My main research interests are in the areas of Operating Systems and Distributed Systems. A key focus is the GMS global memory system, an operating system facility that gives programs automatic access to the memory of every PC in a network. GMS was my Ph.D. thesis project and is an on-going collaboration with the University of Washington and Duke University. In another project, we are building a new file system, called Elephant , that leverages today's large cheap disks to automatically retain all important versions of files. Elephant users are thus protected from accidental delete or overwrite.
Elephant allows users to rollback a directory or file to any point in the past.