Research and design of embedded DVR file system
Jie Zhu · Jisuanji gongcheng yu sheji · 2009
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.