Category Archives: Chill Out

Immersion cooling: That’s how I learned Portuguese that one summer, right? (updated)

No, not quite. Immersion cooling has been around for a long time. Most commonly, you might recognize the large fins on utility power transformers. They are cooled by immersion, with the heat radiated by those fins. Its only recently, perhaps the past 15 years, that the concept has been applied to personal computer cooling mainly by hobbyists trying to do something different and cool, but ultimately likely being a little disappointed as other more mainstream technologies gave them their “bleeding edge” computing performance. Even more recently, this concept has started to be applied to data centers. Continue reading Immersion cooling: That’s how I learned Portuguese that one summer, right? (updated)

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Chill Out – Battle of Aisle Containment

From time to time I have heard a lot of heated discussions on which aisle containment solution is better. No doubt aisle containment is an effective way to improve airflow management and enhance efficiency. From cold aisle to hot aisle, full to partial containment, passive or active hot chimney, each camp has its own supporters and opponents. With every operating data center having its own constraints, the key is to adopt an approach that find a balance between effectiveness, cost and what can realistically be done in that data center.  Here I outline some common containment strategies for a typical data center white space with raised floor, using downflow air supply, top return with perimeter CRAC/CRAH units. Continue reading Chill Out – Battle of Aisle Containment