>i'm curious as i'm interested in looking at coda to serve up some rather large
>db files to a few machines and the afs limitations won't cut it.

First, coda's design decisions have made it a poor choice for database applications.
You get session semantics rather than UNIX semantics on files and this really
causes problems for databases. 

Next, most of the coda servers I know of have stayed in the limits you stated for afs.
I'm currently working on testing much larger servers and their limits and working
to fix problems that will be found.

-- 
Phil Nelson                    NetBSD: http://www.netbsd.org
e-mail: phil@cs.wwu.edu        Coda: http://www.coda.cs.cmu.edu
http://www.cs.wwu.edu/~phil