For a basic installation with a separate manager and one hypervisor host, you'll need:
Hypervisor Installation Media
Download the RHEV-H 6 Image (for RHEV-M 3.5) ISO.
Download the RHEV-H 7 Image (for RHEV-M 3.5) ISO.
A Bootable Disk
Burn the ISO image to DVD media or create bootable USB media.
A Network Connection
A public network connection is needed to register and download packages from Red Hat for this guide.