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All Posts Tagged With: "Maintenance"

Looks are deceiving, and in the data center they can be confusing. If you are doing a good job your Power Usage Efficiency (PUE) might get worse! Energy consumption in the data center is the result of two interactions: the cumulative IT Load from all the information technology hardware combined with the facility power and cooling […]

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Yesterday Chris Leahy (my Technical Facilities Manager) and I were agonising over why we had low plenum pressure in our Data Center and why we were seeing symptoms of hot air trapped in the roof void. We looked at all the normal stuff: Leaks in the plenum space Badly sealed floor Cable access holes improperly […]

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The problem with computing is everyone wants to make it uniform – fit it into a neat box, categorise it as ‘all the same’, make it autonomic, self-managing and move on. In fact, IT is anything but uniform, so these simplistic approaches fall at the first hurdle. Smart CIOs understand applications need to be treated […]

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Recently I spoke to David Emery a friend and colleague from my time at Coopers & Lybrand. He is now working on a major social media initiative for a global mobile telco. I was interested in David’s perspective as he has been working on a set of solutions to process log files at enormous scale. […]

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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 […]

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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 […]

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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 […]

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Recently The Hot Aisle conducted an online survey asking the question – “How do you currently choose where to place equipment in your data centre?” As usual we got a very large response to the survey with 5,580 respondants. The results are in and it shows quite clearly that equipment placement is (to say the […]

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I just picked up a neat blog post by Martin Glassborow (@storagebod) discussing a double disk failure in a RAID 5 array which (apparently) caused lost data. RAID is Redundant Array of Independent Disks and the number refers to the type of protection offered. RAID 5 means that there is an extra disks in the […]

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It’s a pretty good question given the perilous state of the US power distribution network, the ever increasing load and the ever increasing dependance (around the world) for US based IT and network systems. My friend Professor Massoud Amin (the global authority on what is wrong and how to fix it) is running a free […]

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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 […]

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We are all trying to fix the unfixable in the Data Centre. How do we get more cooling capacity from sites we built a decade ago for low power density applications? One of the biggest problems is that everyone is trying to work against a basic law of physics; hot air rises, and cold air […]

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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 […]

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David Strom writes in the New York Times about how to stop your commercially sensitive data from falling into the wrong hands: As more small businesses rely on e-mail and instant messaging for their communications, they would do well to use a number of inexpensive methods to preserve privacy and ensure that messages are read […]

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I got an email this afternoon, from a great friend of mine and fellow blogger Jonathan Davis of DNS Europe that I wanted to share with the readers of The Hot Aisle. Jonathan and I used to work together – twice actually – (Coopers & Lybrand and Message Central). I took him on as a […]

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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. […]

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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 […]

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This is an essential piece of equipment in a data center. A device designed to lift and hold servers and other rack mounted equipment ready to install into their home rack. Without one of these (or something similar), it is just a matter of time before you drop a server and injure yourself or a […]

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  Dry coolers are used in many air cooled refrigeration systems. In case of low outdoor temperatures, outdoor air can be applied for cooling applications. In dry coolers, large fans create a forced airflow along air-to-water heat exchangers. Subsequently, the water circuit can be used for cooling of data centers, office buildings and industrial processes.  Dry coolers play an important […]

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So we have a sub prime credit crisis that looks like it might turn into a global recession. IT is expensive and highly visible as well as often seen as non core. If you don’t get your budgets cut this year then you are very lucky and very unusual. I thought that you might like […]

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The picture shows some Aspirating Smoke Detection Pipe located above an air handling unit. It is not unusual for unsupervised and inexperienced painters to paint over the pipe, blocking the microscopically small aspirating holes. These holes are used to suck samples of room air into a detection unit that can act as an early smoke […]

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If, like most of us, you use a diesel generator as a backup power source during electrical outages, you need to understand something about Data Center engines and how to keep them running sweetly, starting automatically and reliably. It is horribly career limiting to spend your shareholders money on some equipment that you only need once every […]

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Zinc whiskers, although a catastrophic problem, are not new (they were discovered in 1948 by Bell Labs). They grow on many zinc coated components and structures commonly used in Data Centers. Zinc coating is used to slow the rusting of steel components. There are two types of zinc coating, Hot Dipped Galvanized (HDG) or electroplated. Only one […]

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Floor loading is a badly understood issue in Data Centers. Not just in the place where the equipment eventually ends up but also en-route from the loading bay to the final resting place. OK, so lets start looking at the problem. Most data centers have a raised floor made of specialist tiles held up on struts and […]

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You might think that your data center is under the spotlight, constantly monitored, secure and well designed but what if I told you that typically the second most common cause of catastrophic failures (after electrical) in your Data Center are water leaks? Water can come from three main sources: Leaks inside the Data Center from […]

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