Method and device for realizing write once read many of files

Abstract

The present invention provides a method and a device for realizing write once read many of files. The method comprises the steps of: setting a protection period corresponding to each file in a file system; receiving an access request of a current access behavior to a first file in the file system; determining whether the first file is in the corresponding protection period; if not, allowing the access to the first file by the current access behavior; if yes, determining whether the current access behavior is in a read-only mode; and if the current access behavior is in the read-only mode, allowing the access to the first file by the current access behavior, and if the current access behavior is not in the read-only mode, denying the access to the first file by the current access behavior. The device comprises a first setting unit, a receiving unit, a first determining unit, a first executing unit, a second determining unit and a second executing unit. By adopting the present scheme, the flexibility of the write once read many of the files can be improved.

Description

technical field [0001] The invention relates to the field of computer file storage, in particular to a method and device for realizing one-write-multiple-read files. Background technique [0002] In many fields, in order to achieve specific purposes, it is necessary to ensure that files stored on storage media cannot be changed or deleted within a period of time. For example, in order to protect the rights of patients in the event of medical accidents, the treatment data of patients in hospitals It is not allowed to be modified. Another example is the surveillance video. In order to provide clues to the public security organs to handle the case, the surveillance video needs to be stored for a period of time, and it must be ensured that the video data will not be deliberately deleted during this period. In order to achieve such a goal, it is necessary to realize the WORM of writing once and reading many files, that is, the files stored on the storage medium are only allowed t...

AI Technical Summary

Problems solved by technology

[0003] At present, the method of realizing file write-once-read-many is mainly realized through tape technology. Based on the characteristics of tape technology, files stored in tape cannot be deleted or modified.

[0004] After the file is stored in the tape, the file can no longer be modified or deleted, which brings a lot of inconvenience to the work, such as information errors due to negligence, and the information cannot be modified after being stored in the tape. In addition, Since the files in the tape cannot be deleted and the tape cannot be reused, the flexibility of writing files once and reading many times is low

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