I've inherited a small Azure set-up where they are using a Recovery Services value to backup three virtual machines and two file servers using the Azure Backup agent. One of the agents on the file servers hadn't run successfully for over a year (!). As it was such a long time and there was no record of the passphrase, I removed the backup item from the vault and re-added the file server. That all worked well and 400GB backed up over 24 hours.
However storage use on the vault went up from 1.3TB to 1.8TB. My concern is that the old failed backup is still there.
How do you get a breakdown of storage use in the vault?