Loge: A Self-Organizing Disk Controller

Abstract

Loge is a disk controller that organizes data based on the I/O stream, rather than on interpretations of file system structure. Unlike a conventional design, where data location is a static decision made when blocks are allocated, Loge places blocks dynamically, choosing an optimal location for each write at the time the data is written to the disk. Write performance on Loge is largely independent of the I/O stream, and in