Obviously you were so angry that you didn't even read the duplicate target question.
We don't allow this type of capacity planning questions and the "duplicate target" is meant to explain why we don't. It doesn't matter at all if this is about Ceph or web servers, databases or whatever. We can't really help in the context of our site.
That said: Frankly, your original question is terrible and a prime example why we don't allow this. With what you explained, it's impossible to come up with a suggestion.