[Linux-cluster] RHEL4 cluster NFS

[Matthew Geier]

Lon Hohberger wrote:
> On Tue, 2007-03-06 at 20:25 +1100, Matthew Geier wrote:
> 
>>  Any one have a concise example on how to NFS export an ext3 filesystem
>> on RHEL U4 cluster suite. ?

  Ok, thanks, it's 'clicked' now and I have the idea. Some one emailed 
me directly a screen grab of the layout in system-config-cluster that 
showed me the relationship I was missing, however last evening while 
relaxing in the bath, I had a 'flash of inspiration' on how the 
relationship between the file systems in the services section and the 
NFS clients went together and I tried it remotely and it seems to work. 
all your helpful emails arrived later.

  It's still not perfect, but functional

                         <fs ref="Files - u3">
                                 <nfsexport name="NFS Export u3">
                                         <nfsclient name="whitestar NFS" 
options="async,rw" target="whitestar.arts.usyd.edu.au"/>
                                 </nfsexport>
                         </fs>

   I gather the nfsclient should be a public resource so it can be 
reused on other file systems. I made it private. Have to wait to my next 
maintenance window to change it as the resulting service restart will 
annoy all my Mac users. (Unlike Windows, Mac's don't expect their 
servers to go down all the time :-)

  The examples put the nfsexport in the main resources section as well, 
which is why I couldn't make the connection with the export resource and 
the file system it exports. They neatly put the resource configuration 
in order, directly after the file system is is going to reference, which 
has given me a false impression of how it was supposed to work, as I 
mistakenly thought the binding must happen in resources (and I couldn't 
get it to work) when it actually happens in the service section.

  What does the actual nfsexport directive do ?. It seems to be that 
adding an nfsclient to a filesystem resource would imply it.

  Thanks to all those that helped.