From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alexander Viro <aviro@redhat.com>
Subject: Re: Identifying writes to NFS
Date: Wed, 30 May 2007 13:56:34 -0400
Message-ID: <20070530175634.GK27042@devserv.devel.redhat.com>
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On Wed, May 30, 2007 at 05:35:28PM +0100, Matthew Booth wrote:
> I'd like to be able to reliably recognise a PATH record which refers to
> an NFS mount. It seems that dev=00:xx would be related to the answer.
> However, each mount seems to have its own value of xx, and other mounts
> not backed by a block device, eg /proc and /dev, also have dev=00:xx. 
> 
> The answer can't be related to a single system, as the solution has to
> be rolled out across a large estate with a variety of nfs mounts on
> particular servers.
> 
> Any ideas? Thanks,

man statfs, look at f_type field there.