NFS File identity resolution?

[Tom Christiansen]

>From the keyboard of brnstnd at kramden.acf.nyu.edu (Dan Bernstein):
:In article <21078 at shlump.nac.dec.com> prakash at aiag.enet.dec.com writes:
:> Given a set of NFS servers and clients on the same network, and two
:> processes A and B on possibly different nodes, which can communicate
:> using sockets. How can the two processes determine if a file referred to
:> as "/a/b/c/file" by process A is really the file referred to as "/A/B/file"
:> by the process B?
:
:You cannot, at least not reliably.

Well, the lockdaemon manages somehow.   I guess it uses 
something like (host,dev,ino,generation) tuples.

--tom