srivas remembers citi's iafs work accurately, but keep in mind that we assumed
aggressive client caching and plenty of it, whereupon the clients skim most of
the cream and intermediate server hit rates are abysmal. but if clients do
little or no caching, then an intermediate server has high hit rates and makes
sense.
see <a href=ftp://citi.umich.edu/public/techreports/PS.Z/citi-tr-91-3.ps.Z>
D.A. Muntz and P. Honeyman, "Multilevel Caching in Distributed File Systems"
in <i>Proc. Winter USENIX Conf.</i>, San Francisco (January 1992)</a> as soon
as the file server it lives on comes back to life.
peter
