Data management apparatus and data management method

一种数据管理装置、数据的技术，应用在数据管理领域，能够解决可操作性和响应其它处理出现问题、重负荷等问题，达到抑制可操作性低的效果
CN100477714CInactive Publication Date: 2009-04-08KK TOSHIBA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KK TOSHIBA
Publication Date
2009-04-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

There is disclosed a technique that can reliably erase data to achieve an enhanced level of security, while suppressing the problem of low operability and that of poor response of some other process due to an increased load. A data management apparatus for managing the data of a file system comprises a path information altering section for altering the contents of the path information indicating the location of the file to be erased according to a file erasing request for erasing the file so as to indicate a predetermined location, a task monitoring section for monitoring the state of the task being executed by the CPU adapted to execute processes relating to the file system and an erasing task executing section for executing an erasing task of erasing the real data of the file for which the contents of the path information are set to indicate the predetermined location according to the state being monitored by the task monitoring section at a time when no predetermined task other than the erasing task is being executed.
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Description

technical field

[0001] The present invention relates to data management in file systems. In particular, the invention relates to erasure of real data of files. Background technique

[0002] The FAT file system is known as a typical system for managing files on a hard disk. The FAT file system generally includes three types of data, including FAT (file allocation table, file allocation table), directory entries, and files as real data. When deleting a file from an ordinary FAT file system, the FAT and directory entries that provide information about the location of the real data on the hard disk are deleted, but the real data will remain on the hard disk, so from a security point of view, a A technology that completely erases the real data left on the hard drive.

[0003] In fact, this technique is to erase the real data formed on the hard disk by rewriting the data left in the real data area of ​​the hard disk with special data (especially Patent Document 1: Japanese Pate...

Claims

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