How many staff would you say would be required to run a medium size data center. I would also be interested to know exactly what type of staff this would be.
I think it depends on your business, are you doing housing or hosting? For example, where I work we have about 50 people working on our DC divided in areas: communications, systems, database, help desk, production (they work with/monitor our application). We hire a company for the cleaners. And I'm not including management (higher ups, finance, secretaries, servants, HR) and the developers, because we are located on the DR. We have a total of 180 people, give or take a few.