1. chance is that such amount of data is not sitting alone. It is online to be accessed. So you can't just factor glacier as a single cost. 2. a datacenter doe

1. chance is that such amount of data is not sitting alone. It is online to be accessed. So you can't just factor glacier as a single cost. 2. a datacenter doesn't require many employees, most of them not being engineers themselves. To get back to my remark on point 1, while managing your own datacenters just to host storage would be expensive, it is usually mutualized with the rest of the infrastructure you need to access and use the data. 3. colo datacenters