Memory management method and system

Abstract

The present invention provides a space management method for a storage device and a system thereof, which are used for a storage device storing data according to the size of a storing unit, referring an aggregation treating a plurality of primitive operation instruction according to the size of a storing unit of a file system. The space management method comprises receiving a primitive operation instruction indicating the address of at least one access unit; translating the address of the access unit into at least one corresponding address of a storing unit, wherein the size of the address of the is not equal to the size of the access unit; accessing the storage device using the address of a storing unit to response the primitive operation instruction. For mass data storing, the device of the present invention is capable of providing faster reading and writing without increasing the manufacturing cost.

Description

technical field [0001] The present invention is to provide a method for accessing data and a related system, especially a memory management method and a memory management system for buffering data transferred between two storage devices using a buffer storage module, wherein The two storage devices are storage devices with basic data access units of different sizes. Background technique [0002] In the file management system, such as the file allocation system (File Allocation System, FAT) supported or used in the general disk operating system (Disk Operating System, DOS), window operating system (Windows) and OS / 2 operating system (File Allocation System, FAT), the disk (storage disk) will be logically divided into several clusters (cluster), and each cluster will be further divided into multiple sectors (sector), for example, a cluster has four 512-byte sectors area, wherein the sector is a minimum access unit in the file configuration system. In addition, for a non-volat...

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Problems solved by technology

[0003] Therefore, the file configuration system can access the flash memory device through a driver, and the driver is used to retrieve or update the data stored in the flash memory device; in the prior art, the storage page The size of the flash memory device is the same as the size of the sector, that is, each storage page in the flash memory device corresponds to a sector in the file configuration system. pages (for example, the size of the storage page is 2K bytes) to provide better performance, therefore, the inconsistency between the size of the sector and the size of the storage page will form a serious problem, and the prior art solves this problem Provides a mechanism to expand the size of a sector to be the same as the size of a storage page, however, the file configuration system will need to occupy a portion of the random access memory (RAM) device, where the random access memory is The memory in the electronic system using the file configuration system will greatly increase the cost of the electronic system

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