Hi,
What started out to be a seemingly simple question has turned into a very
confusing one...
We have several systems running OSF1/DUX/Tru64 4.0D up to 5.1A.
Filesystems among these systems are heavily cross-mounted via NFS. Until
now, I have never paid attention to what version of NFS is being served.
As I understand it, nfsd negotiates version between server and client. To
my surprise, some of the machines appear to be serving either NFS2 or NFS3
depending on who is doing the reporting. This was observed by examining
entries in /var/adm/messages for the various machines. (I assume that if
an entry in messages contains the phrase "...NFS2 server rocky...", this
means that rocky was serving via NFS2 -- at least at that particular
moment.)
So the questions:
1. How can I determine reliably what NFS version is being served by nfsd?
2. What would cause nfsd to change what version it is serving (assuming
that the clients aren't changing the version that they are requesting)?
3. Can I control what version nfsd uses? (a system config parameter?)
4. What are the performance hits that we would take if we are not always
operating at NFS3 or if for some reason some machines are switching back
and forth?
The fact that I've been unable to make any headway on this makes me think
that I'm asking the wrong questions, so I look forward to your answers.
Thanks as always,
Peyton Bland
University of Michigan
Department of Radiology
Received on Thu Feb 28 2002 - 16:58:50 NZDT