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→Motivation
Because of this matters, this issue I had put in his moment off until new order has got back to the scene.
Openvz has its own mechanisms to perform actions when starting a container. Migration knows about container state before migrating so after migrating data it can returns return the container to the the same previous state.
When considering migration that take into account insulated filesystems, it involve situations not considered by standard migration. By example, migrating a stopped container with its own filesystem, probably it will not have available its files because openvz supposedly will have scripts to unmount filesystem when container is stopped.