A Customizable and Modular Flash Translation Layer(FTL) Design and Implementation

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A Customizable and Modular Flash Translation Layer(FTL) Design and Implementation

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- A Customizable and Modular Flash Translation Layer(FTL) Design and Implementation
- Vol. 44, Issue 8, Pages: 42-47(2010)
- 作者机构：
  
  国防科学技术大学计算机学院,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP333
- Online First：10 August 2010，
  
  Published：2010
- 稿件说明：
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A Customizable and Modular Flash Translation Layer(FTL) Design and Implementation[J]. 2010, 44(8): 42-47.
DOI：

A Customizable and Modular Flash Translation Layer(FTL) Design and Implementation[J]. 2010, 44(8): 42-47. DOI：

摘要

针对闪存转换层(FTL)的具体设计和实现细节不公开问题

提出了一种模块化的FTL设计

将地址映射、垃圾回收、损耗均衡等几个重要部分设计成不同的模块

并提供可定制接口

在每个模块上都可以针对不同的应用定制不同的算法.用文件系统模拟了一个Flash Memory的存储芯片阵列

并将FTL设计部署在该模拟器上

这样就构成了一个完整的SSD模拟器

为研究FTL中的各种算法和机制以及开发基于SSD的各种应用提供了一个实验平台.通过实验测试了FTL设计的性能

并进行了分析.

Abstract

Flash translation layer(FTL)is the key technique of flash-based SSD. There are many productions of SSD

but their detailed design and implementation are kept as a secret. A customizable and modular FTL design is presented in detail which divides the FTL design into several different parts and supplies an interface to make modification for special applications. A file system is employed to simulate a flash memory array

and the FTL design is implemented on the simulator to form a complete simulator of SSD

which provides a platform for users who make researches on algorithms and mechanisms of FTL and on applications based on SSD. The properties of the FTL design are evaluated through experiments and analyzing.

关键词

Keywords

references

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