qcow to rhev

Helo. I am new in RHEV. Till now I've used a kvm and managed by virsh.
I try to import my kvm machines to new RHEV virtualization platorm based on iSCSI array.
I know that there is an option to import machine directly from kvm via qemu+ssh://,
but it is to slow for me. So I prefer to copy all my qcow2 files from the old kvm platform and import to RHEV.
Do you know any procedure how to do that?
I have read a few manuals but the information about qcow2 -> RHEV is very poor.