I noticed this reference as part of the India project bibliography. Azer Bestavros. AIDA-based real-time fault-tolerant broadcast disks In Proceedings of RTAS '96: The 1996 IEEE Real-Time Technology and Applications Symposium, Boston, MA, May 1996. http://www.cs.bu.edu/fac/best/res/papers/rtas96.ps I haven't had time to read it yet, but it sounds relevant. Thanks, -David