John K. Ousterhout
- Associated organizations
- Stanford University
- Fields of study
- IEEE Reynold B. Johnson Information Storage Systems Award
John K. Ousterhout and Mendel Rosenblum introduced a radically different approach to file system design with their log-structured file system (LFS), first presented in 1992. LFS treats disks more like a tape drives, appending all new data sequentially rather than making random accesses. This improved write speed as much as 10x by avoiding expensive disk-head movement, and also enabled faster recovery from computer crashes. The duo’s work has influenced storage systems at all levels, from remapping layers on magnetic disks to flash translation layers to large-scale datacenter storage systems.
Dr. Ousterhout is an IEEE member and professor at Stanford University, CA, USA. Ousterhout was the recipient of the 2014 IEEE Reynold B. Johnson Information Storage Systems Award with Rosenblum.