[Users] add NFS storage domain fails on mount timeout via ovirt

[Einav Cohen]

> ----- Original Message -----
> From: "Bob Doolittle" <bob at doolittle.us.com>
> Sent: Wednesday, December 11, 2013 2:32:48 PM
> 
> On 12/11/2013 02:12 PM, Einav Cohen wrote:
> >> NFSv4: requires no firewall configuration (although I thought oVirt
> >> handled this automatically - did you change your firewall config after
> >> host-deploy?)
> > did I change my firewall config on my Host, you mean (i.e. the storage
> > client)?
> > I thought that it didn't matter (i.e. only storage *server* firewall proper
> > configuration is important)?
> 
> No, I meant the storage server. In my case I use my Node as the storage
> server, so host-deploy would configure the firewall for me. If you're
> using a separate storage server it will require manual configuration.
> Just as a sanity-check I'd probably try disabling the firewall
> temporarily on your storage server, and see if it starts working with
> v3. If not it's clearly something else.

Hi Bob, I disabled the firewall on my storage server and attempted to add 
another storage domain on the same storage server with v3 - it succeeded. 
to further verify - I then enabled the firewall again and attempted to 
add yet another storage domain with v3 - and it failed, just like before. 
so it seems that you are right - something is probably wrong with the  
firewall configuration on my storage server - I will investigate. 
Many Thanks!

> 
> There could be other issues which v4 addresses which could cause issues
> with v3 - firewall is just the one I've run into :). As long as you're
> not concerned about non-root-partition exports you're probably fine
> as-is (although I thought v4 support was still experimental? If not, why
> isn't it the default?).
> 
> Cheers,
>     Bob
> 
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