摘要
基于FAT32文件系统的数字视频录像系统(DVR)硬盘在长时间录像过程中产生大量文件碎片而导致硬盘存储效率显著下降。针对该问题,设计了一种能避免产生大量文件碎片并适应DVR硬盘录像需要的FAT32改进型文件系统。分析了基于FAT32文件系统的DVR硬盘文件存储和访问的特点,详细介绍了该文件系统的设计方案,并通过实例分析了系统的性能。
In the process of the long time video record, a number of file fragment are produced in the DVR hard disk based on FAT32 file system and result the storage efficiency remarkable drop. According to this, an improved FAT32 file system is designed, which can avoid producing the massive file fragment and adapt to the needs of DVR hard disk. First the features of storage and access to DVR＇hard disk files based on FAT32 file system are analyzed, then the design proposal of the improved file system is particularly introduced, and the system performance is analyzed by the example.
出处
《计算机工程与设计》
CSCD
北大核心
2009年第4期803-804,823,共3页
Computer Engineering and Design
