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B # dnf install -y pv libnbd
B # qemu-img create -f qcow2 disk.qcow2 500G
Formatting 'disk.qcow2', fmt=qcow2 size=536870912000 cluster_size=65536 lazy_refcounts=off refcount_bits=16
B # ls -alh disk.qcow2
200K disk.qcow2
B # ssh root@remote "dd if=/dev/sda bs=256M | gzip -1 -" | gzip -d | pv | nbdcopy -- - [ qemu-nbd -f qcow2 --detect-zeroes=on --discard=on disk.qcow2 ]
21GiB 0:04:33 [36.9MiB/s]
446GiB 0:45:30 [ 167MiB/s]
B # ls -alh disk.qcow2
38G disk.qcow2
B # virt-filesystems -l -h -a disk.qcow2
Name Type VFS Label Size Parent
/dev/sda2 filesystem ext4 - 1.0G -
/dev/ubuntu-vg/ubuntu-lv filesystem ext4 - 200G -
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