[CentOS-virt] Eucalyptus 2.0.3 on CentOS - VM auto fail-over?

Hi all.

I am currently testing Eucalyptus. I have two servers, one of them has CLC, Walrus, CC and NC, the second only NC.

When I make a new Xen VM (from kernel, initrd, filesystem image) then it is placed on one of the nodes with NC. I would like to test VM fail-over. When on one node the VM is not running good it should be transferred to the second node as I think. Do I need EBS for that? How should eucalyptus be configured? Any howtos? I have found only basic ones with installation and starting of VM instances.

Best regards, Rafal Radecki.