JPH03220638A - File saving and restoring system - Google Patents

Abstract

PURPOSE:To simplify the work of advance preparations by only designating a save source, medium information of a save destination, and a save object file name at the time of saving and only designating a restore source, medium information of a restore destination, and a restore object file name at the time of restoring to automatically calculate a required capacity. CONSTITUTION:In the save system, file save information such as the save source medium, the save destination medium, and the save object file name is inputted from a terminal 15 by a save information input means 11, and the save capacity and the number of volumes of the save destination medium are calculated in a capacity and volume number calculating means 12 by input information and file management information in a save object file 16. In the restore system, file restore information such as the restore source medium, the restore destination medium, and the restore object file name is inputted from a terminal 25 by a restore information input means 21, and the restore capacity is recognized in a capacity recognizing means 22 by input information and a restore object file 26. Thus, the work of advance preparations like calculation of the required capacity is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file saving and restoring method for dealing with file failure in a computer system.

[Conventional technology]

Traditionally, when saving files in case of a file failure, a worker manually calculates the file capacity for each medium and converts it into the backup/restore capacity and number of volumes. , compared with the capacity of the evacuation/recovery area.

[Problem to be solved by the invention]

In the conventional evacuation/recovery method described above, the capacity is calculated manually by workers, so calculation errors are likely to occur.If there is a calculation error, the evacuation/recovery area will be insufficient and the evacuation/recovery area will be delayed.
The job ended abnormally during the execution of the recovery job.
Since you have to recalculate from the beginning and execute the job, it takes a lot of time to complete the job execution.
The drawbacks are that the number of man-hours increases and failure recovery takes too much time, which may impede business operations.

[Means to solve the problem]

The configuration of the file evacuation/recovery method of the present invention is such that when dealing with a file failure in a computer system, evacuation information input means for inputting information on an evacuation source medium, an evacuation destination medium, and an evacuation target file; a conversion means for calculating the capacity of the saved target file and converting it into the number of volumes of the evacuation destination medium; an output means for outputting the evacuation capacity and the number of volumes calculated by the conversion means to a screen and the destination medium; an output means for outputting information on the file to be saved from the source medium to the destination medium; a recovery information input means for inputting information on the source medium, the destination medium, and the file to be recovered; and a specified file to be recovered. recognition means for recognizing the capacity of the recovery source medium, means for comparing the capacity recognized by the recognition means with the free space of the recovery source medium, and outputting information about the recovery target file from the recovery source medium to the recovery source medium. and an output means for outputting information to the evacuation source medium and the evacuation destination medium when evacuation is performed by the evacuation and restoration information input means.

By specifying the name of the file to be saved and, during recovery, the source medium, the destination medium, and the name of the file to be recovered, you can save and restore the file without worrying about the free space available for saving and restoring the file. It is characterized by enabling evacuation and recovery.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIGS. 1(a) and 1(b) are diagrams mainly showing the flow of operation of an embodiment of the present invention.
It consists of the evacuation method shown in FIG. 1(b) and the restoration method shown in FIG. 1(b).

This embodiment will be specifically explained based on FIG.

First, the saving method is to input file saving information such as the saving source medium, saving destination medium, saving target file name, etc. from the terminal 15 using the saving information input means 11, and from the input information and the file management information of the saving target file 16, The capacity/volume number calculation means 12 calculates the evacuation capacity and the number of volumes of the evacuation destination medium.

Volume number output means 1 outputs the capacity and volume number.
3 is output to the screen of the terminal 15 and the evacuation destination medium 17, and the operator looks at the number of volumes displayed on the screen of the terminal 15, performs a volume number judgment A1 to determine whether the number of volumes to be prepared is sufficient, and sets the volume. If the number is insufficient, prepare the missing volume in volume preparation A2. Then, the file unit 14 saves the save target file 16 to the save destination medium 17.

Next, in the recovery method, the recovery information input means 21 inputs file recovery information such as the recovery source medium, the recovery destination medium, the recovery target file name, etc. from the terminal 25, and the capacity recognition means 22 inputs the input information and the recovery target file 26. Recognize the recovery capacity from.

The free capacity comparing means 23 compares the capacity with the recovery source medium 2.
If there is not enough free space, an error message and insufficient space will be displayed on the screen of the terminal 25.

The operator performs capacity judgment B1 to see if there is an error message on the screen of the terminal 25, and if there is an error, prepares free space B1.
Step 2: Prepare the remaining free space. Then, the file output means 24 restores the restoration target file to the restoration source medium 27.

[Effects of the Invention] As explained above, the present invention provides information on the media of the source and destination, and the name of the file to be saved when saving, and when restoring,
By simply specifying the recovery surface, the media information of the recovery destination, and the file name to be recovered, the required capacity of the backup and recovery destinations will be automatically calculated, and the required number of volumes and capacity will be prepared before executing the job. can.

This makes it possible to prevent jobs from ending abnormally due to insufficient capacity at the backup and recovery destinations.

Therefore, advance preparation work such as calculating the required capacity becomes easier.
Since there is no need to re-execute jobs due to insufficient capacity, the number of man-hours required for file backup and recovery work can be reduced, and the time required to recover from failures can be shortened.

[Brief explanation of drawings]

FIGS. 1(a) and 1(b) are diagrams mainly showing the flow of operation of an embodiment of the present invention. 1. Evacuation information input means, 12. Evacuation capacity volume number calculation means, 13. Evacuation volume number output means, 14. Evacuation file output means, 15. Terminal.
]6...Evacuation target file, ]7...Evacuation destination medium,
21... Recovery information input means, 22... Recovery capacity recognition means, 23... Free capacity comparison means, 24... Recovery file output means, 25... Terminal, 26... Recovery target file, 27...Recovery optical medium, A],...Determination of the number of evacuation volumes, A2...Preparation of insufficient evacuation volume, B1...Determination of recovery capacity, B2...Preparation of insufficient free space.

Claims (1)

[Claims] When dealing with a file failure in a computer system, an evacuation information input means for inputting information on an evacuation source medium, an evacuation destination medium, and an evacuation target file, calculates the capacity of the specified evacuation target file, and performs the evacuation. a conversion means for converting into the number of volumes of the destination medium; an output means for outputting the evacuation capacity and number of volumes calculated by the conversion means on a screen and the destination medium; an output means for outputting file information; a recovery information input means for inputting information on a recovery source medium, a recovery destination medium, and a file to be recovered; a recognition means for recognizing the capacity of a specified file to be recovered; and this recognition means. means for comparing the capacity recognized by the above with the free space of the recovery destination medium, and an output means for outputting information on the recovery target file from the recovery source medium to the recovery destination medium, By information input means,
At the time of evacuation, specify the evacuation source medium, the evacuation destination medium, and the name of the file to be saved, and at the time of recovery, specify the recovery source medium, the recovery destination medium, and the name of the file to be recovered, thereby saving and restoring the target file. A file backup/recovery method that is characterized by making it possible to save and restore files without being aware of free areas for files.