[one-users] CLVM datastore

Kapetanakis Giannis bilias at edu.physics.uoc.gr
Fri Feb 22 08:22:31 PST 2013


On 20/02/13 13:44, Jaime Melis wrote:
> Hello Kapetanakis,
>
> can you describe the modifications you would make to the deploy script 
> for instance in order to give you a better solution?
>
> cheers,
> Jaime

Maybe I'm wrong and the changes are not needed in kvm driver, but in lvm 
drivers.

The whole idea would be to be able to work directly on block devices
and not copying file images around. For instance to add a new empty 
100GB disk on a VM
you have to create a image for that and then attach it to VM which would 
copy
the image to a new LV. That is not acceptable. A new LV should be 
created and attached directly.

I guess I would also add an ide controller in order to add cdrom device 
which would be able to use .iso images like libvirt does.
I couldn't find out how to do that with templates. Making CDROM images 
didn't work since it asked for IDE controller which was not pressent.

I would pass more options in the vm's XML (like apic feature, clock .. etc).
Again I couldn't use template to do that.

These actions seem to me that are controlled by kvm (deploy, 
attach_disk) and not the tm driver.
Maybe I misunderstood something or didn't read enough.

G
ps. Also saw the cxm drivers but these are supposed to work on XEN and 
not KVM.






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