NFS Oddities

[Norman Elton]

Once in a while (say, once every two weeks), I'll login to a box 
running automounter, and the mount will have failed. Rather than being 
dropped into my shared home directory, I am left in "/". If I try to 
access any other automounted shares, they fail.

/etc/init.d/autofs says that everything looks fine. On my server; 
however, /var/log/messages informs me that:

Mar 26 11:20:10 bubba rpc.mountd: authenticated mount request from 
10.1.96.6:675 for /raid/bin (/raid/bin)
Mar 26 11:20:10 bubba rpc.mountd: getfh failed: Operation not permitted

If I restart the NFS daemon process on the server, everything goes back 
to normal. Things will behave again for a few weeks, then boom. It hits 
again. When this happens; however, it's only to the one client system. 
Other clients are unaffected.

I know this is complex. Any ideas on how to troubleshoot weird NFS 
issues?

Thanks,

Norman

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Norman Elton
Information Technology - Network Engineering
College of William & Mary
757-221-7790