[Qemu-devel] qemu-img cannot convert 280G VHD file to qcow2 rightly

[redtone]

Vhd file uslinux01-1.vhd is uploaded to KVM node, the original VHD's size is
290G
But when I convert to QCOW2, I find the disk size is 127G, and then I also
found the uslinux01-1.vhd disk size is 127G by qemu-img info.

Qemu version is 1.7.0 stable

address@hidden disk01]# qemu-img convert -f vpc uslinux01-2.vhd -O qcow2
kvm570_data
address@hidden disk01]# qemu-img info kvm570_os
image: kvm570_os
file format: qcow2
virtual size: 10.0G (10737377280 bytes)
disk size: 3.9G
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: false
address@hidden disk01]# qemu-img info kvm570_data
image: kvm570_data
file format: qcow2
virtual size: 127G (136899993600 bytes)
disk size: 113M
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: false
address@hidden disk01]# qemu-img info uslinux01-2.vhd
image: uslinux01-2.vhd
file format: vpc
virtual size: 127G (136899993600 bytes)
disk size: 5.0G