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2018 May 01
1
Re: Create qcow2 v3 volumes via libvirt
...0G (1073741824 bytes)
disk size: 516K
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: true
[root@c7client images]#
The same if I create a volume with a backing file from virt-manager (not
important if this is 0.10 or 1.1):
[root@c7client images]# qemu-img info zzz4.qcow2
image: zzz4.qcow2
file format: qcow2
virtual size: 1.0G (1073741824 bytes)
disk size: 196K
cluster_size: 65536
backing file: /var/lib/libvirt/images/zzz2.qcow2
backing file format: qcow2
Format specific information:
compat: 1.1
lazy refcounts: true
[root@c7client images]#
But I don&...
2018 Jan 30
4
Create qcow2 v3 volumes via libvirt
Hi all,
on a fully patched CentOS 7.4 x86-64, I see the following behavior:
- when creating a new volumes using vol-create-as, the resulting file is
a qcow2 version 2 (compat=0.10) file. Example:
[root@gdanti-lenovo vmimages]# virsh vol-create-as default zzz.qcow2
8589934592 --format=qcow2 --backing-vol /mnt/vmimages/centos6.img
Vol zzz.qcow2 created
[root@gdanti-lenovo vmimages]# file