The Hot Aisle Logo
Fresh Thinking on IT Operations for 100,000 Industry Executives

All Posts Tagged With: "DC Power"

There are a lot of them around, Data Centres. A few of them are designed and operated very well and deliver great Power Usage Efficiency. Some could do a bit better, perhaps an airside economiser or two, or some hot or cold aisle containment, or maybe some DC power. Some are just a nightmare and […]

Continue Reading

Data Centre design is an evolutionary process and we can see the first signs of significant change in the latest sites. Co-generation, liquid cooling, cloud computing, high density are all likely to feature in the 2020 Data Centre. How are you placed with your existing Data Centre investments to take advantage of these changes? Will […]

Continue Reading

Around this time, analysts at ESG pull together a ten point list of predictions for the coming year. One of my areas of coverage and of expertise is in the Data Center around power, cooling, reliability and economics. So what’s different this year from prior years? Strengthening fundamental drivers will likely make 2010 materially different […]

Continue Reading

Back in 2008, Steve O’Donnell wrote an article here on The Hot Aisle explaining one of the challenges he set his team during his time at BT, the difficult task of getting Asset Management right. To summarise, Steve kicked off an audit of the whole estate, and where owners couldn’t be found for kit on the […]

Continue Reading

Here is a video from my friend Professor Masood Amin @Massoud_Amin who is the world authority on Smart Grid. If we want to save the planet from global warming, prevent terrorists shutting down our economy and prevent catastrophic failure of our power distribution systems. This is the template of what we need to do and […]

Continue Reading

Over the last few months I have been thinking about data centers, how we power and cool them and what we put in them. I’ve been looking at what the very largest consumers of IT infrastructure do with their data centers compared to industry norms. The first take away is that almost none of them conform […]

Continue Reading

Fujitsu just announced a new blade server system using a custom designed motherboard optimized for the form factor of the chassis so that they have been able to fit 18 blades with two CPUs each into a compact 10U package. This contrasts with the rather weak Cisco design that manages to fit all of 6 […]

Continue Reading

I spend a lot of time thinking about data centers and how to make them better, more efficient, more reliable, higher performance , easier to maintain and cheaper to run. Lots of very smart and experienced people have been doing the same for many years and whilst there is no single, agreed best practice, model […]

Continue Reading

Last year I spoke to Ron Croce COO of Validus DC Systems about their unique approach to Data Center power provision. He and I both share strong backgrounds in power engineering and the certain knowledge that the way that data centers are powered today is fundamentally flawed. Today’s data centers take power from the grid […]

Continue Reading

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 […]

Continue Reading

When was the last time you saw a Data Center press release that didn’t make some green or energy efficiency claim? I guess because data centers are such huge energy hogs vendors must worry that building a new one will raise the hackles of the environmentalists. Nevertheless PR agencies should really stop dressing up stories […]

Continue Reading

Today I spoke at the Sustain IT, Green IT Conference in Central London,  The topic I chose was Green IT through Discipline and Hygiene. My conference notes as well as two of the other presentations are available here on my .mac Public Folder.  (I love the whole .mac Web experience, like most things Apple it is just […]

Continue Reading

The 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 Reading

DC Power in Data Centres The discussions amongst Data Centre specialist about the relative benefits of AC and DC are by far the most heated. In my opinion these are mainly driven by the technology that the protagonists are most comfortable with. The 20th Century Data Centre guys are all into AC, it is what […]

Continue Reading

Where does all the power go? Electrical power generally originates from a machine that turns water into steam to turn turbines (or HEP, Gas Turbine) – in all cases some form of original energy is used to drive a generator set. Typical coal, nuclear or oil fired power stations generate steam to drive the generators. […]

Continue Reading

Steve O’Donnell is Chairman at KSBC plc, at Preventia a UK-based Security systems reseller and at Lanix a UK-based Managed Services vendor. He was CTO at Amlin (Lloyds of London Underwriter) and an analyst, advisor and consultant for ESG in the technology space. He was Chairman and CEO at GreenBytes (acquired by Oracle) a Providence RI based manufacturer […]

Continue Reading
«