1. 查看虚拟机快照 virsh snapshot-list vmname
  2. 查看快照的详细信息 virsh snapshot-info vmname snapname
  3. 创建内部快照 virsh snapshot-create-as vmname snapname
  4. 创建带内存内部快照 virsh snapshot-create-as --migrate vmname snapname
  5. 创建外部快照 virsh snapshot-create-as vmname snapname --no-metadata --disk-only --atomic
  6. commit到base镜像 virsh blockcommit vmname vda --verbose --pivot --active 7.pull到top镜像 virsh blockpull vmname vda --wait --verbose
  7. 在线rebase virsh qemu-monitor-command vmname '{"execute": "drive-backup", "arguments":{"device":"drive-virtio-disk0", "sync":"full", "target":"/path/imagename", "format":"qcow2"}}'
  8. 离线rebase qemu-img rebase -u -b /path/base /path/top