Hierarchical File Systems are Dead

Margo Seltzer, Nicholas Murphy

Abstract

For over forty years, we have assumed hierarchical file system namespaces. These namespaces were a rudimen- tary attempt at simple organization. As users have be- gun to interact with increasing amounts of data and are increasingly demanding search capability, such a simple hierarchical model has outlasted its usefulness. For this reason, we should design file systems whose organizations map to the ways we access and manipulate data now. We present a new file system architecture in which we replace the hierarchical namespace with a tagged, search-based one.
Postscript Slides