I imagine that in most cases it's a giant archive - data that no one really cares about (I mean they do in principal). Then there's probably like 0.1% that's pr

I imagine that in most cases it's a giant archive - data that no one really cares about (I mean they do in principal). Then there's probably like 0.1% that's probably operationally important data - which is actually huge. This is just a guess based on my own usage of it over the last 15 years at different companies.