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NFS on LVS

To: Dave Higgen <dhiggen@xxxxxxxxxxx>
Subject: NFS on LVS
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Joseph Mack <mack@xxxxxxxxxxx>
Date: Mon, 13 Nov 2000 09:12:22 -0500 (EST)
> In fact, all of the new NFS work has FINALLY made it into the official
> tree as of 2.2.18-pre16.  You might want to use that (or later pre-18);
> saves you the trouble of applying NFS patches!

Hi Dave,
        
        One of the problems with running NFS as an LVS'ed service (ie to
make an LVS fileserver), that has come up on this mailing list is that a
filehandle is generated from disk geometry and file location data. In
general then the identical copies of the same file that are on different
real-servers will have different file handles. When a real-server is
failed out (e.g. for maintenance)  and the client is swapped over to a new
machine (which he is not supposed to be able to detect), he will now have
an invalid file handle.

        Is our understanding of the matter correct? 

        If so is it possible to generate a filehandle only on the
path/name of the file say?

        Thanks Joe
--
Joseph Mack mack@xxxxxxxxxxx



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