93,000–95,000 backups per week with an aggregate data volume of about 4 petabytes of backup data
HP IT recorded a podcast with ZDnet's Dana Gardner on their HP Data Protector implementation. They're backing up 17,000 servers worth of data across the globe with Data Protector 6.11. Read the story or link to the podcast at IT-Director.com.
There's some great information here! An awesome amount of data and servers being protected by a single product. Awesome!