Design and Implementation of File Layout in Blue Whale Cluster File System
蓝鲸机群文件系统文件layout设计与实现

File layout,which manages the mapping relationship between logical offset of file and physical address of storage device,is important for a file system.The commonly used triple-indirect and extent-based layouts are not fit for cluster file systems that use stripe to improve performance,such like BWFS.A novel fixed-length extent-based layout was presented and improved as power-length extent-based layout especially for small-size files.The presented layout effectively absorbs the direct-mapping advantage of t...