Difference between revisions of "Sysadmin/Migrate virtual machine"
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(Created page with '== How to migrate a KVM machine from an LVM partition == (untested procedure) First, shutdown the VM, then do: mount /dev/treehouse/beamrider-root /mnt ssh housetree mount /…') |
m (moved Infrastructure Team/Migrate virtual machine to Sysadmin/Migrate virtual machine: restructure) |
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Revision as of 15:13, 14 February 2010
How to migrate a KVM machine from an LVM partition
(untested procedure)
First, shutdown the VM, then do:
mount /dev/treehouse/beamrider-root /mnt ssh housetree mount /dev/housetree/beamrider-root /mnt rsync -PHAXphax --delete --numeric-ids /mnt/ housetree:/mnt/ rsync -a /etc/libvirt/qemu/beamrider.xml housetree:/etc/libvirt/qemu/ umount /mnt ssh housetree umount /mnt
Then log to $OTHERHOST and create the domain in virsh.
Downtime can be reduced to just a few minutes by doing a first rsync iteration from within the VM while it's still running.
Make sure you pass all the fancy switches to rsync or you'll loose information on the copy.