Re: [ovirt-users] import thin provisioned disks with image upload

For transferring images over http, there is no way to avoid sending unused blocks, except compression.

> Maybe this file was crated with preallocation=full? >> > > In virt-manager there is not this logic by default. > The default format is qcow2/sparse > When you create/add a disk you can choose "Select or create custom > storage": > https://drive.google.com/file/d/1gAwjAG5aRFC5fFgkoZXT5wINvQnov > 88p/view?usp=sharing > > And then choose a format between: > raw, qcow, qcow2, qed, vmdk, vpc, vdi > > In my case it was the default one, so qcow2, as qemu-img correctly > detects. > I tested creating qcow2 files with virt manager, and it seems to use the preallocation=metadata by default (behind your back), I guess for improving performance in some cases. oVirt doe not use this option so we don't have this issue when downloading files.

I hope I convinced you this time ;-) Nir