~4 GB for the image, plus additional space for logs and configurations. Where to Download
To obtain the official, secure, and legal version of the image: Xrv9k-fullk9-x-7.1.1.qcow2 Download
Navigate to the Cisco Download Suite . Search: Look for "IOS XRv 9000 Router." Select Version: Choose 7.1.1 from the sidebar. ~4 GB for the image, plus additional space