This paper might have some answers: http://www.usenix.org/event/woot08/tech/full_papers/drewry/drewry_html/ http://www.usenix.org/event/woot08/tech/full_papers/

This paper might have some answers: http://www.usenix.org/event/woot08/tech/full_papers/drewry/drewry_html/ http://www.usenix.org/event/woot08/tech/full_papers/drewry/d...