JP2002073394A - Data transfer system with remote recovery function - Google Patents

Abstract

(57) [Summary] [Problem] To transfer data after updating on a transfer destination system,
Make it easy to restore data from any past update. In a transfer destination system, a processing mechanism for updating registered data with update data transferred from a transfer source system, and a data storage unit for re-registering the updated registered data. A backup 140 that stores only the transferred update data, an attribute information storage unit 30 that stores attribute information of the stored update data,
When any attribute information is designated, the update processing unit 42 reads update data specified by the attribute information from the backup 140 and replaces a corresponding part of the registered data in the data storage unit 120 with the update data. The system 1 includes a restoration instruction mechanism 41 for reading attribute information from the storage unit 130 and instructing the restoration processing mechanism 42 of restoration target attribute information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transfer system with a remote recovery function, and more particularly to a data transfer system in a complex computer system comprising a source system and an optional destination system connected via a communication network. The present invention relates to a data transfer system with a remote recovery function suitable for being applied to a computer.

[0002]

2. Description of the Related Art As a data transfer system comprising a transfer source system and an arbitrary transfer destination system connected via a communication network, an electronic computer provided by an arbitrary client such as a company that publishes a home page on the Internet is known. May be used as a transfer destination system, and a computer provided in a server of a company or the like that provides a service for performing homepage creation work for the transfer destination system may be used as a transfer source system.

[0003] A server that performs such a homepage creation business creates data to be updated or newly added (hereinafter, both are simply referred to as updates) each time a client requests, and then the client site The data is transferred to the homepage (registered data) and the corresponding page is updated.

In a data transfer system for transferring update data to an arbitrary client site, performing update processing on registered data and re-registering the data on the site, the data transfer system is not limited to such a homepage creation agency system. When the page to be updated is mistaken, a request may be made to restore the registered data to a state at the time of an arbitrary update in the past.

[0005]

However, in a conventional data transfer system of this type, the restoration of the registered data on the transfer destination system, which has been updated once, to the past update state is performed by the transfer source system from the transfer source system. There is a drawback that the network traffic load is increased because the operation depends on a manual operation performed after logging on, or a file (group) having contents necessary for recovery must be re-transferred from a transfer source.

In the case of the former, manual work is troublesome and human error is more likely to occur. In addition, since a plurality of human operations are usually performed in a plurality, the transfer destination is often used. Since it is necessary to register the IDs of a plurality of workers in the system in advance, the possibility of intrusion by a third party by the number of workers increases, and the problem on network security also increases. In addition, there is also a problem that network traffic at the time of restoration processing when the restoration file (group) is transferred from the latter transfer source wastes hardware and software resources.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and does not require manual operation after logging on to a transfer destination system, and without re-transfer of a file (group) for recovery. It is another object of the present invention to provide a data transfer system with a remote recovery function capable of easily restoring registered data updated on the transfer destination system to a state at the time of an arbitrary update in the past.

[0008]

According to the present invention, there is provided a transfer source system having a transfer means for transferring data via a communication network, and an arbitrary transfer system having a reception means for receiving data transferred via the network. In a data transfer system including a destination system, the transfer destination system includes an update unit that updates registered data with update data transferred from the transfer source system, and a transfer that reregisters the updated registered data. Destination data storage means;
Update difference storage means for storing only the transferred update data, attribute information storage means for storing attribute information associated with the stored update data, when any stored attribute information is indicated, Reading update data specified by the attribute information from the update difference storage means;
Restoring means for replacing a corresponding part of the registered data stored in the transfer destination data storage means with the update data, and the transfer source system includes any stored data from the attribute information storage means. Read attribute information,
The above-mentioned problem has been solved by providing a configuration in which a restoration instruction unit is provided for instructing the restoration unit of attribute information associated with update data to be restored contained therein.

That is, according to the present invention, in a complex system comprising two or more information processing systems of a transfer source and a transfer destination connected by a network, a predetermined update data is transferred from the transfer source system to an arbitrary transfer destination system. When a file (group) is transferred, the attribute information of the file updated (including newly added) in the transfer destination system is retained, and update data for each transfer corresponding to an update difference is stored for a predetermined generation for backup. However, when it is necessary to restore the update state of an arbitrary generation, the worker refers to the attribute information accumulated in the past transfer in the transfer source system, and selects an arbitrary generation from the transfer source. By instructing the update data for backup, the registration of the file group stored in the transfer destination data storage means on the transfer destination system is performed. The already data was to be able to remote automatic recovery.

As described above, the update data transfer operation and the instruction to restore the file group (registered data) on the transfer destination system to the update state at an arbitrary point in time are remotely performed, so that the update data file transfer is performed. Since the operation can be centralized in the transfer source system, the efficiency of file transfer work can be improved, and the registered data can be restored to any past update state without the operator logging on to the transfer destination system. Since the security of the system can be ensured, and the past update data used for recovery exists in the transfer destination system itself to be recovered, there is no network traffic associated with the recovery processing, so that resources are not wasted. Files can be quickly restored.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an outline of a data transfer system with a remote recovery function according to an embodiment of the present invention.

This data transfer system has a transfer source transfer mechanism (transfer means) 31 for transferring data stored in a transfer source data storage unit 110 via the Internet (communication network) NW.
(A transfer source system) and a transfer destination system 2 (a transfer destination system) having a transfer destination transfer processing mechanism (reception means) 32 for receiving data transferred via the Internet NW.

The transfer destination system 2 includes update means included in the transfer processing mechanism 32 for updating registered data comprising a file group with update data transferred from the transfer source system 1. A transfer destination data storage unit 120 for re-registering the updated registered data,
File update differential backup (update difference storage means) 140 for storing only the update data received by the transfer processing mechanism 32, and file attribute information for storing attribute information associated with the update data stored in the backup 140 A storage unit (attribute information storage unit) 130;
When the attribute information of an arbitrary generation (at the time of past update) stored in the storage unit 130 is designated, the update data specified by the attribute information is copied to the update differential backup 140.
And a destination recovery processing mechanism (recovery means) 42 for replacing the corresponding part of the registered data stored in the destination data storage unit 120 with the updated data.

The transfer destination transfer processing mechanism 32 stores the received update data in the update differential backup 140 and stores the attribute information in the attribute information storage unit 130 together with the function as the update means. It also has functions such as oring. The attribute information storage unit 1
Each attribute information stored in 30 includes the update time of the corresponding update data and its data size.

On the other hand, the transfer source system 1 reads out any attribute information already stored from the attribute information storage unit 130 and stores the attribute information associated with the update data to be restored contained therein. Source restoration instructing mechanism (recovery instructing means) 4 for instructing the restoration processing mechanism 42
1 is provided.

Next, the operation of the present embodiment will be described by taking a case where the registered data is a homepage as an example.

In the transfer of ordinary update data, update data for updating (including newly adding) a home page published in the system 2 and created in advance and stored in the transfer source storage unit 110 is used. When the transfer data is transferred via the Internet NW by the transfer source transfer processing mechanism 31 of the system 1, the update data is received by the transfer destination transfer processing mechanism 32 of the system 2. Upon receiving the update data, the transfer destination transfer processing mechanism 32 replaces the file of the corresponding part of the homepage data registered in the transfer destination data storage unit 120 with the update data file, and And the information (attribute information) of the newly registered update data file is stored in the file attribute information storage unit 130, and the file update of the registered data in the transfer destination data storage unit 120 before and after the current update is also performed. Only the file of the update data corresponding to the difference is stored in the update difference backup 140 in association with the attribute information.

Each time the update data is transferred and updated as described above, the attribute information on the update data and the file of the update data itself are stored in the file attribute information storage unit 1.
30 and the file update difference backup 140 are stored in the transfer destination system 2 for updating data as generation-specific information in chronological order. FIG. 2 shows an example of attribute information for several generations stored in the file attribute information storage unit 130. FIG. 3 shows each update stored in the update differential backup 140 specified by the attribute information. An image of the data is shown.

In the present embodiment, when it is necessary to restore the contents (registered data) of the homepage registered in the transfer destination data storage unit 120 on the system 2 to an arbitrary past state, the operator The transfer source recovery instruction mechanism 41 of the system 1 obtains the attribute information stored therein from the file attribute information storage unit 130 in the system 2 and obtains a list of recoverable backup generations from the contents thereof. At the same time, the generation to be recovered included therein is selected, and the instruction mechanism 41 instructs the transfer destination recovery processing mechanism 42 of the system 2 to perform recovery processing to the target generation.

Upon receiving the recovery instruction, the transfer destination recovery processing mechanism 42 reads out the update data stored there from the update difference backup 140 in the newest order until the specified generation is reached, and stores the transfer destination data storage. The registered data registered in the unit 120 is sequentially written back.

The image of the homepage restoration process is as follows:
FIG. 4 shows a case in which the current home page is restored to the home page three generations ago according to the attribute information and contents up to the third generation of backup shown in FIGS. 2 and 3, respectively.

As shown in this figure, when restoring the current home page to the state of three generations ago, one to three generations ago
The restoration process for each generation shown by restoration processes 1 to 3 in the drawing is sequentially repeated three times to return to the state before the generation. The location of the backup (update data) of each generation is given from the attribute information of the corresponding generation, and a list of files newly registered in the generation, that is, files to be deleted at the time of restoration is similarly given.

On the basis of these pieces of attribute information, in the recovery processing at each stage, write-back by the backup of the corresponding generation,
A file newly registered in the generation is deleted.
The figure shows up to the third generation.
The restoration to the previous generation is realized by sequentially performing restoration (original) processing 1 to n for the first to nth generations.

In this way, the registered data in the system 2 can be restored to the target generation update state by remote control from the system 1.

According to the present embodiment described above, the attribute information associated with the update data transferred in the past, which is necessary for data recovery on the transfer destination system 1, and the update data itself specified by the attribute information Is stored for backup purposes by the transfer destination transfer processing mechanism 32, and only the attribute information is referred to by the transfer source restoration instruction mechanism 41 of the transfer source system 1, an arbitrary backup generation is selected, and the generation is updated. By instructing restoration to the state, the restoration processing mechanism 42 can perform data restoration processing in the transfer destination system 2.

Accordingly, the update is performed on the system 2 without manually logging on from the system 1 of the transfer source to the system 2 of the transfer destination and without re-transferring the file (s) for recovery. Later registered data can be easily restored to data at the time of any past update.

Although the present invention has been specifically described above, the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist thereof.

For example, in the above embodiment, one example of the transfer destination system 2 has been described, but it goes without saying that two or more transfer destination systems may be used.

As a specific example of the data transfer system, a homepage creation agency system has been described. However, the present invention is not limited to this. It can be applied to the whole system.

[0031]

As described above, according to the present invention, the logon from the transfer source system to the transfer destination system does not need to be performed manually, and the recovery file (group) is not transferred again. The data updated on the transfer destination system can be easily and quickly restored to the data at the time of any update in the past.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an outline of a data transfer system with a remote recovery function according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of attribute information.

FIG. 3 is an explanatory diagram showing an image of update data specified by attribute information;

FIG. 4 is an explanatory diagram showing the operation of the embodiment.

[Explanation of symbols]

 Reference Signs List 31 transfer source transfer mechanism 32 transfer destination transfer processing mechanism 41 transfer source restoration instructing mechanism 42 transfer destination restoration processing mechanism 110 transfer source data storage unit 120 transfer destination data storage unit 130 file attribute information storage unit 140 … File update difference backup

Claims (3)

[Claims] 1. A data transfer system comprising: a transfer source system having transfer means for transferring data via a communication network; and an arbitrary transfer destination system having reception means for receiving data transferred via the network. In the transfer destination system, according to update data transferred from the transfer source system,
Update means for updating registered data; transfer destination data storage means for re-registering updated registered data; update difference storage means for storing only the transferred update data; and association with the stored update data Attribute information storage means for storing the stored attribute information, and when any stored attribute information is designated, update data specified by the attribute information is read from the update difference storage means, and the transfer destination data Restoring means for replacing a corresponding part of the registered data stored in the storage means with the update data; the transfer source system reads arbitrary stored attribute information from the attribute information storage means It is characterized in that there is provided a recovery instruction means for instructing the recovery means on attribute information associated with the update data to be recovered contained therein. Remote recovery capabilities with a data transfer system that. 2. The data transfer system with a remote recovery function according to claim 1, wherein the attribute information includes an update time of the update data and a data size thereof. 3. The data transfer system with a remote recovery function according to claim 1, wherein said communication network is the Internet.