All Posts Tagged With: "Temperature"
Our atmosphere (the air around us) is made up of gasses consisting of nitrogen (78%), oxygen (21%), carbon dioxide (0.3%) and water in the form of vapor (humidity). The amount of water in the atmosphere is measured as a Relative Humidity (RH)
Data Center air should contain the proper amount of water vapor to maximize the availability [...]
I read a very interesting article from fellow blogger Christian Belady, who is Principal Power and Cooling Architect at Microsoft.
Christian decided to take the PUE challenge and see if he could build a data center with a PUE of one! That is to have all of the power delivered to computing equipment and none at [...]
Recently we have been writing a lot about how hot-aisle/cold aisle containment. It is important to be aware this strategy, fire detection and protection requires special attention.
A recent article in Search Data Center gives some good advice:
Hot-aisle/cold-aisle containment – a variation on the traditional data center best practice of hot-aisle/cold-aisle design – is a way for data [...]
Today we are going to look at how fire detection systems can be used in Data Centers to prevent catastrophic loss and damage; we will focus on Very Early Smoke Detection Systems, (VESDA – Very Early Smoke Detection Alarm).
Without an efficient and safe environment, there is no way to be assured of business continuity. To [...]
IT Infrastructure specialist Richardson Eyres recently issued a press release to help drum up some consulting business in the Retail market but make some generally applicable and interesting points worth looking at.
Even though most organizations are making energy cuts a top priority for 2008/9, many are not taking green issues seriously enough and are adopting a do-it-yourself [...]
AVIVA (aka Norwich Union) is set to open its third data centre - Data Centre 3 (DC3) at the Broadlands Business Park near Norwich, UK this September. Although the site uses some modern design principles to minimize energy use, AVIVA have been far too conservative with the design and the opportunity to really go green has been missed.
The site [...]
HVAC Economizers (sometimes known as air-side Economizers) are useful for data centers which are located in regions of the world where the outdoor temperature is lower than the desired data center temperature (for at least some of the day or year) and the outdoor humidity is mild. Economizers save energy by cooling buildings with outside [...]
Continue ReadingWay, way back in the stone age (whilst I was a student) I worked in the Edinburgh University Computer Labs keeping all of the hardware going. I had got a report of a DEC PDP 9 (drop me a mail if you know what one of these is) that kept restarting every few days all [...]
Continue ReadingThe consequences of data center failure can be pretty catastrophic for your business, so unsurprisingly, you will have very high expectations about availability and reliability. Unfortunately for many of us, our expectations will not be met by reality. Very often the system that is our data center facility is significantly less reliable than we might [...]
Continue ReadingThe thing about data centers is just how much power they use. This one in Cardiff, Wales uses about 20MW of power and has huge strings of batteries storing power to drive the UPS units. The batteries are kept in dedicated battery rooms that are air conditioned to keep the cells cool and maintain a [...]
Continue ReadingSeparation of Hot and Cold Aisle
The photograph above was taken in BT’s Rochdale Data Centre. It shows the use of curtains to separate the hot and cold aisles, thereby reducing the amount of hot air that mixes with cold air from the plenum floor and dramatically increasing cooling efficiency. Inside the curtained off [...]
Continue ReadingHow did we get to the modern data centre design? Why do most data centres look the same? Why are they so inefficient in how they consume electrical power? Why do they typically have a raised plenum floor and air handling units that keep air at fixed temperature ranges and humidity levels?
I guess the first [...]
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