On Tuesday, 18 April 2017 13:03:11 CEST Vasiliy Tolstov wrote: > 2017-04-18 8:39 GMT+03:00 Michal Privoznik <[email protected]>: > > s that right? Here I'm successfully cloning a volume across two storage > > pools: > > > Yes, it works but.... > Source image: > image: /var/lib/libvirt/images/sda/143177 > file format: qcow2 > virtual size: 5.0G (5368709120 bytes) > disk size: 902M > cluster_size: 65536 > Format specific information: > compat: 0.10 > refcount bits: 16 > > Dest image: > image: /var/lib/libvirt/images/sda/test > file format: qcow2 > virtual size: 5.0G (5368709120 bytes) > disk size: 902M > cluster_size: 65536 > Format specific information: > compat: 0.10 > refcount bits: 16 > > > But > -rw------- 1 root 908M Apr 18 13:59 143177 > -rw------- 1 root 902M Apr 18 13:59 test > > Why size is changed on destination image? In case of cp > --spwarse=always size does not changed.
As Michal and Daniel said, this should not be a problem. Also, you can
check the content is the same using virt-diff (part of libguestfs):
# virt-diff \
-a /var/lib/libvirt/images/sda/143177 \
-A /var/lib/libvirt/images/sda/test > log
Most probably log should be empty, since the actual content of the
image did not change.
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