Re: [Xen-users] Re: Sharing a partition between dom0 and domU

[Michael Mey <michael.mey@xxxxxx>]

On Friday 16 December 2005 11:11, Marcin Owsiany wrote:
> On Fri, Dec 16, 2005 at 10:27:19AM +0100, Michael Mey wrote:
> > On Friday 16 December 2005 09:15, Marcin Owsiany wrote:
> > > On Thu, Dec 15, 2005 at 02:01:53PM -0600, Charles Duffy wrote:
> > > > Marcin Owsiany wrote:
> > > > >I'm currently preparing to xen installation. In the system that I'm
> > > > >going to set up, there will be a need to copy large amounts of data
> > > > >(therefore I want to avoid using network) from domUs to the dom0
> > > > > (one way only).
> > > >
> > > > Considered using a filesystem like GFS which can be safely mounted by
> > > > multiple machines?
> > >
> > > Good idea. Before I start to look at it: are there more filesystems
> > > like this?
> >
> > There is also OCFS2 from Oracle or you can try PeerFS (commercial) but
> > has nice features.
>
> Thanks for the pointers. Have you tried any of these with Xen, i.e. not
> by accessing the FS from separate nodes over network, but by directly
> mounting the same device twice?
No, I haven't, but it should work the same way as it does with a cluster-fs on 
a san being mounted from several nodes at the same time.

> > OCFS2 compared to GFS is a bit simpler to install I would say.
>
> Any more comments on maturity, stability, features?
The purpose I was testing GFS and OCFS2 was for storing domU-fileimages on it 
with the result that it works fine with OCFS2 and doesn't work with GFS due 
to some loopback-mount limitations of GFS.


-- 
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Michael Mey                                  
Thinking Objects Software GmbH    |   mailto: michael.mey@xxxxxx 
Lilienthalstrasse 2/1                         |   phone: +49 711 88770-147
70825 Stuttgart-Korntal, Germany  |   fax: +49 711 88770-449
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