That actually sounds remarkably accessible. Considering how much of a donation you need to make for naming rights to a rural university professorship/library building, surely this would appeal to some freshly minted startup decamillionaire with a slight peterthielite anti-establishment bent?
Actually 15 racks if you’re using backblaze storage pods. Which now that I think about it, is about how many racks I saw in the various rooms of the church. [I just happened to be at IA headquarters last weekend.] The storage pods hardware itself would be another $1m, and then let’s assume other $0.5M for various things I’m not considering (network equipment, power transformers, etc.). Still just $5m for the base hardware to store that info.
Well buying 220pb of storage space is really not the problem nowadays, at least from a cost perspective. But you need to maintain all that stuff. What happens when a disk goes broke, what if a network switch goes broke, how do you update your software at scale and so on.
I think it would be best to put it on AWS S3 Glacier Deep Archive for about 2.5 million dollar per year.
I doubt that you can do it cheaper. To permantenly archive the whole internet is an ongoing task that basically requires a small company, thats why Internet Archive (169 employee) exist (which costs more than 2.5 million dollar per year). It is not done with buying a huge bunch of disk. Setting up a permanent stream to S3 would be the only solution I can think of a single human could handle.