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Air-side free-cooling: direct or indirect systems and their impact on PUE

Posted By Robert Tozer, Operational Intelligence Limited, 01 October 2015

There is a general perception that direct air systems are more cost efficient and hence the default option. However, providing the design incorporates good air segregation, recommended ASHRAE equipment environmental conditions and adiabatic cooling of the outdoor air, for most cities warmer than London, the indirect air systems are considerably more efficient than the direct air systems. This is because many more hours of free cooling can be achieved with adiabatic cooling without affecting the indoor conditions. Furthermore, zero-refrigeration in most of the world is possible with this solution. For cooler climates, direct systems are only marginally more efficient.

Often when data centre free cooling is discussed, people assume this means direct fresh air cooling. However, in climates warmer than London, indirect air systems are more efficient than direct air systems and can allow refrigeration to be eliminated and considerably reduce the electrical plant sizing requirements. Use of adiabatic evaporative cooling on the outdoor airstream allows free cooling to be achieved for many more hours in the year when there are hot, dry conditions. Further detail on the application for free cooling in data centres is available in our technical papers.

 

Tags:  air management  Cooling  Date Centre  Location  London  pue 

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Multi skilling in the Data Centre Industry

Posted By Anne-Marie Lavelle, LDeX Group, 12 June 2014

 Multi skilling in the Data Centre Industry

The ‘skills gap’ has unfortunately become synonymous with the technology industry with 2.5 million IT jobs expected to go unfulfilled by 2020 according to a recent infographic from IT recruitment firm SmartSource. For clients dependent on having low latency resilient connectivity to their servers, infrastructure and systems at all times, not to mention reliable data centre and network support, this is a particularly worrying fact.

Staff need to be able to have the adequate skills, knowledge and expertise in order to deal with any client query that may arise and be able to cope and resolve problems promptly in the unlikely event of a power outage. As 75% of data centre downtime is caused by some sort of human error, I felt it necessary to put this blog together.

Lack of experience

Many technicians who I see looking to work in the data centre environment don’t possess the necessary experience with servers, electrical and operating systems that one would expect or else they are not familiar with the different types of equipment which needs to be installed and worked on. Frankly, this is not acceptable making the search for high calibre engineers all the more difficult.

The necessity to up-skill and retrain

In the current climate, there is a reliance on existing staff to up-skill and attend additional courses in line with the latest developments. Technology has moved on at a rapid pace outpacing many of those working in the industry signalling the need to develop existing skill sets. Whether it is a short course in data centre design or an MA in a specialised area such as wireless networking, it is paramount to keep up to date in order to progress to a management position in the data centre.  I find that by staff going on to attend and pass these courses showcases a strong aptitude and enthusiasm to their employer for self-development and career progression. What is promising to see is that 57% of IT industry firms intend to train existing staff in order to address these requirements.

Combining technical aptitude with relevant experience

Another positive development is that the UK government has taken light of the situation by allocating much needed investment to programmes and courses focused on Science, Technology, Engineering and Maths (STEM) in recent years giving students the necessary knowledge and aptitude to work in a high tech environment. These courses coupled with the increasing number of internship programmes that are regularly offered will make candidates more marketable possessing everything that they need to succeed.

The LDeX viewpoint

At LDeX Group, the team is regularly trained to cope with the increasing demands that are expected of the company. On the data centre side, technicians would either have trained or be completing technical courses such as CompTia, MTA, CCNA, CCNP, Electrical and Mechanical Engineering. On the finance side, staff are completing qualifications from the Association of Accounting Technicians and ACCA. Since joining the company, I have been given the opportunity to study electrical engineering and will attain my qualification next year and hope to go on and do more courses to keep up to date with everything.

Practical training coupled with the right aptitude and enthusiasm is essential in being able to cope with tasks outside of one’s comfort zone to deal with client demands. The knowledge base and skillset that was required a decade ago is expected to be supplemented with additional training in keeping up with what’s happening in the industry. Although there is still a long way to go, strong in-roads are being made by the government and employers in the industry – watch this space!

Jesse South – Data Centre Supervisor at LDeX

Tags:  connectivity  Datacentre  Date Centre  disaster recovery  infrastructure  LDeX Group  Location  Skills Development 

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Own or Out-source, Build or Buy?

Posted By Steve Hone, 01 August 2012

These are questions I am often asked, I came across this article the other day on the subject and wanted to share it with you, Posted originally by Nicholas Greene a year or so ago but still very relivent today……..

For one reason or another, your enterprise organization's got some big computing needs right over the horizon. Maybe you're setting up a new consumer payment or accounts management platform. Maybe you've just developed the next best online game, and you need servers to host it. Maybe you just need some additional storage. Whatever the reason, you're gonna need a Data Center. One question remains, though- should you outsource, or build?

Constructing a Data Center's no mean task, as you well know- it's a positively herculean undertaking which brings with it overwhelming costs and an exhaustive time commitment just to construct it- never mind maintaining it after the fact. If you're going to build a Data Facility, you'd better make damned sure your business can handle it. If you don't, you'll flounder- it's simply reality.

There are a lot of things you have to consider- cost and budget, employees, time constraints…you know the drill. Today, we're going to take a closer look at the first entry on the list-the reason for setting up a facility- and use it as a springboard in determining when you should outsource, and when the management of a facility should be placed solely in your organization's hands.

Ultimately, you have three choices- it comes down to whether or not you want to outsource to a multi-purpose data vendor, construct your own purpose-built facility, or hire a contractor to custom-tailor a facility for you. Before we even get started, I'm going to say right out the door that most businesses are better off going with the first or third option.

To determine what choice is right for you, there are a few things you should consider. What does your business do? What shall you be using the facility for, and how intensive will your needs be? How important are the tasks you require the facility for? Are they key components of your business strategy, or of one leg of your corporation?

What your business does can play a considerable role in determining whether or not you'll run your own servers. Is your organization solely based in the technology sector, or is your primary area of expertise in finance. Are you a hardware or software vendor, or do you primarily sell consumer products? How large is your IT department? How well-funded are they? All of these questions should be taken into account, as they can very well help determine right out the door if your business is even capable of managing its own facility without some significant restructuring, let alone building one.

Of course, that's only the first thing you need to consider- what your organization does by no means restricts it from constructing its own centers- Facebook's a prime example of this. Of course, in their case, they have their own reasons for building their own servers- they are, after all, the world's largest and best-known social network.

As I've already stated, what you need the facility for also plays a very important role. If you are, for example, a cloud-based SAAS vendor, it should go entirely without saying that you should be building and managing your own facility. As a general rule, if you expect to turn a significant profit from your facility, or the need met by the facility comprises a key aspect of your business model, you should look at running your own- or, at the very least, get yourself a custom-built data center.

Bandwidth goes hand in hand with purpose. How many gigabytes of data is your product or service going to use? How will the costs of development and management stack up against the fees you'd be paying if you outsourced? Will you turn enough of a profit to merit setting up your own facility?

Do you foresee yourself needing to expand your facility in the future? How will you do it? Scalability's an important concern, and if your business can't afford to expand- or virtualize- outsourcing might be the answer. Size matters, folks, and the smaller your business, the more likely you are to need to contract out, rather than run your own center.

Finally, there's your staff. Is it more economical to train and hire a whole team of new employees, or simply contract out to an organization to manage things for you?

Every business is different, and not all organizations are built equal. What I've listed here, all of the information; it's little more than a guideline. Ultimately, the choice of whether or not to outsource rests entirely with you.

Tags:  building  central  comms  cooling  Date Centre  efficiency  Location  planning  PUE 

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Why Google’s Data Centre is Not Like Yours

Posted By Steve Hone, 01 August 2012

Does your company operate a data centre? It's likely you do, since any organisation that is large enough needs to have its own servers. Yet while you probably purchase from Dell or HP and throw them into a room with a whole bunch of temperature control units, Google decided long ago to rethink the concept of the data center.

They started this process with the servers themselves. They purchase all of their own components and build the servers from scratch. Why? Because the company feels that they can make a better server unit that fits their needs. Instead of a typical server, you get something that looks more like a homemade PC project.

There are tens of thousands of these custom-built severs located around the world. When you do a search or use any Google product, the company takes your IP address and routes you to their closest data centre in order to provide the highest speed (lowest latency) possible. The company has realised the correlation between speed and customer satisfaction and has therefore built enough data centres to accommodate.

The data centres are also configured differently. In order to optimise space and cooling needs, the company packs servers into shipping unit that are then individually cooled. Google's experts have determined that this is the best way to efficiently economise.

Take a look at this tour of such a facility. http://youtu.be/zRwPSFpLX8I

So why are Google's data centres so special? The answer is efficiency. The company uses a ton of power to keep these servers running and doing so at an optimal temperature. The company tries to locate these facilities near hydroelectric power because of its lower cost. It also explains why Google has such an interest in renewable energy and last year entered into a twenty year agreement to buy wind power. The company knows that its power needs are going to increase over time, and this is a way to hedge the fluctuations in energy prices over the years.

Tags:  building  central  comms  cooling  data  Date Centre  efficiency  Location  PUE 

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Nothing Worth Having Comes Easy !

Posted By Steve Hone, 01 August 2012

So your thinking about building a Data Centre are you,.... well how difficult can it be !!!, before you jump in feet first here are a few things to consider................

You dont have to scratch to far under the surface to realise there's a lot that goes into running a data centre- and the logistics can, quite frankly, be overwhelming. Paying attention to the metrics- to all the little details- can make or break a facility. If an Operator isn't careful, they can easily find themselves left in the dust by their competitors. Not surprisingly, there's also a lot that goes into establishing a data centre, as well. If you're thinking of having your business start one up, you need to ask yourselves a few questions first. If you don't, the results could be disastrous.

The Reason:

Why are you setting up a data centre? What do you have to gain from it? If you do set it up, what will you use it for? What sort of services will it provide? Is it going to primarily be used for consumer information, or for business data? What sort of a profit do you stand to make? You need to consider very, very carefully whether or not setting up a data centre is the right choice for you before you do it- and what purpose the facility will serve as it may well prove to be more cost effective to outsource to a Colocation, Hosting or MS/Cloud provider instead.

The Location:

Aside from the purpose of your facility, its location is probably the most important consideration. Will it be a domestic centre, or an international one? What sites are available? What sites best suit your needs? The planned purpose of the facility will have a marked impact on where you situate it.

Cost:

Another question you need to answer before setting up a facility is whether or not you've got the budget to do so. How much will your data centre cost? What sort of upkeep will be required to keep things running? What about power demands? You're going to need to budget everything very, very carefully before you set up your new facility- plan out how much money it'll make you, and compare that against how much it's slated to cost you.

While there are certain steps you can take to reduce the cost of running the facility- such as greener energy and hardware alternatives- you still need to be certain the new centre won't break the bank.

Employees and staffing:

What sort of outside help will you be bringing in to help set up the data centre? Are your employees properly trained to manage such a facility? Can your IT department handle the Cloud? Do you have the staff base to manage things now, or are you going to need to bring in new hires in order to handle the workload?

Space:

Space is another of your concerns- before you go about purchasing your hardware, figure out how much space you need- and then how much space you've got. If you've done your homework and found a good location, those two variables should be pretty much the same. Consider the options you have for reducing how much space your server takes up- new, compact modular server designs are just one of these options.

The Hardware and Equipment:

You're going to need to figure out where you're getting your hardware from, and what sort of hardware you'll need. Be sure to buy new- skimping on the servers is one of the worst possible things you can do. More than anything else, you'll need your hardware to be both durable and reliable. Go for those qualities first, and consider innovative solutions as secondary concerns.

Hardware's not the only thing you'll need to worry about, either. You'll need equipment aside from the servers- server racks and office supplies are one example, and if you're constructing the facility from the ground up, you'll need to consider the supplies you'll need to build it, as well.

Cooling:

How are you going to keep your servers running cool? While the traditional approach works just fine, it has a tendency to rack up a downright terrifying power bill- consider more innovative alternatives.

Network Connectivity:

This should really go without saying. What sort of network provider are you going to be making a deal with? How much bandwidth is your facility going to need? How much will it cost? Can the physical infrastructure of your facility and the surrounding area keep up? You need to make sure you've got the right provider and hardware for your network, or your clients are going to be experiencing a great deal of latency- which could ultimately cripple your centre.

The Software:

You're also going to need to iron out the details of your software. What sort of management platform are you going to use? Will you be dealing with a vendor, or developing your own in-house platform? If you're choosing a vendor, make sure you choose a good one-

Power:

Finally, how much energy will your data centre use? What will the power efficiency of the facility be? How can you improve on this efficiency? How much power should you provision for the facility? Make sure you've got this ironed out in advance- it'll cost you a very, very large sum if you end up having to reprovision.

 

 

 

 

Many thanks to Nicholas Greene

Tags:  budget  building  central  comms  cooling  data  Date Centre  Location  planning  power 

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The Importance of Location

Posted By Steve Hone, 01 August 2012

Location's important- that's an unwritten rule of…well, pretty much everything. The area in which a business is situated can affect both its clientele and financial stability. The place one lives in can have a marked effect on one's psychological well-being. The location of a city is directly related to how the city looks and feels. We all know that where you're building your data center is an important consideration when you're planning to build a new one…

But exactly how important is it?

Honestly…you should probably think about where you're building before you think about anything else. When you're working out where to build your Data Center, you need to keep in mind pretty much everything about the facility. Your plans, as they are, need to be custom-tailored to the climate and environment in which you're crafting it.

A facility constructed in Norway, for example, might make use of environmental, ambient cooling from the fjords or the cold winds. A data center deep in the heart of Brazil needs some method of beating the heat; requires a means of mitigating the extreme temperatures to avoid overheating the facility, while one constructed deep underground in an old mine shaft might be able to take advantage of cooler temperatures beneath the surface of the Earth.

Do note that too cold is just as bad as too hot, just as too dry is just as detrimental as too damp. Finding a happy medium is everything when it comes to operating a facility- how you go about finding that medium is almost entirely dependent on where you've set up shop.

Of course, environmental climate only shapes one aspect of your facility- there's also the matter of political climate.

Different countries have different laws. The EU's a lot more stringent about the protection of consumer data, while China's still stumbling over its rather restrictive data monitoring policies. Some countries are strapped for trained IT personnel, while others are simply overflowing with them. This, too, is going to colour your facility. Will you have to bring in outside help? How will you deal with government agents and the police force? What does the law of the nation dictate in the event of a data breach?

Obviously, the policies with which you operate your facility should be adapted to the nation it calls home.

Yet again, there's still more to consider.

Networking and power consumption are two of the most important elements in the data world- and even how these look will be strongly affected by your facility's location. You need to make sure you choose to construct it in a nation with a strong power grid, and a networking infrastructure that can handle the oft-severe demands placed on it by these mammoth facilities. Can the grid support the sheer wattage you require? Will you need to look into alternative power sources? Does the location incur too much latency on your facility's network operations?

And what about employees who have to commute to work? How are the roads? The transit systems?

A lot of folks understand that location is an important consideration for a data center- but many of them don't actually realise that where your facility's constructed determines everything about your facility- from its staff, to its clients, to its policies, right down to the very hardware it uses to operate. Choose wisely and double check everything as mistakes can be costly and not always easy to fix once made. - As my father always told me as a boy "it's better to measure twice and cut once”

Tags:  central  data  Date Centre  Location 

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Data Centre Hotspots outside Europe

Posted By Steve Hone, 01 August 2012

The Data Centre Industry in Europe just keeps on growing but where else in the world are we seeing growth hotspots…..

Lots of countries across the world are starting to realise just how important data centres truly are. They're pulling out all the stops, and doing everything in their power to bring more customers and clients in- everything from economic perks to tax breaks. Here, are some of the most promising countries and locations to look out for.

Japan: Large population? Check. Plenty of tech experts looking for work? Check. Powerful, efficient computing and telecommunications infrastructure? Check. Demand through the roof? Oh yeah- definitely. The entire Asia-Pacific region's booming at the moment, and data centres are springing up left, right, and centre. The major cities of Japan are no exception, and if you're looking to start construction on a new facility, you could do worse than the Land of the Rising Sun.

China: As you likely well know, the Chinese government is making a huge push to bring more data centres into the country, making sweeping changes to their infrastructure in order to better facilitate the massive, demanding complexes. While Chinese legislation still needs to catch up to technology, the demand- and employee base- are both there, and the governmental probably be glad to have you.

The Middle East: The word here is "demand.” Cities such as Dubai are positively begging for more large-scale computing facilities, and there's plenty of readily available labour to man your data centre, should you choose to build there. What's more, there are many places across the Middle East that actually have an impressive telecommunications infrastructure- all the better to tap into the vast demand.

India: Again, demand is key- we've already detailed on several occasions how India's exponential growth in technology and electronics is basically a waiting gold mine for OEMs the world over. What we haven't touched on is that it's also a great time for data centre operators to wire in- who do you think is going to provide the infrastructure for all those new wireless devices and internet users?

The United States: With a number of specifically designed sites popping up and the vast array of tax breaks and benefit programs recently put into place by the governments of Oklahoma and Nebraska, Silicon Valley's not the only location you could consider on your home turf. Western Washington, with its large population of tech-savvy potential employees is just one of the many spots open to you as an operator.

Canada: Canada's been listed several times by Forbes as one of the world's best places to do business, and with the naturally cool climate that persists in many areas of the country year-round, it's a sweet deal for businesses. The number of organisations pushed north by recent legislation only makes the deal sweeter, and the country is, some say, on the fast track to becoming the world's data capital. Couldn't hurt to think about getting a piece of the pie for yourself, could it?

 

 

Thank you again to Content Source:Nicholas Greene for your related article and supporting commentary

Tags:  central  data  Date Centre  Location 

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