摘要
轻量级FAT文件系统的兼容性强,但面向Flash存储器时存在容量利用率低与可用寿命缩短的问题。提出了FAT文件系统的优化设计:创建空闲队列、有效队列以及无效队列,分类管理FAT表中各个簇的使用情况,以高效执行垃圾回收操作;每次从随机簇号开始查找空闲簇,从而实现簇对应的Flash物理块之间磨损均衡。
Lightweight FAT file system is highly compatible,but there are problems such as low capacity utilization and shorter available life.The optimized design of FAT file system is proposed.Firstly,creating idle queue,valid queue,and invalid queue,then it can classify and manage the usage of each cluster in FAT.The idle clusters are searched from random cluster number each time to achieve wear leveling between the flash physical blocks.
作者
王冬
杨琼
Wang Dong;Yang Qiong(Xi'an Aeronautics Computing Technique Research Institute,AVIC,Xi'an 710065,China)
出处
《信息通信》
2019年第4期83-84,共2页
Information & Communications
基金
装备预研联合基金项目资助(6141B05060401)
