System and method for efficient address translation of flash memory device

Abstract

Disclosed are a system and a method for address translation for a flash memory device, and particularly, disclosed is a technology that is capable of efficiently performing address translation between a logical address provided to the outside of a flash memory and a physical address of an actual flash memory in managing the flash memory device. The system includes: a flash memory system writing a corresponding data page by allocating a physical address space when there is a request for writing a data page from storage clients, and performing address translation between a physical address and a logical address; and a logical address space formed between the flash memory system and the storage client to provide the logical address.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to and the benefit of Korean Patent Application No. 10-2014-0002821 filed in the Korean Intellectual Property Office on Jan. 9, 2014, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to a system and a method for performing address translation for a flash memory device, and more particularly, to a technology that is capable of efficiently performing address translation between a logical address provided to the outside of a flash memory and a physical address of an actual flash memory in managing the flash memory device.BACKGROUND ART[0003]In general, a flash memory is operable with lower power than an existing hard disk and is excellent in terms of stability due to no mechanical part. Further, since the flash memory has a memory characteristic and a nonvolatile characteristic differently from a DRAM, using the flash memory as a next-generat...

AI Technical Summary

Benefits of technology

[0009]First, the present invention provides an efficient address translation method for solving a problem of life-span limitation which is a disadvantage of a flash memory in managing the flash memory.

[0019]Fourth, the present invention can efficiently integrate and use different types of devices by resolving different characteristics of respective devices in integrating different types of flash memory devices and using the flash memory devices simultaneously.

Problems solved by technology

However, the flash memory has a problem that as a usage time elapses, reliability deteriorates.

The problem is caused by limitation of the number of use times (more particularly, the number of erase times) of the flash memory.

However, a difference in address translation method causes a difference in performance, stability, life-span, and the like of the flash memory device.

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