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The Farmer’s Dilemma

A story about temperature vs. pressure in cooling management

Once upon a time long long ago, in a valley just south of the San Francisco Bay, a large truck pulled up to a farmer’s house and dropped off a thousand boxes, each of which was the same size and weight.  The farmer was puzzled to find that in every box was a toaster each with the same set of instructions.  The instructions indicated that the farmer must construct a way to ensure that, when these thousand toasters were turned on, they would not overheat and burn up.

Said the instructions, if even one toaster burns up, the farmer will have failed and be damned for eternity.  If, however, the farmer succeeds at this challenge, he will be rewarded and praised in all the land.  This was quite an odd request, but the farmer took it seriously and consulted with his smartest group of friends.  The group was comprised of the three people: a toaster expert who knew the heat output of every type of toaster ever invented, a building engineer who had designed cooling systems for office buildings, and a PhD who just happened to be the farmer’s neighbor.  The team deliberated for a few weeks and came up with a brilliant design.

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Part 1: Non-Existent Data Center Cooling Control

I am continually shocked that CIOs, data center design teams, infrastructure managers, and data center operators ignore the lack of cooling control systems in data centers. Data centers are mission critical facilities that require 100% uptime. Their cooling infrastructure requires continuous vigilant surveillance.

The cooling infrastructure for buildings, which are not mission critical facilities and can afford an hour or two of downtime, has been developed to monitor, control, and alarm when conditions become sub-optimal.  Compared to the sophistication of building cooling infrastructure, data center cooling control systems are practically non-existent.  In other words, if building cooling control systems just graduated with a PhD, data center cooling control systems would be stuffing envelopes as a college intern.

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