Guest Disk Free Space - Veeam ONE Reporting Guide
helpcenter.veeam.com › docs › oneThe report provides information on the amount of free disk space for VM guest OS. To view the report, you must specify guest OS credentials for the guest OS of Microsoft Hyper-V VMs. For details, see section Specify VM Guest OS Credentials of the Veeam ONE Deployment Guide. The report includes information only for VMs running Windows guest OSes.