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Traditional ways of distributing power to the racks are being constantly challenged, with power densities, as well as power consumption costs amongst data centres, constantly rising.

A recent study conducted by IDC found that the number one challenge facing data centres today is that of power and cooling. In this study, more than half of the respondents are taking a serious look at how to reduce data centre costs by controlling power consumption. In addition, an EPA study mentioned that the power consumption costs of a data centre can account for as much as 30 per cent of a company's IT budget.

This paper discusses the considerations that need to be made while choosing the appropriate power distribution products at the rack level. Interestingly enough, several of these considerations also help data centre operators manage and control the largest portion of data centre power consumption, which are the actual IT loads.

The paper discusses the following five major power distribution considerations for data center racks

• At what voltage do you run all the IT equipment?
• What electrical circuits do you bring to each rack?
• Number and type of outlets on the rackmount power distribution units
• What features do you look for within your rackmount power distribution units?
• Remote management of power distribution