[one-users] Using Opennebula with a uncommon Xen-configuration

[Andreas]

Hi Jaime,

thanks for reading and answering.  I read the article about the the CERN use 
case, but in IMHO it's not the same.
They use complete partition images for the VMs. 
The difference is, they make a dd of the VM-partition and i mount the VM-
partition in the Dom0 and tar the files in the VM-partition. The tar-archive 
is my VM-image.  
The last days i looked  at the scripts of the LVM Transfer Manager. Maybe it's 
possible to change these scripts that they do a mount&tar instead of a dd. But 
i don't know how the processes work in detail.

All suggestion are welcome.

 
Regards
Andreas


> Hi Andreas,
> 
> it seems that you have a similar use case as CERN does. Take a look at
>  these links to see if this is what you're looking for:
> 
> The storage setup is explained here: http://blog.opennebula.org/?p=620
> A preliminary version of the TM drivers:
> https://twiki.cern.ch/twiki/bin/view/FIOgroup/OpenNebula
> and http://opennebula.org/software:ecosystem:scp-wave
> 
> Regards,
> Jaime
> 
> On Wed, Apr 13, 2011 at 8:16 AM, Andreas <yoss at gmx.net> wrote:
> > Hi,
> >
> > since i hear a  speech from Tino Vazquez on the OSDC in Germany (which
> > was really good), im very interested in opennebula.
> > After reading documentation und testing some parts there seems to be a
> > problem
> > with our uncommon Xen-configuration.
> >
> > We have no central storage for the images. The images are copied over ssh
> > to
> > the hosts (Dom0).
> > Our DomUs based on LVM-partitions, which are directly mounted in the
> > DomU. They appear as a partition and not as a disk in the DomU.
> > The disk configuration for a DomU is like following:
> >
> >  'phy:/dev/system/helios-1_root,hda1,w'
> >
> > To save a DomU we mount the LVM-Partition in the Dom0 and make a
> > tar-archive
> > of the files and directories in the partition. A copy of the kernel and
> > the initrd  is provided in the Dom0 to start the DomU with the
> > Xen-bootloader.
> >
> > Does support Opennebula such a type of configuration and if not, how
> > difficult
> > it is to adjust it? Where i must start, if i want integrate these
> > configuration?
> >
> >
> > Thanks,
> > Andreas
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>