On Wed, Dec 6, 2017 at 5:23 PM, Paolo Margara <paolo.margara@polito.it> wrote:
I think that it could be useful.
Greetings,
Paolo
+1 BTW: I notice that the disk seems preallocated even if original qcow2 is thin... is this expected? This obviously also impacts the time to upload (20Gb virtual disk with actual 1.2Gb occupied needs the time equivalent for full 20Gb...) On source (created from virt-manager in Fedora 26): # qemu-img info c7lab1.qcow2 image: c7lab1.qcow2 file format: qcow2 virtual size: 20G (21474836480 bytes) disk size: 1.2G cluster_size: 65536 Format specific information: compat: 1.1 lazy refcounts: true refcount bits: 16 corrupt: false After uploading on NFS storage domain: [root@ovirt01 251063f6-5570-4bdc-b28f-21e82aa5e185]# qemu-img info 77aacfb3-9e67-4ad2-96f6-242b5ba4d9e0 image: 77aacfb3-9e67-4ad2-96f6-242b5ba4d9e0 file format: qcow2 virtual size: 20G (21474836480 bytes) disk size: 20G cluster_size: 65536 Format specific information: compat: 1.1 lazy refcounts: true refcount bits: 16 corrupt: false [root@ovirt01 251063f6-5570-4bdc-b28f-21e82aa5e185]# Thanks, Gianluca