JPH06259300A - Data backup device - Google Patents

Abstract

PURPOSE:To provide the data backup device which can improve the response of a system by shortening data backup time and reducing the load on the system such as a CPU or network. CONSTITUTION:A user utilizing a charging system during a certain specified period of time is selected from operation summation data 1 by a user name selecting part 2, a user name list 3 is prepared from the user obtained by the selection and further, only the user data of the user listed on the user name list 3 are backed up from all the user data 4 by a data backup part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data backup device that protects data from, for example, a hard disk failure or a deletion operation caused by a user's mistake.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram functionally showing a conventional data backup apparatus. In the figure, 63 is a user name list of users selected by a user name selection unit 68 described later, and 64 is all users. All user data of
Reference numeral 65 is a data backup unit that backs up user data that is listed in the user name list 63 from all user data 64, and 66 is a file name that selects the file name of a file that has been modified in a certain period from all user data 64. The selection unit 67 is a file name list selected by the file name selection unit 66, and 68 is a user name selection unit that selects the user of the file from the file name list 67.

Next, the operation will be described. FIG. 7 is a flow chart for explaining the data backup operation by the conventional data backup device. In the data backup device shown in FIG. 6, first, the file name selection unit 66 checks, for each file, whether or not there is a file in the entire user data 64 that has been modified during a certain period.
The file name of the modified file is stored in the file name list 7 (step ST71).
Next, the user name selection unit 68 causes the file name list 67.
The user of the file stored in is selected and stored in the user name list 63 (step ST72). Then, the data backup unit 65 backs up only the user data stored in the user name list 63 from all the user data 64 (step ST73).

[0004]

Since the conventional data backup device is configured as described above, it is necessary to check the modification dates of all files one by one in order to select the file name. There was a problem that the larger the scale, the longer the processing time.

Further, in a system such as a CPU or a network, it takes a great load to take a great deal of processing time to select a file name, and it becomes difficult for other users who share the same resource to access, and the response of the system deteriorates. There was a problem that there was an adverse effect such as

The invention of claim 1 is to solve the above problems, and shortens the data backup time and the load on the system such as the CPU and the network to improve the response of the system. The object is to obtain a data backup device that can be used.

It is an object of the present invention to provide a data backup device capable of automating the data backup and reducing the labor of the operator.

[0008]

A data backup device according to the invention of claim 1 is provided with a structure for backing up user data of a user who has used a certain system for a specific period among registered user data. It is a thing.

The data backup apparatus according to the second aspect of the present invention is provided with a structure for automatically backing up user data when a predetermined time has elapsed.

[0010]

The data backup device according to the invention of claim 1 is provided with a configuration for backing up user data of a user who has used a certain system for a specific period among registered user data. The function to check each modified file one by one is unnecessary.

Since the data backup apparatus according to the second aspect of the present invention has a configuration for automatically backing up user data after a predetermined time has elapsed, it is not necessary to set the data backup once.

[0012]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a data backup device according to an embodiment of the present invention. In FIG. 1, 10 is a CPU (selecting means, backup means) for controlling the operation of the entire data backup device according to the first embodiment. ), 11 is a ROM storing various programs for the CPU 10 to operate, 12 is a RAM (storage means) used as a work area for the CPU 10 to operate, 13
Is an operation unit provided with keys and switches for operating data backup instructions, data processing, and communication processing, 14 is a display unit for displaying operation status and data, and 15 is an interface with a drive such as a hard disk or a floppy disk. Is a disk I / F and drive, 16 is a communication I / F which is an interface connected to a network system, 17 is a floppy disk (storage means, backup means), and 18 is a hard disk (registration means, storage means).

FIG. 2 is a block diagram functionally showing the data backup device according to the first embodiment. In FIG.
Is an operation total data used for a charging system such as an accounting calculation, 2 is a user name selection unit for selecting a user who has used the above-mentioned charging system in a specific period from the operation total data,
3 is a user name list selected by the user name selection unit 2, 4 is all user data composed of specific users who can operate the charging system, 5 is a user name stored in the user name list 3 from all user data 4. Is a data backup unit that backs up the. In the relationship between the functional blocks shown in FIG. 2 and the blocks shown in FIG. 1, the operation total data 1 is stored in the RAM 12, the floppy disk 17, or the hard disk 18. The hard disk 18 is used as the registration location for all the user data 4. The operations of the user name selection unit 2 and the data backup unit 5 are
The floppy disk 17 is used as a storage location for the data that the CPU 10 is responsible for backing up. The user name selection unit 2 and the user name list 3 are stored in the RAM 12.

Next, the operation will be described. FIG. 3 is a flow chart for explaining the data backup operation by the data backup device of the first embodiment. In the data backup device shown in FIG. 3, the user name selection unit 2 first selects the users who have used the charging system for a certain period from the operation total data 1 (step ST31), and selects the users from the users obtained by this selection. A name list 3 is created (step ST32). Then, the data backup unit 5 backs up only the user data of the users who are listed in the user name list 3 from all the user data 4 (step ST33). The user data thus backed up is stored in the floppy disk 17.

Therefore, it is possible to improve the response of the system by shortening the data backup time and reducing the load on the system such as the CPU and the network.

Example 2. FIG. 4 is a block diagram showing a configuration of a main part of a data backup device according to an embodiment of the invention of claim 2. In the figure, 19 is a measuring unit (measuring means) having a time measuring device such as a timer. . The second embodiment has the same configuration as that of FIG. 1 except for the configuration shown in FIG. 4, and thus the description thereof will be omitted.

Next, the operation will be described. FIG. 5 is a flow chart for explaining the data backup operation by the data backup device of the second embodiment. In the data backup device shown in FIG. 4, when the measuring unit 19 measures a predetermined time, it outputs an interrupt signal to the CPU 1 (step ST51), and the CPU 1 starts data backup according to the input of this interrupt signal (step ST51). Steps ST52 to ST54). In this data backup, the same processing as the processing described in FIG. 3 is performed.
When the data backup ends, the process returns to step ST51 again, and the measuring unit 19 measures a predetermined time. It goes without saying that either time or hardware may be used for time measurement.

Example 3. In the second embodiment described above, the data backup is performed every time a predetermined time elapses, but the time may be specified from the operation unit 13 and the data backup may be performed when the specified time is reached. Good. In this way, the data backup device can be operated at the same time even when other work is underway.

Further, in the above-described second and third embodiments, data backup may be executed by remote control via the communication I / F 16. In this way, the data backup device can be operated from any place.

[0020]

As described above, according to the first aspect of the present invention, the user data of the user who used a certain system for a specific period among the registered user data is configured to be backed up. There is no need to check each file that has been modified during a specific period. Therefore, shortening of data backup time and CP
It is possible to reduce the load on the system such as the U and the network and improve the response of the system.

According to the second aspect of the present invention, the user data is automatically backed up after a predetermined time elapses. Therefore, it is not necessary to set the data backup every time, and as a result, the data backup is performed. There is an effect that the operation can be automated and the labor of the operator can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a data backup device according to an embodiment of the present invention.

FIG. 2 is a block diagram functionally showing the data backup device according to the first embodiment.

FIG. 3 is a flowchart illustrating a data backup operation performed by the data backup device according to the first exemplary embodiment.

FIG. 4 is a block diagram showing a configuration of a main part of a data backup device according to an embodiment of the invention of claim 2;

FIG. 5 is a flowchart illustrating a data backup operation by the data backup device according to the second embodiment.

FIG. 6 is a block diagram functionally showing a conventional data backup device.

FIG. 7 is a flowchart illustrating a data backup operation by a conventional data backup device.

[Explanation of symbols]

10 CPU (selection means, backup means) 12 RAM (storage means) 17 Floppy disk (storage means, backup means) 18 Hard disk (storage means, registration means) 19 Measuring unit (measurement means)

Claims (2)

[Claims] 1. A registration means for registering user data, a storage means for storing a usage status of a system by a user, and a selection means for selecting a user who has used a specific period according to the usage status stored in the storage means. And a creating means for creating a list of users selected by the selecting means, and a backup means for backing up user data of users on the list created by the creating means from the user data registered in the registering means. And a data backup device equipped with. 2. A measuring means for measuring a predetermined time, a registering means for registering user data, a storage means for storing a usage status of a system by a user, and a predetermined time measured by the measuring means. Selection means for selecting users who have used for a specific period according to the usage status stored in the storage means, creation means for creating a list of users selected by the selection means, and user data registered in the registration means A data backup device for backing up the user data of the user on the list created by the creating means.