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Live migrating libvirt disks πŸ”— 1780105742  

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Really not much to it, 0 downtime:
migrate.sh

virsh blockcopy --transient-job --domain $MYDOMAIN --path $SOURCE --dest $DEST
virsh blockjob $MYDOMAIN --info --path $SOURCE
#...wait until the above says it's 100% done, $MYDEVICE is going to be vda,vdb etc based on what disk it was
virsh blockjob $MYDOMAIN $MYDEVICE --pivot

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