Having a server is not a data center. You put a server IN a data center.
Think infrastructure like a secure building (with multiple layers of physical security), redundant power grid feeds, redundant UPS / power systems, redundant backup generators, redundant HVAC, etc. Keep in mind redundant means at least n + 1. The +1 not only means you need at least one more than required to make things work. It also adds at least 125% to the cost of buying and maintaining each system because you need to have automatic fail-over systems that connect the n and the +1 together.
I can go on, but you get the picture.
Think infrastructure like a secure building (with multiple layers of physical security), redundant power grid feeds, redundant UPS / power systems, redundant backup generators, redundant HVAC, etc. Keep in mind redundant means at least n + 1. The +1 not only means you need at least one more than required to make things work. It also adds at least 125% to the cost of buying and maintaining each system because you need to have automatic fail-over systems that connect the n and the +1 together.
I can go on, but you get the picture.