The picture to the right is a data centre that is not up to scratch. The things required to bring a data centre up to par is exhaustive (and I have walked into data centres like the one above and wondered how they keep on working) However, this is not about that and standards and checklist exist that can be used. This provides a list of often overlooked items required in a data centre. They are related directly to experiences I have had which don't seem to be covered in the standards (or are conveniently overlooked). Many of the things and items referenced here in the post about the NOC are also relevant.
View the list of life savers here.