We look at the construction and design of both types and
present results demonstrating that high-density DCs are a better choice for reducing
the owners cost. These results apply to new construction and mostly-unconstrained
retrofits. Densities of 1000 watts per square foot of work cell are being achieved
with good efficiencies. Modern designs of 200 to 400 watts per square foot of work
cell are much more common, but cost more. Costs of the architectural space, power
systems and cooling systems are reviewed as are the operational costs for these
systems. High-density DCs do cost less. The challenges for the high-density DC are
also called out and suggestions for successful operation are made.
three-dimensional software tool for simulating cooling performance of data centers. It uses the state-of-the-art computational fluid dynamics (CFD) techniques, and is applicable to both raised-floor and non-raised-floor data centers.
information necessary for planning the physical installation of a IBM System z10 Enterprise Class (z10 EC). It includes physical specifications, power and cooling data, cabling