Overview of the Spiralog file system

this paper, we first discuss the evolution of file systems and the requirements for many of the basic designs in the Spiralog file system. Next we describe the overall architecture of the Spiralog file system, identifying its major components and outlining their designs. Then we discuss the project's results: what worked well and what did not work so well. Finally, we present some conclusions and ideas for future work. Some of the major components, i.e., the backup and restore facility, the LFS server, and OpenVMS integration, are described in greater detail in companion