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Re: [Xen-users] Live migration problem


On Jan 10, 2008, at 10:53 , Alain BARTHE wrote:


Hi,

We have a dozen of dom0, running about 50 domUs. All domUs have disks on LVM, disks are located on a SAN, so it is very easy to live migrate simply by attaching a domU disk on two dom0s.

All dom0s run CentOS50 with Xen 3.0.3.

We tried many time to migrate in vitro some little domUs and it worked perfectly.

Now we really need to migrate a big domU (big by its RAM: 3.6 GB) and we have the following error (log on the from dom0):

Your problem is probably that live migration requires Xen to create a shadow copy of the active RAM of your DomU, so you effectively need to have RAM(DomU) free on the source and 2*RAM(DomU) on the target Dom0.

Cheers,
Pi


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