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eThinker - MCR's newsletter
December 2011
In this stiff competitive era, every company is vying for a greater market share. The competition can be succeeded mainly by developing a loyal customer base. There is no business without a Customer.
For a business to exist, it mainly depends on customer satisfaction. A product with best quality and a competitive price are a must to please the customer but definitely not the only parameters that result in customer satisfaction. Even after delivering the best product, there are unhappy customers.
Most often clients are not technical experts, but their satisfaction lies in their expectations. The secret to success lies in managing their expectations effectively.
Full Article
All of the electrical power delivered to the IT loads in a data center ends up as waste heat that must be removed to prevent overheating, and virtually all of it is air-cooled. Since a data center may contain thousands of IT devices, the result is that there are thousands of hot airflow paths within the data center that together represent the total waste heat output of the data center; waste heat that must be removed.
Room-based cooling is the historical method for accomplishing data center cooling. In this approach, one or more air conditioning systems, working in parallel, push cool air into the data center while drawing out warmer ambient air. But this approach is effective only as long as the power needed to mix the air is a small fraction of the total data center power consumption.
Unfortunately, the power densities of modern IT equipment are pushing peak power density to 20 kW per rack or more, where simulation data and experience show that room-based cooling dependent on air mixing no longer functions effectively.
To address this problem, new design approaches are emerging that focus on row or rack based cooling. In these approaches the air conditioning systems are specifically integrated with rows of racks or individual racks. This provides much better predictability, higher density, higher efficiency, and a number of other benefits. In this paper, the various approaches are explained and contrasted.
Full Article
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