qemu-img create -f qcow2 -b win7-base.qcow2 win7-vm1.qcow2 qemu-img create -f qcow2 -b win7-base.qcow2 win7-vm2.qcow2
A 50GB virtual disk might only take up 13GB of actual space after a clean install. windows 7 qcow2 top
During Windows 7 installation:
QCOW2 (QEMU Copy-On-Write 2) isn’t just any disk format. For Windows 7 VMs, it offers: qemu-img create -f qcow2 -b win7-base
Each clone is <1MB initially and writes only changes to its own file. Performance is "top" because reads come from the base qcow2 cache. it offers: Each clone is <