How "big" is LSST DM?

What are some key numbers that describe the size of the survey and data management system (e.g., how big is an image? how much data is accumulated in a night?) with a summary at

Related question - how many people are working on LSST (in DM / Camera / etc)? I get this question a fair number of times. Just a ballpark is fine, and even if it’s just for DM.