S3 is already redundant - it virtually guarantees no data loss and mirrors your storage across multiple data centres.
You're also completely ignoring the costs of hosting this stuff, the computers they're in, redundant network switches, failed disks over time, and administration costs to rack and stack failed drives plus all the risk associated with your redundancy going wrong. You're also assuming your hard drives will be able to handle the performance needs. Not to mention this is one site - no DR.
So, Amazon S3 at $7.5k a month for 100 TB is $90k annually with RIDICULOUSLY high redundancy and known performance. Reduce it to 99.99% availability (about what your setup with dual drives might be if you run it well) and you're at $60k annually.
You really are going to host fast, reliable 100 TB for under $60k? Betting your business on it?
You're also completely ignoring the costs of hosting this stuff, the computers they're in, redundant network switches, failed disks over time, and administration costs to rack and stack failed drives plus all the risk associated with your redundancy going wrong. You're also assuming your hard drives will be able to handle the performance needs. Not to mention this is one site - no DR.
So, Amazon S3 at $7.5k a month for 100 TB is $90k annually with RIDICULOUSLY high redundancy and known performance. Reduce it to 99.99% availability (about what your setup with dual drives might be if you run it well) and you're at $60k annually.
You really are going to host fast, reliable 100 TB for under $60k? Betting your business on it?