JPH10232801A - Data filing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable access to data which is temporarily erased by formatting retrieved data and selecting a CD-R/RW disk as a device for copying or moving them. SOLUTION: A data filtering system program stored on a hard disk (a) is operated simultaneously with a data base program to be operated on a server 3 and clients PC 1 and PC2 connected on a network and has functions for selecting any data as erasure data and formatting these data so as to write them on a CD-R/RW disk. Concretely, a function for temporarily saving data having possibility to be required in furture is provided. Besides, together with the limit information of access to these data and user information selecting these data as the erasure data, the write of data onto the CD-R/RW, the selection of device, the setting of copy and move and the setting of its timing are performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a data filing system having a function of writing / reading information to / from a storage device.

[0002]

2. Description of the Related Art In a conventional data filing system, when a user issues a delete command for certain data, the data cannot be accessed thereafter.

Conventionally, once data has been deleted, it has not been possible to access the data even if it becomes necessary thereafter. In addition, there is a limit to the data that can be stored in the hard disk, and there is a problem in that data that is originally required to secure free space must be deleted. SUMMARY OF THE INVENTION It is a first object of the present invention to provide a data filing system in which even if data is once deleted, the data can be accessed. In addition, data filing that enables the storage device to be used effectively by avoiding occupying the hard disk with less useful data and leaving no room for storing new more useful data on the hard disk. A second problem is to provide a system.

[0003]

According to the first aspect of the present invention, there is provided a data searching means for searching a device storing data for necessary data, a data selecting means for selecting the searched data, Formatting means for formatting the formatted data, device selecting means for selecting a device for copying or moving the formatted data, and data copying / moving means for copying or moving the formatted data to the selected device. In a data filing system, a means for selecting retrieved data as erased data, a means for formatting the data, and a CD-R or CD-RW disc (hereinafter, referred to as a device for copying or moving the data after formatting the data) CD-R / RW disc) It is provided and means for.

According to a second aspect of the present invention, in the data filing system of the first aspect, means for selecting whether to copy or move to a CD-R / RW disc when selecting the searched data as the erased data is provided. I have.

According to a third aspect of the present invention, in the data filing system of the first aspect, there is provided means for selecting the searched data as erased data, setting the timing when copying or moving the data after formatting the data. ing.

According to a fourth aspect of the present invention, in the data filing system of the first aspect, when the searched data is selected as erased data, and the data is formatted or copied or moved, the data is written to the CD-R / RW disc. Means is provided for writing information for limiting the users who can access.

According to a fifth aspect of the present invention, in the data filing system of the first aspect, when the searched data is selected as erasure data and the data is formatted or copied or moved, the user information that selected the erasure data is used. We have a means of holding.

According to a sixth aspect of the present invention, in the data filing system of the first aspect, there is provided means for re-reading data copied or moved to a CD-R / RW disc.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a hardware configuration of a data filing system according to the present invention will be described.

FIG. 1 is a functional block diagram showing an example of an embodiment of a main part configuration of a data filing system of the present invention. In the figure, 1 and 2 are client PCs, 3 is a PC server, 4 is a CD-R / RW drive, a is a hard disk, b is an OS unit, c is a database unit, and d is a data filing system unit.

The data filing system shown in FIG. 1 shows a case where one PC (personal computer) server 3 and two client PCs 1 and 2 are connected on the same network. Also, PC
A CD-R / RW drive 4 is connected to the server 3. The PC server 3 and the client PCs 1 and 2 each have a hard disk a built therein, and the OS section b and
A database section c, a data filing system section d, and the like are provided. The data filing system program is stored in the data filing system section d in the hard disk a.

The data filing system of FIG. 1 has the same hardware configuration as that of the conventional system, but the data filing system program stored on the hard disk a has various functions as follows. The feature is that it is provided. First, the data filing system program includes a server (3) and a client PC (1,
2) It has a function of operating simultaneously with the database program operating above, selecting data as erasure data, and formatting the data into a format for writing to a CD-R / RW disc. Specifically, it has a function of temporarily saving data that may be needed in the future (the invention of claim 1). Further, together with the information of the access restriction to the data and the user information that selected the data as the erasure data, the writing of the data to the CD-R / RW, the selection of the device, the setting of the copying and the movement, and the setting of the timing. (The invention of claims 2 and 3). In addition, the CD-
It is also possible to read out data from the R / RW disc and to search for desired data based on access restrictions at that time, user information selecting data as erased data, and the like (claims 4 to 6). Invention). Next, operations of data search, selection, and formatting will be described with reference to flowcharts.

FIG. 2 is a flow chart showing a main processing flow at the time of data search, selection and formatting in the data filing system of the present invention. In the figure, # 1 to # 8 indicate steps.

In step # 1, data is searched. In the next step # 2, erase data is selected. Step # 3
Then, it is determined whether or not there is an instruction for further searching and selecting. As a result of the determination in step # 3, when the search and the selection are continued, the process returns to the previous step # 1, and the same processing is repeated. If search and selection are not to be continued, the process proceeds to the next step # 4, where copying or moving is selected.

In step # 5, the selected data is
It is formatted into a format for writing on an R / RW disc (the invention of claim 1). CD created in step # 6
A user's access restriction to the disk is set (the invention of claim 4). In step # 7, a device to which data is to be written is selected (the invention of claim 2). In step # 8, the timing of data transfer is set (the invention of claim 3), and the flow of FIG. 2 ends.

Next, an operation of writing data to the CD-R / RW device will be described with reference to a flowchart.

FIG. 3 is a flowchart showing a main processing flow when data is written to a CD-R / RW device in the data filing system of the present invention. In the figure, # 11 to # 18 indicate steps.

At step # 11, it is determined whether a CD disk is inserted in the write destination device. CD
If the disc is inserted in the write destination device, the process proceeds to step # 12, and the erase data is transferred to the write destination device. Next, in step # 13, the access information is transferred to the write destination device. Step # 14
Then, the user information whose erase data is selected is transferred to the write destination device (the invention of claim 5).

At step # 15, it is determined whether or not the transferred various information is copied. When copying the transferred various information, the copying process is performed (the invention of claim 6), and the flow of FIG. 3 ends. If the result of determination in step # 15 is not to copy, in step # 16,
The erased data is erased from the database, and the flow of FIG. 3 ends. If the result of determination in step # 11 above is that a CD disk has not been inserted in the write destination device, the flow advances to step # 17 to determine whether or not to perform another process. When performing another process, step # 1
At 8, another process is performed, and the flow of FIG. 3 ends.
If it is determined in step # 17 that another process is not to be performed, the process returns to step # 11 and the same process is repeated.

[0020]

According to the data filing system of the first aspect, means for selecting retrieved data as erased data, means for formatting the data, and CD-format as a device for copying or moving after formatting the data. A means for selecting an R / RW disc is provided. Therefore, it is possible to access data that has been erased once.

According to the data filing system of the second aspect, in the data filing system of the first aspect,
When selecting the searched data as erased data,
-Means for selecting whether to copy or move to an R / RW disc is provided. Therefore, in addition to the effect of the data filing system of the first aspect, true erasure of data can be performed.

According to a third aspect of the present invention, there is provided the data filing system according to the first aspect, further comprising means for selecting the searched data as erased data, and setting the timing when copying or moving the data after formatting the data. ing. Therefore, in addition to the effect of the data filing system of claim 1, automatic writing becomes possible.

According to a fourth aspect of the present invention, in the data filing system according to the first aspect of the present invention, when the searched data is selected as erasure data and the data is formatted or copied or moved, the data is written to the CD-R / RW disc. Means is provided for writing information for limiting the users who can access. Therefore, in addition to the effect of the data filing system of claim 1, the CD-
It is possible to prevent unauthorized access by other users to data stored in the R / RW disc.

According to a fifth aspect of the present invention, in the data filing system according to the first aspect of the present invention, when the searched data is selected as erasure data, and the data is formatted or copied or moved, the user information that selected the erasure data is used. We have a means of holding. Therefore,
In addition to the effect of the data filing system according to the first aspect, the search at the time of reading the data stored in the CD-R / RW disk becomes easy.

According to a sixth aspect of the present invention, there is provided a data filing system according to the first aspect, further comprising means for reading data copied or moved to the CD-R / RW disc again. Therefore, in addition to the effect of the data filing system of claim 1, access to the data that should have been erased can be made possible.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an example of an embodiment of a main part configuration of a data filing system of the present invention.

FIG. 2 is a flowchart showing a main processing flow when searching, selecting, and formatting data in the data filing system of the present invention.

FIG. 3 is a flowchart showing a main processing flow when writing data to a CD-R / RW device in the data filing system of the present invention.

[Explanation of symbols]

1 and 2 Client PC, 3 PC server, 4 CD
-R / RW drive

Claims (6)

[Claims] 1. A data search means for searching a device storing data for necessary data, a data selection means for selecting the searched data, and a format means for formatting the selected data. A data filing system comprising: device selecting means for selecting a device to copy or move the formatted data; and data copying / moving means to copy or move the formatted data to the selected device. Means for selecting the copied data as erasure data, means for formatting the data, and a device for copying or moving the data after formatting the data, such as a CD-R or CD-RW disc (hereinafter referred to as a CD-R / RW disc). Means) A data filing system, comprising: 2. The data filing system according to claim 1, wherein when the searched data is selected as erased data,
-A data filing system comprising means for selecting whether to copy or move to an R / RW disc. 3. The data filing system according to claim 1, further comprising means for selecting the searched data as erasure data, and setting the timing when copying or moving the data after formatting the data. Data filing system. 4. The data filing system according to claim 1, wherein the searched data is selected as erased data, and when copying or moving after formatting the data, a user who can access the CD-R / RW disc is identified. A data filing system comprising means for writing information for restriction. 5. The data filing system according to claim 1, further comprising means for selecting retrieved data as erased data, and holding the user information of the selected erased data when copying or moving after formatting the data. A data filing system characterized in that: 6. The data filing system according to claim 1, further comprising means for rereading data copied or moved to a CD-R / RW disc.