JPH05342030A - Fault recovery processing system - Google Patents

Abstract

PURPOSE:To speedily and exactly perform recovery at the time of fault generation by providing a means to prepare a sub file from a master file based on information and a means to restart processing after calculating the position of a start point from input advancement information in a memory. CONSTITUTION:When any fault is generated in the way of inputting data, a status at the time of fault generation is read out of an input advancement information part 18 in a memory 17, and a system judges which kinds of fault is generated on which stage of the processing. Next, since latest data at a paragraph are saved in a sub file 16, the data are reproduced by copying this sub file 16 to the master file, and a menu program is started. After the menu program is started, the start point of the paragraph is designated from menu and message display onto a screen 10, and re-inputting is started from that start point by a keyboard 11. Therefore, when any accident such as a disk fault is generated, time for recovery processing and re-input operation in the system is shortened, and labor can be saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fault recovery processing system.

[0002]

2. Description of the Related Art Generally, when data is stored in a file, in order to prevent data loss due to a disk malfunction,
The files are duplicated to prepare for an unexpected accident.

The operation will be described with reference to FIG. Now, assuming that the sales record is input from the keyboard 1, the data is entered into the CPU 2 where it is checked and operated, and the formatted data record is recorded in the record file 4 (disk 3).
Accumulated on top).

Next, when the data is to be repeated on the next day, after initialization of the result file 4 for preparation for the next day, another disk 5
Data is saved in the upper sub-file 6 to duplicate the file. However, if the data loss of the performance file 4 occurs due to a disk failure during data input, copy the secondary file 6 that is the start of the job to the performance file 4, re-enter the data from the beginning, and restore the data. I have to.

[0005]

In the prior art, when an accident such as a disk failure occurs, the state in the system is temporarily returned to the start of work, the file is cleared, and the operator re-inputs the data at the first time. It took a lot of time and effort because it had to be done.

[0006]

According to the failure recovery processing method of the present invention, (A) a paragraph is provided in the flow of processing, each progress status is written and managed in the input progress information section in the memory, and the above information is stored. Means for creating a secondary file from the primary file based on the above, and (B) means for restarting the processing by calculating the position of the starting point from the input progress information section in the memory in order to restore the system when a failure occurs, It is configured to include.

[0007]

The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the accounting information system, data is input from the keyboard 11 while looking at the screen 10, data is checked and calculated via the CPU 12, and a formatted data record is stored in the performance file 14 (on the disk 13). If the operation at this time is a paragraph in the flow of processing, the status indicating the paragraph is written in the input progress information section 18 in the memory 17, and the result file 14 is also saved in the file 16 (on the disk 15). .

If a failure occurs during data input, the status at the time of the failure is read from the input progress information section 18 in the memory 17, and the system determines at what stage of the processing what kind of failure occurred. judge. Next, since the latest data in the paragraph is saved in the sub-file 16, this sub-file is copied to the main file and reproduced, and the menu program is started. After the menu program is started, the starting point of the paragraph is designated from the menu and the message display on the screen 10, and the keyboard 11 is used to start re-inputting the paragraph.

[0010]

According to the present invention, when an accident such as a disk failure occurs, the time and labor required for the recovery process and re-input operation in the system can be dramatically reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a conventional example.

[Explanation of symbols]

 1 keyboard 2 CPU 3 disk 4 result file 5 disk 6 sub file 7 screen 10 screen 11 keyboard 12 CPU 13 disk 14 result file 15 disk 16 sub file 17 memory 18 input progress information section

Claims (1)

[Claims] (A) A paragraph is provided in the flow of processing, each progress status is written and managed in an input progress information section in a memory, and a sub file is created from a primary file based on the above information. And (B) means for resuming processing by calculating the position of the starting point from the input progress information section in the memory in order to recover the system when a failure occurs, and (B).