Atomic write FTL for robust flash file system

被引：12

作者：

Park, S ^{[1
]}

Yu, JH ^{[1
]}

Ohm, SY ^{[1
]}

机构：

[1] Seoul Womens Univ, Seoul, South Korea

来源：

PROCEEDINGS OF THE NINTH INTERNATIONAL SYMPOSIUM ON CONSUMER ELECTRONICS 2005 | 2005年

关键词：

flash memory; FTL; Flash File System; metadata;

D O I：

10.1109/ISCE.2005.1502361

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Flash memory is one of the essential elements for code and data storage in the mobile products. Robustness is very important in the flash memory based file system of the mobile consumer electronic devices, since sudden power failure may happen and it may cause a loss of important user data and a serious trouble which cannot be recovered by user. In this paper, we present a novel technique for a robust flash file system. This method is based on the log block FTL algorithm and guarantees that all the sectors bounded together are written completely or no sectors are written at all for any interruptions, and thus distributed metadata of flash file system can be safely updated, and the integrity of the file system can be safely maintained. Our simulation results show that the FAT file system using our method is maintained safe for sudden power failure events.

引用

页码：155 / 160

页数：6

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