[KLUG Members] Odd NFS Mount problem.

[Adam Williams]

>>I can then remount /usr/pcnet and it is ok, and /home
>>becomes a stale handle.... round and round we go...
>>Anyone seen or heard about this?
>Couple of suggestions ...
>1.  Try starting more NFS daemons in your server's
>/etc/rc.d/init.d/nfs script.

Well,  I oops-ed and restated nfs on the client.  Remounted and both
mounted fine!  Then I realized what I had done and said to myself "How
the &&@) did that help anything?".  But it works now,  I unmount and
mounted each NFS volumes a couple of times to be sure.  This worked on
two clients,  both of which are NFS servers themselves (not the same
volumes of course).

>2.  Recommend making sure your "nfs-utils" version is the same on
>all Linux clients.

On the two clients and the one server they are.  All the other ones are
diffrent versions and work great.  Head scratcher.

>3.  Recommend making all your RedHat versions the same, especially
>since RedHat 7.0 runs kernel 2.2.x and RedHat 7.1/2 runs kernel
>2.4.x.

Well,  I'd love for that to be true.  But it isn't going to happen for
various ugly reasons.

>3a.  What happens if you use NFS v2 for just the 7.0 systems?  BTW,
>NFS v3 support differs _radically_ between kernel 2.2.x and 2.4.x
>(the former, at least as of 2.2.18, is a limited backport of the
>latter).

Yep, I know about that.  All the 7.0 boxes are standard RH kernels,  but
they all work fine.  And the first thing I tried (see #1) seems to have
fixed the problem.  

>4.  Any reason you are using 16KB block sizes?  I usually stick with
>the 8KB default of NFS v2, or 32KB default of NFS v3.  BTW, I think
>Alan Cox _ignored_ the specs, and make 1KB the "default" in 2.2.18+
>(same in 2.4.x???).

AIX.  It really wants a 16KB block size.  So I just tend to do that. 
Actually it is probably more the funky app than AIX itself, but I've got
to play along.