.2] Information processing system

The present invention relates to an information processing system, a client device, a server device, and a recording medium.

Conventionally, a technique for backing up data stored in a communication device such as a PC (Personal Computer) with a predetermined server is known. For example, Patent Document 1 discloses a system in which a server stores data periodically transmitted from a communication device to be backed up so that data stored in the communication device is synchronized with data stored in the server. It is disclosed.

JP 2008-40593 A

In the system disclosed in Patent Document 1, when an abnormality occurs in communication performed between the communication device and the server, the server cannot normally synchronize the data stored in the communication device and the data stored in the server. .

The present invention has been made in view of the above circumstances, and an object thereof is to provide an information processing system, a client device, a server device, and a recording medium that more suitably backs up data stored in the client device. To do.

In order to achieve the above object, an information processing system according to the first aspect of the present invention provides:
An information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
Each of the client devices
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
The server device
First receiving means for receiving the backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among backup data stored in the storage means to an attached removable storage medium;
It is characterized by that.

A client device according to a second aspect of the present invention provides:
A client device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
It is characterized by providing.

A server device according to a third aspect of the present invention provides:
A server device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
First receiving means for receiving backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among backup data stored in the storage means to an attached removable storage medium;
It is characterized by providing.

A computer-readable recording medium on which a program according to the fourth aspect of the present invention is recorded,
A client device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
Write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
It is characterized by recording a program to function as.

A computer-readable recording medium on which a program according to the fifth aspect of the present invention is recorded,
A server device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
First receiving means for receiving backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among the backup data stored in the storage means to the attached removable storage medium;
It is characterized by recording a program to function as.

According to the present invention, the data stored in the client device can be backed up more suitably.

It is a figure which shows the structure of the communication control system which concerns on embodiment of this invention. It is a figure which shows the structure of the host computer which concerns on embodiment of this invention. It is a figure which shows an example of the write condition table memorize | stored in the memory | storage part of the host computer which concerns on embodiment of this invention. It is a figure which shows an example of the transmission condition table memorize | stored in the memory | storage part of the host computer which concerns on embodiment of this invention. It is a figure which shows the structure of the management server which concerns on embodiment of this invention. It is a figure which shows an example of the backup table memorize | stored in the memory | storage part of the management server which concerns on embodiment of this invention. It is a figure which shows an example of the backup table memorize | stored in the memory | storage part of the management server which concerns on embodiment of this invention. It is a figure which shows typically the backup process which concerns on embodiment of this invention. It is a flowchart which shows the backup process which concerns on embodiment of this invention. It is a flowchart which shows the recovery process which concerns on embodiment of this invention.

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

First, the configuration of the communication control system 1 will be described with reference to FIG. The communication control system 1 includes host computers 10a to 10d that function as communication devices, and a management server 20 that functions as a communication control device.

Each of the host computers 10a to 10d communicates with the management server 20 connected via the network N. The network N is composed of, for example, a LAN (Local Area Network) that combines Ethernet (registered trademark) and TCP (Transmission Control Protocol) / IP (Internet Protocol). The network N may be configured by either wired or wireless. Hereinafter, when the host computers 10a to 10d are not distinguished from each other, the host computers 10a to 10d are simply referred to as the host computer 10.

The host computer 10 includes a memory interface device for mounting a removable medium RM, which is a removable auxiliary storage medium. The host computer 10 stores the write target data in the removable medium RM at a predetermined timing in the removable medium RM attached to the memory interface device. The write target data is, for example, data (operation data) representing the operation status of the host computer 10. Specifically, log data, software data, configuration data, account data, dump data, and the like.

The host computer 10 transmits the transmission target data stored in the removable media RM to the management server 20 in accordance with the request from the management server 20 (when requested). The management server 20 receives data transmitted from the host computer 10 and stores the received data as backup data of the host computer 10.

Thus, the communication control system 1 backs up data stored in the host computer 10 by both the removable media RM and the management server 20. As a backup method, any of full backup, incremental backup, differential backup, and mirroring backup may be adopted.

Next, the configuration of the host computer 10 will be described with reference to FIG. The host computer 10 includes a control unit 11, a storage unit 12, a read / write unit 13, an operation unit 14, a display unit 15, and a communication unit 16.

The control unit 11 includes a CPU (Central Processing Unit), a RAM (Random Access Memory) functioning as a main memory of the CPU, a timer, and the like. The control unit 11 is connected to each unit of the host computer 10 via a system bus which is a transmission path for transferring commands and data, and controls the entire host computer 10. The control unit 11 may partially include a dedicated circuit such as an ASIC (Application （Specific Integrated Circuit).

The control unit 11 reads and executes the control program 12a stored in the storage unit 12 when the host computer 10 is turned on. Thus, the control unit 11 functions as a writing unit 11a, a transmission unit 11b, a receiving unit 11c, and a restoration unit 11d, and each unit 11a to 11d performs various processes described later. Each unit 11a to 11d performs various processes until the host computer 10 is turned off or is forcibly interrupted in accordance with a user operation.

The storage unit 12 includes a built-in auxiliary storage device that cannot be easily detached from the host computer 10, such as an HDD (Hard Disk Drive) and a ROM (Read Only Memory). The storage unit 12 stores various programs and data used by the control unit 11 to perform various processes, and various data generated or acquired by the control unit 11 performing various processes. Various programs used by the control unit 11 to perform various processes include an OS (Operating System), various application programs, and the like. The storage unit 12 stores operation data representing operation information such as log data, software data, configuration data, account data, dump data, and the like. The control unit 11 updates each operation data in response to an operation performed by the user via the operation unit 14 or a command from the management server 20 described later.

Further, the storage unit 12 stores a control program 12a, a write condition table 12b, and a transmission condition table 12c.

The write condition table 12b is an object that stores write conditions for writing operational data to the removable media RM, as shown in FIG. In the write condition table 12b, write target data, a collection command, a time, a collection destination, and the like are set in advance. The write target data is operation data representing the operation status of the host computer 10 such as log data, software data, configuration data, account data, dump data, and the like. The collection command is a command for instructing the control unit 11 to collect write target data. The time represents the timing of writing the write target data to the removable medium RM. The collection destination represents a place where write target data collected by the collection command is stored. The control unit 11 writes the write target data collected according to the write conditions set in the write condition table 12b to the removable medium RM.

In the example of FIG. 3, the frequency at which the control unit 11 writes the log data to the removable medium RM is set higher than the other write target data. The timing when the control unit 11 writes the configuration data and account data to the removable medium RM is set to the timing when each data is changed in the storage unit 12.

The time when the control unit 11 writes the dump data to the removable medium RM is set to the time when the operation data is transmitted to the management server 20 (when the operation data is requested to be transmitted from the management server 20), and the collection destination is removable. Set to media RM. That is, the dump data is data that is collected when transmission of operation data is requested from the management server 20, and is data in which the contents of operation data stored in the removable medium RM are written as they are.

In addition, the write condition table 12b collects version information of software data and increases the frequency of writing log data to the removable medium RM when the host computer 10 outputs log data exceeding a predetermined amount ( An item for setting (changing the time) or the like may be provided.

The transmission condition table 12c is an object that stores transmission conditions for transmitting operational data to the management server 20, as shown in FIG. In the transmission condition table 12c, transmission target data, time, acquisition source, and the like are set in advance. The transmission target data is operation data transmitted to the management server 20. The time represents the timing of transmitting the transmission target data. The acquisition destination represents the acquisition location of the transmission target data. The control unit 11 acquires the transmission target data from the acquisition destination at a predetermined time (at a predetermined timing) according to the transmission condition table 12c, and transmits the acquired transmission target data to the management server 20.

In the example of FIG. 4, the timing when the control unit 11 transmits the dump data to the management server 20 is set to the timing when the management server 20 requests transmission of operation data. Further, the acquisition destination of the dump data is set to the removable medium RM. That is, the control unit 11 acquires dump data generated according to the write condition table 12b from the removable medium RM when the management server 20 requests transmission of operation data, and uses the acquired dump data as operation data. 20 to send. Through the above processing, the host computer 10 can generate and transmit transmission target data from data already stored in the removable medium RM. That is, since the host computer 10 does not need to perform processing for collecting operation data from various data stored in the storage unit 12 when transmitting operation data to the management server 20, processing performed by the host computer 10 The load of is reduced. The control unit 11 may transmit various data stored in the storage unit 12 to the management server 20 as backup data as it is.

The read / write unit 13 shown in FIG. 2 includes an external memory interface device. A removable medium RM is attached to the read / write unit 13. The read / write unit 13 writes and reads data (for example, operation data) on the removable medium RM under the control of the control unit 11.

The operation unit 14 includes an input interface device such as a mouse or a keyboard. The operation unit 14 receives an operation from the user under the control of the control unit 11 and supplies a signal corresponding to the received operation to the control unit 11.

The display unit 15 includes a display device such as a CRT (Cathode Ray Tube) or an LCD (Liquid Crystal Display). The display unit 15 displays an image indicated by the image data on the screen based on the image data supplied from the control unit 11.

The operation unit 14 and the display unit 15 may be configured by a so-called touch panel display in which the operation unit 14 and the operation unit 15 are integrated. In this case, the input interface device provided in the touch panel display and the display device are integrated, and an operation signal corresponding to the position where the user presses the touch panel display is supplied to the control unit 11.

The communication unit 16 includes a communication interface device such as a NIC (Network Interface Card). The communication unit 16 communicates with the management server 20 via the network N under the control of the control unit 11.

Next, the configuration of the management server 20 will be described with reference to FIG. The management server 20 includes a control unit 21, a storage unit 22, a read / write unit 23, and a communication unit 24.

The control unit 21 includes a CPU, a RAM that functions as a main memory of the CPU, a timer, and the like. The control unit 21 is connected to each unit of the management server 20 via a system bus that is a transmission path for transferring commands and data, and controls the management server 20 as a whole. Note that the control unit 21 may partially include a dedicated circuit such as an ASIC.

Further, the control unit 21 reads and executes the control program 22a stored in the storage unit 22 when the power of the management server 20 is turned on. Thus, the control unit 21 functions as a data receiving unit 21a, a data updating unit 21b, a specifying unit 21c, a data providing unit 21d, and a data storage unit 21e, and each unit 21a to 21e performs various processes described later. Each unit 21a to 21e performs various processes until the power of the management server 20 is turned off or is forcibly interrupted according to a user operation.

The storage unit 22 includes an auxiliary storage device built in the management server 20 such as an HDD or a ROM. The storage unit 22 stores various programs and data used by the control unit 21 to perform various processes, and various data generated or acquired by the control unit 21 performing various processes. The various programs used for the control unit 21 to perform various processes include an OS and various application programs.

Further, the storage unit 22 stores a control program 22a and a backup table 22b.

In the example of FIG. 6A, the backup table 22b stores device identification information ID_a to ID_d of all the host computers 10 connected via the network N and backup data 1 to 4 of each host computer 10. It is an object. The device identification information is information for uniquely identifying the host computer 10 such as a MAC address (Media Access Control address). The backup data is operation data (for example, dump data) received from the host computer 10. The backup data is sequentially updated by the control unit 21 according to a predetermined backup method.

In addition, the backup table 22b is updated as the number of host computers 10 connected to the network N increases or decreases. For example, as shown in FIG. 7, when the host computer 10c is disconnected from the network N due to a failure or the like, the control unit 21 obtains device identification information ID_c that is device identification information of the host computer 10c from the backup table 22b. delete. When the host computer 10 is newly connected to the network N (here, referred to as the host computer 10e), the control unit 21 adds the device identification information ID_e of the host computer 10e to the backup table 22b. As shown in FIG. 6B, the control unit 21 associates the host computer 10e with the backup data of the host computer 10c.

The read / write unit 23 shown in FIG. 5 includes an external memory interface device. The read / write unit 23 is loaded with a removable medium RM. The read / write unit 23 writes and reads data (for example, operation data) on the removable medium RM under the control of the control unit 21.

The communication unit 24 includes a communication interface device such as a NIC. The communication unit 24 communicates with the host computer 10 via the network N under the control of the control unit 21.

In the communication control system 1 configured as described above, backup processing and restoration (restoration) processing are performed. The backup process is a process of storing operation data stored in the storage unit 12 of the host computer 10 in the removable medium RM and the management server 20. The recovery process is a process for recovering the backup data stored in the management server 20 to the host computer 10.

Next, the flow of backup processing in the communication control system 1 will be described with reference to FIG.

The data receiving unit 21a of the management server 20 repeats the process of determining whether or not a predetermined time (timing) for acquiring operation data has arrived after the management server 20 is started (step S21). When the data receiving unit 21a determines that the predetermined time for acquiring the operation data has arrived (step S21; YES), the data reception unit 21a transmits the operation data to the host computer 10 indicated by the device identification information stored in the backup table 22b. A request is made (step S22).

Specifically, in order to make this request, the data reception unit 21a generates an operation data transmission request packet in which each piece of device identification information (such as a MAC address) stored in the backup table 22b is designated as a transmission destination. The data receiving unit 21a generates an operation data transmission request packet according to, for example, SNMP (Simple Network Management Protocol). The data receiving unit 21 a transmits the generated operation data transmission request packet via the communication unit 24. Thereafter, the data receiving unit 21a waits for a response from each of the requested host computers 10. Note that the data receiving unit 21a is in a standby state until the time for obtaining operational data arrives (step S21; NO).

On the other hand, the writing unit 11a of the host computer 10 determines whether or not there is data to be written that has reached the writing time in the writing condition table 12b (step S11). If the writing unit 11a determines that there is write target data that has reached the write time (step S11; YES), the write unit 11a writes the write target data to the removable medium RM (step S12). Specifically, the writing unit 11a collects each data collection command when the writing time of log data, software data, configuration data, account data, and dump data, which are data to be written, has come. Transmit first, collect from each data collection destination, and write to the removable media RM.

In step S11, when the writing unit 11a determines that the writing time has not come (step S11; NO), or after the writing unit 11a writes the operation data to the removable medium RM (after step S12), The transmission unit 11b determines whether or not the management server 20 has requested transmission of operation data (step S13).

When the transmission unit 11b determines that the management server 20 does not request transmission of operation data (step S13; NO), the processing of the host computer 10 returns to step S11. That is, until the management server 20 requests transmission of operational data, the writing unit 11a repeats the process of writing the write target data to the removable medium RM according to the writing time set in the writing condition table 12b.

When the transmission unit 11b determines that the management server 20 has requested transmission of operational data (step S13; YES), the transmission unit 11b performs a process of transmitting operational data to the management server 20 (step S14). Here, the timing when the management server 20 requests transmission of operational data is set to the time when dump data is written in the write condition table 12b. In addition, this timing is set to a time when the transmission unit 11b transmits the dump data to the management server 20 in the transmission condition table 12c.

In summary, the writing unit 11a generates dump data based on the operation data stored in the removable medium RM according to the writing conditions set in the writing condition table 12b, and generates the dump data as the removable medium RM. Write to. Further, the transmission unit 11b transmits the dump data written in the removable medium RM to the management server 20 in accordance with the transmission conditions set in the transmission condition table 12c. Specifically, the transmission unit 11 b generates a response packet including this dump data by SNMP, and transmits the generated response packet to the management server 20 via the communication unit 16. Thereafter, the processing of the host computer 10 returns to step S11.

As described above, the host computer 10 repeats Steps S11 to S14 until the power is turned off or is forcibly interrupted according to a user operation.

On the other hand, the data receiving unit 21a of the management server 20 determines whether or not a predetermined time has elapsed since the host computer 10 was requested to transmit operational data (step S23). (Step S23; NO), it is determined whether or not operational data has been received from the requested host computer 10 (step S24).

When it is determined that the data receiving unit 21a has received the operation data from the host computer 10 (step S24; YES), the data update unit 21b specifies the host computer 10 that has transmitted the operation data (step S25). Specifically, the data receiving unit 21a extracts, from the backup table 22b, an entry having device identification information that matches the device identification information (MAC address or the like) of the transmission source included in the response packet transmitted by the host computer 10. Then, the data receiving unit 21a specifies that the host computer 10 indicated by the entry is the host computer 10 that has transmitted the operation data.

The data update unit 21b updates the backup data stored in the backup table 22b with the operation data received from the host computer 10 (step S26).

Thereafter, the data update unit 21b determines whether or not the backup data of all the host computers 10 having the device identification information stored in the backup table 22b has been updated (step S27). When the data update unit 21b determines that there is backup data that has not been updated (step S27; NO), the process of the management server 20 returns to step S23. In other words, the data update unit 21b stores the backup data stored in the backup table 22b until a predetermined time elapses after the data reception unit 21a requests each host computer 10 to transmit operational data. It is updated with operational data transmitted from the host computer 10 of the computer.

If the data receiving unit 21a determines that a certain time has elapsed since the host computer 10 requested the operation data to be transmitted (step S23; YES), the identifying unit 21c does not transmit the operation data. The computer 10 is specified. The data updating unit 21b deletes the device identification information of the host computer 10 specified by the specifying unit 21c from the backup table 22b (step S28). Specifically, as shown in FIG. 7, the host computer 10 c removed from the network N due to a failure or the like cannot transmit operation data requested from the management server 20. In this case, the device identification information ID_c that is the device identification information of the host computer 10c is deleted from the backup table 22b. The backup data 3 of the host computer 10c indicated by the device identification information ID_c deleted from the backup table 22b is held in the backup table 22b. Thereafter, the process of the management server 20 returns to step S21.

As described above, the management server 20 repeats steps S21 to S28 until the power is turned off or until the management server 20 is forcibly interrupted according to the operation of the administrator of the management server 20.

Next, the flow of recovery processing in the communication control system 1 will be described with reference to FIG. Here, as shown in FIG. 7, the host computer 10e newly added in the communication control system 1 receives the backup data 3 of the host computer 10c removed from the communication control system 1 from the management server 20, and restores the backup data. An example of performing is described.

The receiving unit 11c of the host computer 10e newly added to the communication control system 1 determines whether or not the host computer 10e is connected to the network N (step S31). The receiving unit 11c is in a standby state until it is determined that the host computer 10e is connected to the network N (step S31; NO), and when it is determined that the host computer 10e is connected to the network N (step S31; YES). The transmitting unit 11b notifies the management server 20 of its own device identification information ID_e (step S32). Specifically, the host computer 10e illustrated in FIG. 7 generates a device notification packet including its own “device identification information ID_e”, and transmits the generated device notification packet to the management server 20 via the communication unit 16. .

On the other hand, the data update unit 21b of the management server 20 determines whether or not the host computer 10 has notified the device identification information (step S41), and keeps monitoring until the host computer 10 determines that the device identification information has been notified. (Step S41; NO).

When determining that the host computer 10 has notified the device identification information (step S41; YES), the data updating unit 21b determines whether the notified device identification information is stored in the backup table 22b (step S42). . If the data update unit 21b determines that the notified device identification information is not stored in the backup table 22b (step S42; NO), the data update unit 21b adds the notified device identification information to the backup table 22b. (Step S43). Specifically, when the host computer 10e notifies the management server 20 of “device identification information ID_e”, since the backup device 22b illustrated in FIG. 6A does not have “device identification information ID_e”, the data update unit 21b “Device identification information ID_e” is added to the backup table 22b. On the other hand, when the data updating unit 21b determines that the notified device identification information is already stored in the backup table 22b (step S42; YES), the process of the management server 20 returns to step S41.

The data updating unit 21b determines whether there is device identification information deleted from the backup table 22b (step S44). Specifically, as described above, “device identification information ID_c” of the host computer 10c shown in FIG. 7 has been deleted from the backup table 22b. In this case, the data updating unit 21b determines that there is device identification information deleted from the backup table 22b (step S44; YES), and deletes device identification information (here, “device identification information ID_c”) from the backup table 22b. The host computer 10 having the device identification information (here, “device identification information ID_e”) newly added to the backup table 22b is stored in the backup data (here “backup data 3”) of the host computer 10 having the Is stored in the backup table 22b (step S45).

On the other hand, when the data updating unit 21b determines that there is no device identification information deleted from the backup table 22b (step S44; NO), the process of the management server 20 returns to step S41. That is, in this case, the device identification information (“device identification information ID_e”) of the host computer 10 newly connected to the network N is only added to the backup table 22b, and the backup data is restored in the host computer 10e. I will not.

The data providing unit 21d provides the backup data stored in the backup table 22b by the data updating unit 21b in step S45 to the host computer 10 newly connected to the network N (step S46). Specifically, a provided packet including “device identification information ID_e” as a transmission destination and including “backup data 3” which is backup data of the host computer 10 c is generated, and the generated provided packet is hosted via the communication unit 24. Provided to the computer 10e. Note that the backup data included in the provided packet may be obtained by extracting only data necessary for recovery. For example, only software data, configuration data, and account data may be extracted from “backup data 3” of the host computer 10c, and backup data that does not include log data or dump data may be included in the provided packet.

In addition, the data storage unit 21e stores the backup data generated by the data providing unit 21d in step S46 in the removable medium RM connected to the reading / writing unit 23 (step S47). The data storage unit 21e may perform this process automatically, or may be performed in accordance with the operation of the user who uses the host computer 10 newly connected to the network N or the operation of the administrator of the management server 20. good. The process of the management server 20 returns to step S41 after the process of step S47.

Further, the data storage unit 21e adds the device identification information of the host computer 10 to be restored to the backup data, so that the host computer 10 that does not have the device identification information stores the backup data stored in the removable medium RM. It may be limited so that it cannot be read. For example, the data storage unit 21e adds the device identification information of the host computer 10e and the host computer 10c shown in FIG. 7 to the backup data. Thus, only the host computer 10e and the host computer 10c can read the backup data stored in the removable medium RM. The host computer 10a, the host computer 10b, and the host computer 10d can read the backup data stored in the removable medium RM. Cannot be read. Thereby, the communication control system 1 can prevent unauthorized use of backup data.

Further, the data storage unit 21e adds a restore flag to the backup data to automatically restore the backup data when the removable medium RM is mounted on the host computer 10, and sets the restore flag to a true state. The backup data is stored in the removable medium RM. Thus, when the removable medium RM is connected in the host computer 10, the backup data stored in the removable medium RM is automatically restored in the host computer 10 without requiring any user operation. The removable media RM storing the backup data is delivered by the administrator of the management server 20 to the user of the host computer 10e or the host computer 10c.

As described above, the management server 20 repeats the recovery processing in steps S41 to S47 until the power is turned off or until the management server 20 is forcibly interrupted according to the operation of the administrator of the management server 20.

On the other hand, the receiving unit 11c of the host computer 10 (here, the host computer 10e) notifies the management server 20 of its own device identification information in step S32, and determines whether or not backup data has been received from the management server 20 (step S32). Step S33). When determining that the backup data has not been received from the management server 20 (step S33; NO), the receiving unit 11c determines whether the removable medium RM is connected to the reading / writing unit 13 (step S34). If the receiving unit 11c determines that the removable medium RM is not connected to the reading / writing unit 13 (step S34; NO), the receiving unit 11c returns to step S33. That is, the receiving unit 11 c of the host computer 10 receives backup data from the management server 20 via the network N, or the removable medium RM passed by the administrator of the management server 20 connects to the reading / writing unit 13. Until the monitoring state.

When it is determined that the receiving unit 11c has received backup data from the management server 20 via the communication unit 16 (step S33; YES), the recovery unit 11d automatically recovers the backup data received from the management server 20 (step S33). S36).

If the receiving unit 11c determines that the removable medium RM is connected to the reading / writing unit 13c (step S34; YES), the receiving unit 11c reads the backup data from the removable medium RM and adds a restore flag to the backup data. It is determined whether or not the state is (step S35). At this time, the receiving unit 11c also determines whether or not its own device identification information is added to the backup data.

When the receiving unit 11c adds the backup data restore flag and determines that the data is true (step S35; YES), the restoration unit 11d automatically restores the backup data (step S36). Note that the recovery unit 11d does not need to perform this process if the backup data received via the communication unit 16 has already been recovered. Further, the recovery unit 11d does not recover the backup data when it is determined that its own device identification information is not added to the backup data or when the restore flag is determined to be false. In this case, the process returns to step S33.

As described above, the host computer 10 newly connected to the network N restores the backup data stored in the management server 20. Thereafter, the host computer 10 performs the backup process shown in FIG. 8 and writes the operation data to the connected removable media RM.

According to the communication control system 1 described above, in addition to the management server 20 connected to the host computer 10 via the network N, the data stored in the host computer 10 can be backed up by the removable medium RM directly connected to the host computer 10. Can be taken. Therefore, the communication control system 1 can reliably back up data using the removable medium RM even when an abnormality occurs in communication performed between the management server 20 and the host computer 10.

Further, the data stored in the host computer 10 can be automatically backed up to the management server 20 and the removable media RM, respectively, according to predetermined write conditions and transmission conditions. As described above, the write condition and the transmission condition may be set in the write condition table 12b and the transmission condition table 12c, or a program stored in the storage unit 12 or a timer interrupt from a timer provided in the control unit 11 May be set to periodically write and transmit. Thereby, the user can manage backup data efficiently, without requiring complicated operation.

In addition, the host computer 10 does not have to perform processing for collecting data from the storage unit 12 by generating transmission target data from data stored in the removable medium RM. Thereby, the processing load of the host computer 10 when data is transmitted to the management server 20 is reduced, and the transmission target data can be efficiently transmitted to the management server 20. The host computer 10 may collect data to be backed up from the storage unit 12 in accordance with the transmission conditions set in the transmission condition table 12c, and transmit the collected data to the management server 20.

In addition, the host computer 10 transfers the data stored in the storage unit 12 or the removable media RM at a timing other than when a request is received from the management server 20 according to the transmission conditions set in the transmission condition table 12c. You may send to.

The timing at which the management server 20 writes the backup data to the removable medium RM may be set so as to be periodically written and transmitted by a program stored in the storage unit 22 or a timer interrupt from a timer provided in the control unit 21. good.

In addition, when there are a plurality of host computers 10 newly connected to the network N and host computers 10 removed from the network N, the management server 20 stores backup data of the host computers 10 removed from the network N. You may memorize | store in one removable media RM.

Specifically, in this case, for each host computer 10 newly connected to the network N, the data storage unit 21e of the management server 20 associates the device identification information, backup data, and password of the host computer 10 with each other, Store in one removable medium RM. Each host computer 10 newly connected to the network N recovers the backup data only when the password stored in the removable medium RM matches the password (predetermined character string) entered by the user. As a result, when backup data is recovered by a plurality of host computers 10 using a single removable medium RM, it is possible to prevent mistaken backup data to be recovered.

In addition, the data storage unit 21e of the management server 20 associates each of the plurality of backup data with the respective device identification information of the host computer 10 to be restored, and encrypts the backup data using a unique encryption key for each device identification information. Alternatively, it may be stored in one removable medium RM. In this case, in the host computer 10 connected to the removable medium RM, the backup data associated with the same device identification information as the own device identification information is decrypted with the own encryption key, and the storage unit 12 of the host computer 10 is decrypted. To recover. For this reason, it is possible to prevent mistaken backup data to be restored.

Note that only one removable medium RM used in the communication control system 1 may be prepared, or a number corresponding to the number of host computers 10 that restore backup data may be prepared. Further, a plurality of removable media RMs may be prepared according to the capacity thereof, and the write target data may be divided into a plurality of removable media RMs for backup.

In addition, the data stored in the host computer 10 removed from the network N is stored in the removable medium RM, and the backup data is restored by connecting the removable medium RM to the host computer 10 newly connected to the network N. Also good.

In addition, when the host computer 10 becomes unusable due to a failure or the like, the data from when the host computer 10 was last sent to the management server 20 until the host computer 10 becomes unusable is managed. The server 20 cannot make a backup. Therefore, even if the backup data stored in the management server 20 is complemented by storing the data stored in the host computer 10 that can no longer be used in the removable media RM and providing the removable media RM to the management server 20. good.

In addition, before providing backup data to the host computer 10, the management server 20 inquires whether or not to provide backup data to the host computer 10 that is the destination, and in accordance with a response from the host computer 10 that is the destination, the backup data May be provided.

Note that the numbers of the host computer 10 and the management server 20 provided in the communication control system 1 are not limited respectively. Therefore, the communication control system 1 may include a plurality of management servers 20 and may back up data stored in the host computer 10 by the plurality of management servers 20.

The backup target may be log data, software data, configuration data, account data, dump data and other operational data, as well as various file data such as document data, spreadsheet data, and image data.

Note that the programs for realizing the functions of the host computer 10 and the management server 20 described in the above embodiment may be provided so that a CPU for controlling an existing personal computer, information terminal device, or the like can be executed. . A method for providing such a program is arbitrary. For example, a program stored in a computer-readable storage medium such as a flexible disk, CD-ROM, DVD-ROM, or memory card may be provided. The program may be provided via a communication medium such as the Internet. For example, the program may be posted on a bulletin board (BBS: Bulletin Board System) on a communication network and distributed. Further, like the other application programs, the above processing may be executed by executing this program under the control of the OS.

Some or all of the above embodiments may be described as in the following supplementary notes, but are not limited to the following.

(Appendix 1)
An information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
Each of the client devices
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
The server device
First receiving means for receiving the backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among backup data stored in the storage means to an attached removable storage medium;
An information processing system characterized by this.

(Appendix 2)
The first transmission means of each of the client devices reads backup data stored in the attached removable storage medium and transmits the backup data to the server device;
The information processing system according to attachment 1, wherein

(Appendix 3)
The storage means of the server device stores a backup table that stores device identification information of each client device and backup data of each client device in association with each other,
The server device requests a response from each client device having the device identification information stored in the backup table, and determines a client device that is not connected to the network according to the presence / absence of a response from each client device requested. Further comprising a specifying means for specifying,
The storage unit of the server device deletes the device identification information of the client device that has been specified that the specifying unit is not connected to the network from the backup table,
The information processing system according to

appendix

1 or 2, characterized in that:

(Appendix 4)
The storage unit of the server device has the device identification information deleted from the backup table when the device identification information is notified from a client device having device identification information not stored in the backup table Corresponding device backup data with newly notified device identification information,
The information processing system according to supplementary note 3, wherein

(Appendix 5)
The server device
A second transmission means for transmitting the backup data associated with the newly notified device identification information to the client device having the newly notified device identification information via the network;
Each of the client devices
Second receiving means for receiving the backup data transmitted by the second transmitting means;
Means for restoring the backup data received by the second receiving means to its own storage means,
The information processing system according to supplementary note 4, wherein

(Appendix 6)
The second writing means of the server device writes the backup data associated with the newly notified device identification information to a removable storage medium attached to the server device,
Each of the client devices
Comprising a means for restoring backup data stored in a removable storage medium attached to the apparatus to its own storage means;
The information processing system according to supplementary note 4, wherein

(Appendix 7)
The second writing means of the server device writes a plurality of the backup data corresponding to a plurality of the device identification information to the removable storage medium,
Each of the client devices
Means for restoring backup data associated with the same device identification information as its own device identification information from among a plurality of backup data stored in a removable storage medium attached to the device to its own storage means Comprising
The information processing system according to supplementary note 4, wherein

(Appendix 8)
The second writing means of the server device encrypts the plurality of backup data using a unique encryption key for each piece of device identification information and writes the encrypted backup data to the removable storage medium,
The restoring means of each of the client devices is a backup associated with the same device identification information as its own device identification information from among a plurality of backup data stored in a removable storage medium attached to the client device. Decrypt the data with your encryption key and restore it to your storage
The information processing system according to supplementary note 7, wherein

(Appendix 9)
A client device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
A client device comprising:

(Appendix 10)
A server device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
First receiving means for receiving backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among backup data stored in the storage means to an attached removable storage medium;
A server device comprising:

(Appendix 11)
A client device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
A computer-readable recording medium storing a program that functions as a computer.

(Appendix 12)
A server device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
First receiving means for receiving backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among the backup data stored in the storage means to the attached removable storage medium;
A computer-readable recording medium storing a program that functions as a computer.

The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. In other words, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

The present invention is based on Japanese Patent Application No. 2013-0773802 filed on March 29, 2013. The specification, claims, and entire drawings of Japanese Patent Application No. 2013-073802 are incorporated herein by reference.

DESCRIPTION OF SYMBOLS 1

Communication control system

10,10a, 10b, 10c, 10d, 10e Host computer 11 Control part 11a Writing part 11b Transmission part 11c Receiving part 11d Recovery part 12 Storage part 12a Control program 12b Write condition table 12c Transmission condition table 13 Reading / writing Insertion unit 14 Operation unit 15 Display unit 16 Communication unit 20 Management server 21 Control unit 21a Data reception unit 21b Data update unit 21c Identification unit 21d Data provision unit 21e Data storage unit 22 Storage unit 22a Control program 22b Backup table 23 Read / write Part 24 communication part N network RM removable media

Claims

An information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
Each of the client devices
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
The server device
First receiving means for receiving the backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among backup data stored in the storage means to an attached removable storage medium;
An information processing system characterized by this.
The first transmission means of each of the client devices reads backup data stored in the attached removable storage medium and transmits the backup data to the server device;
The information processing system according to claim 1.
The storage means of the server device stores a backup table that stores device identification information of each client device and backup data of each client device in association with each other,
The server device requests a response from each client device having the device identification information stored in the backup table, and determines a client device that is not connected to the network according to the presence / absence of a response from each client device requested. Further comprising a specifying means for specifying,
The storage unit of the server device deletes the device identification information of the client device that has been specified that the specifying unit is not connected to the network from the backup table,
The information processing system according to claim 1 or 2.
The storage unit of the server device has the device identification information deleted from the backup table when the device identification information is notified from a client device having device identification information not stored in the backup table Corresponding device backup data with newly notified device identification information,
The information processing system according to claim 3.
The server device
A second transmission means for transmitting the backup data associated with the newly notified device identification information to the client device having the newly notified device identification information via the network;
Each of the client devices
Second receiving means for receiving the backup data transmitted by the second transmitting means;
Means for restoring the backup data received by the second receiving means to its own storage means,
The information processing system according to claim 4.
The second writing means of the server device writes the backup data associated with the newly notified device identification information to a removable storage medium attached to the server device,
Each of the client devices
Comprising a means for restoring backup data stored in a removable storage medium attached to the apparatus to its own storage means;
The information processing system according to claim 4.
A client device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
A client device comprising:
A server device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
First receiving means for receiving backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among backup data stored in the storage means to an attached removable storage medium;
A server device comprising:
A client device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
A write condition setting unit for setting the timing for writing backup data to the removable storage medium for each type of backup data, and a transmission condition setting for setting the timing for transmitting the backup data to the server device for each type of backup data A setting unit comprising:
First writing means for writing the backup data to the removable storage medium at a timing set by the writing condition setting unit;
First transmission means for transmitting the backup data to the server device at a timing set by the transmission condition setting unit;
A computer-readable recording medium storing a program that functions as a computer.
A server device for an information processing system comprising a plurality of client devices and a server device connected to each of the client devices via a network,
First receiving means for receiving backup data transmitted from each of the client devices;
Storage means for storing the backup data received by the first receiving means in association with device identification information of a client device that is a transmission source of the backup data;
Second writing means for writing backup data of a specific client device among the backup data stored in the storage means to the attached removable storage medium;
A computer-readable recording medium storing a program that functions as a computer.