JPS583029A - File controlling system - Google Patents

Abstract

PURPOSE:To easily decide erasion of a file, by comparing the number of times of write/readout at every prescribed period, and erasing a file which does not reach a constant number of times, by a file erasing means. CONSTITUTION:When access of write or readout is generatd in each file, a file name of an object to be accessed is received by an input/output part RWC from an access processing part RWA, contents of a control information storage part CTi for its file are read out, and the number of times of access recorded in said contents is sent out to a frequency updating part UD. The frequency updating part UD adds the number of times of write or readout, and writes an updated value again in its original control information storage part CTi. In case when the number of times of access of each control information storing part does not reach a prescribed number of times, a comparing part CP clears the control information storing part itself to zero by an erasing part DL, and said file in a large storage device VL is erased.

Description

[Detailed Description of the Invention] The present invention relates to a file management system, and particularly to a method for improving the effectiveness of access to seven isles.

Conventionally, if the area in the large storage device was used without demarcation, each user would gradually add files and would have to delete files that are no longer being used. I end up. This friend, when you want to reserve the space tg for a file you need, add a file, and if you don't know each of the files, delete which file to secure the space t-. The disadvantage of not being able to determine the 4'lJ value of the method is 6/9.

The purpose of this invention is to overcome the above-mentioned drawbacks, which are solved by the following complicated method.

Writing data to files in large storage devices and lI! In the access method that performs suspension, the control information S of the above file is updated to the intermittent t4 outputting input/output means for writing to the storage section, and the number of consecutive outputs during writing to 1.
! A comparison means for comparing the number of times of writing and an erasing means for erasing the above-mentioned file is provided.
It is manually read out from the control information storage section of the above file, updated by the above changing means, inputted into the 7-aisle system m1lsKIF by the above mentioned input and output means, and stored by the above comparison means at every predetermined period. The above object is achieved by comparing the number of outputs and deleting files that do not reach a certain number of times from the large storage device using the file erasing means □ This invention will be explained in detail below with the help of figures. .

The figure is a block diagram of a N1flll showing a file management system for a large storage device based on the present invention.

In the figure, VL is the large storage device, P1 to P/fi are files in the large storage device, OT is the information provided for each file in ~OT, and B is the data for writing to the large storage device. Ya! ! access means for issuing, R
WA is access hand & R%M access helmet j part 1, R ■
C is the human output section to the control information storage section, UD is the writing and d
The number of outputs is updated, OF is a comparison unit that compares the total number of writes and reads at regular intervals, and DL is a 7-eye that erases files in large storage. Normally, access processing unit B A in access hand RRWM is the file F in the large storage device VL, ~
It manages F4 and their control information storage units OTr to OTn. When writing or continuous access occurs to each file, the access processing gRW person inputs the file name of the file/L/Fi that was accessed to the input/output section Rv.
#0 receives the control information storage 110 for the file Fi.
The number of accesses recorded in the contents of Ti 1
: Number update unit UDK sends 60 number update sUD adds the number of successive outputs, and input/output unit R%O writes this updated value to the current control information record tlltll$OTI again 0 As mentioned above, the control information storage section updated to 4G! The ART OF makes a plan every predetermined period, for example, on the last day of every month, and at this time, the comparison flsOP indicates that the number of accesses to each control information storage section exceeds a predetermined number of times, and the db field updates the number of gl. The number of accesses stored in the UD is cleared to zero.

In addition, when the number of accesses to each control information storage section is zero or does not reach a predetermined fineness, the comparison section OF performs an erasure 1i6DL.
The control information storage section itself is cleared to zero and the relevant file in the large storage device VL is erased.As explained above, this invention allows access to each file in the large storage device at regular intervals. By checking the number of times, files with low usage are deleted, and by deleting files with low usage, the area f in the large storage device is
i! : It became possible to use it effectively.

[Brief explanation of drawings]

The figure is a configuration diagram of an embodiment showing a file management system for a large storage device based on the present invention. In the figure, VL is a large storage device S, Pi to Fn are files, and Q'l' and ~OT are control information. Memory department, R tribute M is T
Voice command means, RWA is access processing j1 part, 8■Ca input/output fl, UII update part, Opd ratio @tlIs DI. is deleted in the 7-isle erasing section◎

Claims (1)

[Claims] In an access management method for writing and reading data to and from files in a large storage device, an input/output means for writing and writing the number of times of writing and starting in the control information storage section of the file, and an input/output means for writing and reading the number of times of writing and starting. An updating means for updating, a comparing means for comparing the number of times of writing and outputting, and a file erasing means for erasing the above-mentioned file are provided, and when data continues to be written into each of the above-mentioned files, the number of times is recorded by the above-mentioned input/output means. The data is extracted from the control information storage section of the file, updated by the change means, and written to the file lit@1 part by the input/output means, and the comparison means compares the number of times of writing and output at each predetermined period. A file management method for a large storage device in which files that do not reach a certain number of times are deleted from the large storage device by the file erasing means.