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Pc's dropping connection to NFS

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# 1  
Old 11-17-2018
Pc's dropping connection to NFS
Hi there.

I have a problem with pc's dropping their mounts to a network Nas. The Nas is a Synology DiskStation, it has enough concurrent connections which I think off the top of my head is about 200 and I only need 120.

So, question 1 is why will a unix box drop a mount, and 2, how can I stop it happening?

Many thanks.
# 2  
Old 11-17-2018
Firstly, Synology kit is known for some idiosyncratic behaviour.

Using NFS with Synology - General Discussion - OSMC Forums

Second, the question is: Are the clients using the same NFS version (V2, 3 or 4) as the Synology?????

NFS 3 being much simpler that NFS 4, I would be inclined to set all boxes to V3 and see how that behaves.

Is there any pattern as to when NFS connections cease to function? Any error messages produced?
# 3  
Old 11-19-2018
Also, on most operating system implementations of 'mount', you can set which version (2,3, or 4) of NFS to use on the mount command line.
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