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My research has focused on storage systems, with a focus on security, archival storage, and large-scale storage. I have also done significant research in operating systems and distributed systems.

File systems & storage

Secure storage

I have been exploring secure storage for over twenty years, starting with my work on lockbox storage, published in FAST 2002.

Archival storage

Stuff about archival storage.

Flash storage

Stuff about flash storage, including Pure Storage.

Scalable storage

Stuff about scalable storage, including Ceph.

Operating systems

Recently, I’ve been investigating operating systems for single-level stores that restructure how the operating system interacts with non-volatile storage: the Twizzler project.