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+++ This bug was initially created as a clone of Bug #704943 +++ Description of problem: When create a volume in virt-manager, format as cow, allocate 10M, but after finish creating, the size display as 0M in the vol list. Version-Release number of selected component (if applicable): # uname -r 2.6.32-131.0.1.el6.x86_64 libvirt-0.9.1-1.el6 virt-manager-0.8.6-4.el6.noarch How reproducible: Always Steps to Reproduce: 1. In dir pool, Click New Volume, input the vol-name, and Format as Cow, Max capacity as 10M, Allocation as 10M, Then finish 2. Check the newly created vol in the volumes list Actual results: The size display as 0M # qemu-img info /var/lib/libvirt/dir/a1.img image: /var/lib/libvirt/dir/a1.img file format: cow virtual size: 10M (10485760 bytes) disk size: 8.0K # du -s -B1 /var/lib/libvirt/dir/a1.img 8192 /var/lib/libvirt/dir/a1.img Expected results: The size should display as virtual size,which is 10M Additional info: For qcow2, qcow, raw type, they all display the virtual size as Size value, not the disk size. I think they should keep consistent.
Sounds like a libvirt issue, since the code in virt-manager handles all these image formats the same.