JPH01191241A - File deleting system - Google Patents

Abstract

PURPOSE:To enable a user to effectively use a magnetic disk device by automatically deleting a file based on stored member names to prevent overflow of the capacity of the magnetic disk device. CONSTITUTION:Management information such as the member name of the file used for work is stored in a storage device connected to a computer system, and the file is automatically deleted based on stored data after the end of work. Since management information such as the member name of the file used for work can be stored in the storage device, every used file is managed without error. Since the file is automatically deleted based on stored data, it is unnecessary to delete the file by user's hands, and the file is effectively used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to file access in a storage device, and particularly to a file deletion method when transferring files between a host computer and a workstation 717.

[Conventional technology]

Conventionally, there has been a method for compressing and expanding files in response to a shortage of file capacity, as described in, for example, Japanese Patent Application Laid-Open No. 59-60666. However, the above conventional technology accumulates file management information and uses that information to store unnecessary files (on a magnetic disk connected to a device used by multiple users, such as a workstation). If you forget to erase a file, there is a risk that the magnetic disk will exceed its capacity. (2) Since multiple people use the file, each user cannot decide whether the file is unnecessary or not.
There are other problems.

An object of the present invention is to provide a file deletion method that deletes suspicious files without the user being aware of it. Management information such as member names of files used for work is stored in a storage device connected to a computer system. Then, after finishing the work,
Delete files based on accumulated data.

[Effect]

By allowing management information such as member names of files used for work to be stored in a storage device, used files can be managed without omission or error.

By automatically deleting files based on accumulated data, there is no need for the user to manually delete files, and files can be used effectively.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

Figure 1 shows the procedure for unified file management and distributed development by a host converter and work stage 1 in an embodiment of the present invention, and Figure 2 shows the procedure for managing files accumulated on a storage device. It is a format of information. FIG. 3 is a flowchart for file inspection.

An example of the operation of each part will be explained with reference to FIG. The part 101 on the left side of the part surrounded by the broken line is the host computer, and the part 10 on the right side is the host computer.
2 is a workstation.

First, the user specifies 103 the files necessary for the work to the file transfer program, and the file transfer program transfers the management information such as the member name specified in 104 to the magnetic disk connected to the work stage cloud 102. 113 in the management information storage file shown in FIG.
An instruction 105 for file transfer is given.

The file transfer program registers the member names of the members used in the management information storage file shown in FIG. Also, as the information used by the member, the host computer 1
A flag indicating that the data has been transferred from work stage 01 to work stage 1 102 is set.

The host computer 101 performs a process 106 to transfer the designated file to the magnetic disk 113 of the workstation 102. User is Works Chi Silan 102
Compile 107 is performed using the transferred file (name) ft, and the output object of compile 107 is output to magnetic disk 115. Compilation 107
Upon completion of 108, the compiler sets a new work use flag for the file output to the magnetic disk and stores it in the member management information storage file shown in FIG. 2. Upon completion of the work on the workstation 102, a file transfer instruction 109 is issued to the host computer 101 in order to transfer the file created by the work on the workstation 102 to the host. host computer 1
In step 01, the file instructed by the workstation 102 in step 110 is stored from the workstation 102 into a file in the host computer 101.

In the work stage 1 102, a file inspection command is input and the file inspection 111 is performed based on the accumulated management information.
I do.

In the file inspection 301, which will be explained using a wcs diagram, the file inspection 301 in FIG. , a flag for deletion is set in the management information storage file in step 304, and if NO, the process ends without doing anything. After the file inspection is completed, member deletion 2 is performed according to the file inspection results.

A member is deleted by deleting the member's directory.

Regarding the timing of file deletion, if you want to delete one file at a time, leave it as shown in Figure 1. If you want to delete multiple files, delete after repeating the processing in 109 and 110.

Furthermore, when deletion is performed at a timing other than these two timings, deletion is performed when the capacity of the magnetic disk is exceeded. This accumulates management information while continuing operations such as file transfer and compilation, but does not perform file deletion processing. If this is done, the capacity of the magnetic disk will be exceeded while the work is repeated. At this point, the file is deleted using the management information accumulated up to now.

〔Effect of the invention〕

As explained above, according to the present invention, by automatically deleting files, it is possible to prevent the capacity of the magnetic disk device from exceeding, and the user can effectively utilize the magnetic disk device. .

[Brief explanation of the drawing]

Fig. 1 is a diagram for explaining the operating procedure of an embodiment of the present invention, Fig. 2 is a diagram showing an example of the format of management reports stored on a storage device, and Fig. 3 is a diagram for explaining the operating procedure of an embodiment of the present invention. 7
0 - Chart. 101...Host computer, 102...Workstation, 113...Magnetic disk.

Claims (1)

[Claims] 1. In a computer system having a non-volatile storage device, in response to a certain program accessing a file, means for storing at least a member name of the file in the storage device; A file deletion method comprising means for deleting the file from the storage device.