I was reading another post here Use Thin LVM Volume for KVM VM trying to understand whether or not KVM is capable of creating thin provisioned VMs. The post from about 8 months ago has both the OP and responder mentioning not supported to thin provision with KVM. Doing more research on the internet there are a lot of older posts from 5-6 years ago(2015 or so) indicating the same. However, looking at one of my own images I would say it is thin provisioned. Is it? Do I misunderstand the terminology here? Basically, before I start down the path of using KVM/libvirt I want to make sure I'll have enough disk space and thin provisioning is the key.
[root@xeon33 images]# ls -lh vm1.qcow2 -rw-------. 1 qemu qemu 241G Nov 2 14:53 vm1.qcow2 [root@xeon33 images]# du -h vm1.qcow2 1.4G vm1.qcow2