JPH02162437A - File processor - Google Patents

Abstract

PURPOSE:To restore the destroyed file contents to the latest normal state as much as possible by performing automatically a back-up process of the file contents and a restoring process based on the back-up contents every time a file processor is started. CONSTITUTION:A 1st memory means (a) stores the processed file contents. A deciding means (c) decides automatically whether the file contents, i.e., the file contents so far processed in the preceding time are destroyed or not when a file processor is started. When the destruction of the file contents is decided by the means (c), a copy control means (d) copies the file contents backed up by a 2nd memory means (b) to the means (a) and restores the file contents stored in the means (a) to the normal state set at the preceding start up. Thus the destroyed file contents are restored to the latest normal state as much as possible.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file processing device suitable for improving the reliability of file contents.

[Summary of the Invention] This invention provides a method for automatically performing backup processing of file contents and restoration processing based on the backup contents in a file processing device each time the device is started, without depending on instructions from an operator. This makes it possible to restore the destroyed file contents to the latest normal state as possible.

[Prior Art] In conventional file processing devices, as a countermeasure in case the processed file contents are destroyed, a backup magnetic disk, etc. is prepared in addition to the current magnetic disk, etc. that is mainly used. After the file processing is completed, the operator operates a predetermined command key or the like to activate a backup processing command, thereby executing the backup processing.

[Problems to be Solved by the Invention] As described above, since conventional backup processing is executed based on instructions from the operator, backup of the processing contents is often not performed because the instructions are forgotten. Ta.

Therefore, if you forget to listen to the backup instruction for a long time even though the file content update process is continuing, you may find that the updated file has been destroyed and have to perform the backup process in a hurry. However, it is only possible to back up the updated state from a long time ago, and it is necessary to perform a considerable amount of update processing again.

An object of this invention is to enable the contents of a destroyed file to be restored to the latest normal state as possible.

[Means to solve the problem] The means of this invention are as follows.

The first storage means a (see the functional block diagram in FIG. 1, the same applies hereinafter) stores file contents, and the second storage means backs up the file contents of the first storage means a. The storage capacity is at least larger than that of the first storage means a.

The determining means C stores the information in the first storage means a when the device is started up.
Determine whether the contents of the file in the file have been destroyed.

When the determining means C determines that the file has not been destroyed, the copy control means d copies the contents of the file in the first storage means a to the second storage means for backup;
When it is determined that the file has been destroyed, the contents of the file backed up by the second storage means a, that is, the normal file contents in the first storage means a at the time of the previous startup, are stored in the first storage means. The contents of the file in the first storage means a are restored to the normal state at the time of the previous startup by copying the seeds to the first storage means a (recalling and recalling them).

[Effect] The operation of the means of this invention is as follows.

The first storage means a stores the processed file contents, but each time the device is started up, the determination means C automatically stores the file contents up to the previous time. It is determined whether the processed file contents are destroyed.

When the determination means C determines that the file has not been destroyed, the copy control means d copies the contents of the file in the first storage means a to the second storage means for backup. That is, only normal file contents are backed up and stored in the second storage means.

Thereafter, file processing such as updating and adding is performed on the files in the first storage means a.

On the other hand, when the determination means C determines that the file has been destroyed, that is, when the file destruction has occurred during the period from the previous startup to the current previous startup, the copy control means d The contents of the files backed up by the storage means of the
The normal file contents in the storage means a are copied (recalled) to the first storage means a, and the file contents in the first storage means a are restored to the normal state at the time of the previous startup.

Therefore, the destroyed file contents can be restored to the latest normal state as possible.

[First Embodiment] The first embodiment will be described below with reference to FIGS. 2 to 4.

FIG. 2 is a block diagram of the file processing device according to the first embodiment.

This file processing device performs data processing with CPU1 as the core, and CPLJI includes ROM2, R
AM3, video RAM4, display control section 5, display section 6,
Input control unit 7, key control unit 8, disk control unit 9, current magnetic disk (hereinafter referred to as current disk) 10A,
A backup magnetic disk (hereinafter referred to as a backup disk) IOB, a floppy disk 11, a printer control unit 12, and a printer 13 are connected.

Various programs and pattern data such as characters and codes are preset in the ROM 2, and a work memory and the like are formed in the RAM 3.

The key input section 8 includes a data input key 8a for inputting various data, and a power switch S for turning the power on/off.
It has W.

The operation signal of the key manual unit 8 is converted into a corresponding code by the input control unit 7 and input to CP and Ul. Then, the CPU 1 executes the current disk IO based on the input data (code) according to the program in the ROM 2.
Various file processes such as record updating are performed on the files in A, the processing results are displayed on the display unit 6 via the display control unit 5, and the results are displayed on the printer 1 via the printer control unit 12.
3 controls processing such as printing.

Note that the RA is used as a work area when performing file processing, etc.
M3 is utilized, and access to the current disk 10A, backup disk IOB, and floppy disk 11 is performed via the disk controller 9.

In addition, the CPU 1 stores display data in code format in the ROM 2.
Convert it to the corresponding pattern data in the video RAM 4
The display control unit 5 generates a display signal based on the pattern data and displays it on the display unit 6.

Furthermore, the CPU 1 automatically performs backup processing of the file contents in the current disk IOA and restoration processing based on the backup contents each time the device is started, without depending on a predetermined command activated by the operation of the key human power section 8. Do it on purpose.

At this time, the backup contents are backup disk I.
The history data of backup processing and restoration processing is stored in the floppy disk 11.

Next, the operation of the first embodiment will be explained with reference to FIGS. 3 and 4.

When the power is turned on by operating the power switch SW, C
The PUI performs various initial processing according to the initial program in the ROM2 (step 51 in Figure 3).
Next, the directory of the file in the current file 10A is examined to check the logical consistency of the file system (step 52).

Then, it is determined whether the file contents are destroyed or not (step S3), and if not, the file contents in the current file 10A, that is, the normal file contents, are copied to the backup disk 10B (step S4). .

On the other hand, if it is destroyed, in order to restore the destroyed contents, the normal file contents in the backup disk IOB are copied to the current file IOA, and the fact that it is destroyed is displayed on the display unit 6 (step S5).

Then, the history data of the backup process in step S4 or the recovery process in step S5 is stored in the floppy disk 11 (step 561), and the process shifts to a normal file processing program.

Next, the above processing contents will be explained using a specific example with reference to FIG.

For example, in a case where the power is turned on at the beginning of the work day and file processing continues until the end of the work day, as shown in Figure 4, the power is turned on at the start of work on September 7th. As a result of turning on, the normality of the file contents on the current disk 10A is automatically checked and found to be normal. In this case, the file contents of the current disk IOA, that is,
The normal file contents processed by the end of the day on September 6th, the previous day, are copied to the backup disk IOH and stored as a backup.

Then, on September 7th, file update processing and the like are executed as is for the file contents of the current disk IOA.

A similar check will be automatically performed the next time the power is turned on at the start of work on September 8th. If the result is normal, the normal file contents processed by the end of the day on September 7th of the previous day are copied to the backup disk IOB and stored as backup.

When the automatic check when the power is turned on at the start of work on September 9th reveals that the file contents in the current disk IOA are destroyed, the September 9th Normal file contents processed by the end of the 7th day are recalled to the active disk IOA.

Therefore, it is only necessary to perform file update processing for September 8th, the previous day.

[Second example Next, a second embodiment will be described with reference to FIG.

In this second embodiment, for example, one week's worth of update records are accumulated, and the main file 28 is updated in a batch manner based on the one week's worth of update records.

That is, the update data input from the key human power section 21 is input-processed by the input processing section 22 and output to the maintenance file updating section 23. Then, the maintenance file update unit 23 converts the input update data into a predetermined record format and sequentially stores it in the maintenance file 24.

On the other hand, when the key human resources department 21 issues a batch update instruction for the first time in a week, for example, the update record creation section 25 sequentially reads out each record for one week stored in the maintenance file 24, and The change data of each record is aggregated to create an update record for each key item, and output to the main file update unit 26. Then,
The main file update section 26 is the update record creation section 25.
The main file 28 is updated based on update records for each key item from .

In this second embodiment, as in the first embodiment, a normality check, backup process, and recovery process are performed every time the power is turned on.

The file to be checked in this case is the maintenance file 24. If the contents of the maintenance file 24 are normal, the contents of the maintenance file 24 are copied to the backup file 27, and if the contents are abnormal, the contents of the backup file 27 are copied. It is copied to the maintenance file 24 and restored to the normal state when the power was last turned on.

Therefore, if you enter update data every two hours, and you turn the power on and off every two hours, even if the file is destroyed, the It will be restored to normal condition. Therefore, you only need to re-enter 2 hours worth of update data.As is clear from the above explanation, if you turn on the power only when file processing is performed and increase the number of times you turn on the power, you can This reduces the amount of re-input data and also saves power. This also applies to the first embodiment.

In this second embodiment, batch processing is performed, so if the above processing were not performed automatically every time the power was turned on, the amount of update data that would have to be re-entered when a file was destroyed would be It will be huge. However, as mentioned above, the backup and recovery processes described above are performed automatically every time the power is turned on, so even if batch processing is performed, the amount of updated data that needs to be re-entered when a file is destroyed is small. It's done.

[Effects of the Invention] According to the present invention, each time the device is started, it is automatically determined whether or not a file is destroyed, and if the file is not destroyed, the normal file contents are backed up,
When the file is destroyed, it is restored to the normal state at the time of the previous startup based on the backed up file contents, so that the destroyed file contents can be restored to the latest normal state as possible. Moreover, since each of the above processes is automatically performed, the burden on the operator is reduced.

[Brief explanation of the drawing]

Fig. 1 is a functional block diagram of the present invention, Fig. 2 is a block diagram of the first embodiment, Fig. 3 is a flowchart showing the operation at startup of the first embodiment, and Fig. 4 is the operation of Fig. 3. FIG. 5 is a diagram for specifically explaining the second embodiment. 1...CPU, 2...ROM, 10A...current disk, 10B--backup disk, S
W...Power switch.

Claims (1)

[Scope of Claims] Comprising a first storage means for storing file contents and a second storage means having a storage capacity at least larger than the first storage means, the file contents are stored in the first storage means. In a file processing device that performs various file processing on files stored in the storage device, a determining means determines whether or not the file contents in the first storage means are destroyed when the device is started; When it is determined that the file has not been destroyed, the file contents in the first storage means are transferred to the second storage means.
When it is determined that the file has been destroyed, the content of the file backed up by the second storage means is copied to the first storage means, and the file contents are copied to the first storage means. A file processing device comprising: copy control means for restoring file contents in storage means to a normal state at the time of previous startup.