Re: [Xen-users] How do I share a folder with xen guests on Linux?

[Rudi Ahlers <Rudi@xxxxxxxxxxx>]

Nico Kadel-Garcia wrote:
> Tomasz Chmielewski wrote:
> > Nico Kadel-Garcia schrieb:
> > > Tomasz Chmielewski wrote:
> > > > Rudi Ahlers schrieb:
> > > > > Tomasz Chmielewski wrote:
> > > > > > Rudi Ahlers schrieb:
> > > > > > > Hi
> > > > > > >
> > > > > > > How do I share a folder, say /bkp with xen hosts? I'm using 
> > > > > > > CentOS 5.1 as host 
> > > > > > NFS?
> > > > > Sorry, I should have said, I'd like to the folder to be visible to 
> > > > > the guests, and not NFS / FTP, as it will interfere with the 
> > > > > network statistics on the NIC
> > > > I don't think there are any other options to share data between the 
> > > > host and guest other than using network.
> > > > Certainly, using a serial connection or VNC are not an option.
> > > >
> > > > Why not create a separate interface just for this kind of traffic?
> > > Yes, there is. Once you've booted the Xen domaiin, you can add hte 
> > > block device or ISO or other file system image to the list of block 
> > > devices of the guest domain with the "xm" command, and then log into 
> > > the Xen guest and mount it there. I recommend this only for 
> > > read-only block devices, to avoid becoming confused about what is 
> > > writing to the partition and how too manage it.
> > Yeah, but it's not really a "shared" device then.
> Well, yes. If you have multiple systems able to write to the device, 
> you're begging for disaster. That requires network-style mountable 
> file systems, because each OS makes the working system that it owns 
> its own block devices and no one else is mucking with them. It's as 
> bad as having two infants and only one breast for them. They have to 
> take turns.....
> _______________________________________________
ok, I didn't know that's how it works. With VirtualBox one can just 
share a folder between the host & guest (or multiple guests for that 
matter) without any problems, so I thought this was the case with Xen as 
well. But I'll use NFS then between them, thank you :)
--

Kind Regards
Rudi Ahlers
CEO, SoftDux

Web:   http://www.SoftDux.com
Check out my technical blog, http://blog.softdux.com for Linux or other 
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