Difference between revisions of "Moving A Virtual Machine"
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On Taro: | On Taro: | ||
<code> | <code> | ||
| + | virsh destroy machine.name # Shut down the old machine. | ||
virsh dumpxml machine.name > /net/data/gourd/kvm/machine_clone.xml | virsh dumpxml machine.name > /net/data/gourd/kvm/machine_clone.xml | ||
| − | virt-clone -o | + | virt-clone -o original_machine_name -n new_machine_name -f /net/data/gourd/kvm/new_machine_storage.qcow2 |
</code> | </code> | ||
Revision as of 20:48, 8 April 2015
Moving a virtual machine is not so difficult, BUT, you must be careful.
Simple Move
The recipe for a simple move. Assume a move from Taro to Gourd. In this case the Gourd data drive is accessible as /net/data/gourd. One could also have exported and then mounted /kvm on gourd.
On Taro:
virsh destroy machine.name # Shut down the old machine.
virsh dumpxml machine.name > /net/data/gourd/kvm/machine_clone.xml
virt-clone -o original_machine_name -n new_machine_name -f /net/data/gourd/kvm/new_machine_storage.qcow2
On Gourd:
# Move the xml file to correct location:
mv /data/kvm/machine_clone.xml /etc/libvirsh/qemu
# Edit the file to point to the new storage location.
emacs -nw /etc/libvirsh/qemu/machine_clone.xml
# Start machine
virsh define /etc/libvirsh/qemu/machine_clone.xml
virsh start machine.name
Yes, you end up with a small inconsistency in that the machine and virsh think correctly that the name is machine.name while to files are all machine_clone. This can be changed with a rename of the files. You can also keep it to remind you the machine was moved.
