FLASH file management system with service life management function

Abstract

The invention provides a FLASH file management system with a service life management function. The system comprises a file storage module which comprises a directory area used for storing basic information of a Flash file to form a file directory; a file information area used for storing attribute data of the Flash file; a data area used for storing content data of the Flash file; a file management module which comprises a balance management unit for storing the attribute data in each storage block in a by-turn manner; a writing management unit used for extracting basic information, attribute data and content data of a to-be-written file, writing the basic information into the directory area, writing the attribute data into the storage block and writing the content data into the file information area in sequence; and a power failure management unit used for carrying out power failure management on the directory area by respectively reading and comparing the directory area and the file information area in the power-on recovery process when detecting that power failure occurs in the writing process of the directory area. The system has the beneficial effects that the service life of the FLASH is effectively prolonged; and data loss caused by power failure is reduced.

Description

technical field [0001] The invention relates to the technical field of storage data management, in particular to a FLASH file management system with lifetime management. Background technique [0002] FLASH memory has the advantages of fast speed, large capacity, and low cost, so it is widely used as a storage device. FLASH memory needs its own file system to realize data storage and management. There are few existing file management systems for FLASH memory, and the existing general-purpose file management system has an uncontrollable impact on power-down files after the hardware is powered off, and the power-off processing mechanism is not perfect. The record information of the file management system needs to be modified many times, and the record information is placed in a fixed block of the FLASH memory. Due to the lack of balance to the file life, the frequent operation of this block will shorten the service life of the FLASH memory. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

There are few existing file management systems for FLASH memory, and the existing general-purpose file management system has an uncontrollable impact on power-down files after the hardware is powered off, and the power-off processing mechanism is not perfect. The record information of the file management system needs to be modified many times, and the record information is placed in a fixed block of the FLASH memory. Due to the lack of balance of the file life, the frequent operation of this block will shorten the service life of the FLASH memory.

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