Cold Migration
Before we get into Xen's automated migration, we'll give an outline of a manual cold migration process that approximates the flow of live migration to get an idea of the steps involved.
In this case, migration begins by saving the domain. The administrator manually moves the save file and the domain's underlying storage over to the new machine and restores the domain state. Because the underlying block device is moved over manually, there's no need to have the same filesystem accessible from both machines, as would be necessary for live migration. All that matters is transporting the content of the Xen virtual disk.
Here are some steps to cold migrate a Xen domain:
# xm save <domain id> <savefile> # scp <savefile> <target.domain.tld:/path/> ...
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