2008, the year we all became aware of power and cooling issues

It's highly likely that a major disruption to corporate computing operations is going to come from increasing energy requirements and the actions we need to take in order to minimize their impact on the services we provide.  It's not just that energy costs are rapidly rising, but the use of that expensive energy is rising along with it.

Large scale data center operators are already heavily engaged in these discussions as evidenced by an interview Searchdatacenter did with Jeff Lowenberg of  The Planet, a hosting company in Houston, TX.  Jeff talks about a number of interesting things, including how they caulk leaks in the floor to keep from losing cold air and how they maintain their diesel generators. The last part on maintaining diesel fuel probably has excellent tips that anybody depending on large generators for backup electricity needs to know.

There's going to be new concepts, vocabulary  and acronyms to learn, such as air mixing,  hot aisle, cold aisle, chiller, CRAC (computer-room air-conditioning system), close-coupled cooling,  PUE (Power Usage Effectiveness)  and  DCE (Data Center Efficiency).

The good news is that fairly simple things can be done to improve the situation, without having to take more extreme measures as relocating to Iceland.  Dell's Dr. Albert Esser, who wrote today on Inside IT, was also featured in a recent article on the Computing site, talking about how temperatures in data centers can be kept warmer than people commonly think.   This article in CIO magazine also has some fairly simple ideas for more efficient cooling.

One of the biggest hurdles we face is getting senior management engaged.  This recent survey by the Uptime Institute (you've read about them if you read the other links in this post) contains fascinating information about the awareness of power and cooling as an issue. Many readers will likely identify with their findings that two thirds of those polled said their companies do not C-level sponsorship for green policy or governance mandates.  FWIW, The Uptime Institute puts on seminars for high density cooling, as well as other energy topics.  This podcast of an interview with Robert Sullivan is an introduction to those seminars.  Not having been to one of their seminars, I don't want this post to be perceived as an endorsement of their seminars - but if readers have comments to make about them, I'm more happy to post them.

I have a feeling this is going to be a huge deal and there will be lots of confusion and many opportunities for people to help each other out.  What are you seeing?  Is this stuff on your radar yet?  Is it front and center in your company or are you going it alone?  

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aikiwolfie said:

Actually a lot of folks were well aware of power and cooling issues a long time ago. Especially gamers who have for a long time now been pioneers in better cooling solutions and at the same time always struggling to squeeze more usage out of the available power they have without running up a bill they can't pay.

I know that doesn't exactly compare to a massive data center. But the question remains. Why did it take so long for everybody else to catch up?

Marc Farley, Inside IT Lead Blogger said:

Hey Aikiwolfie,  thanks for commenting.  I think the answer to this is simple - everybody always has challenges to deal with and priorities for their work.  Large data center managers actually have been dealing with this for several years, but there are lots of other folks working in IT organizations that have had other fish to fry.  It's becoming such a huge economic problem now, that its becoming a primary consideration for many decisions where it has been ignored before. 

FWIW, power and cooling concerns for mainframe systems go back several decades and include intricate water cooling methods and raised floors and all sorts of expensive air conditioning equipment. So, in that sense it's not news.  There is no doubt that gamers have been looking at the problem for many years now too, but in a different way. Gamers have had to deal mostly with cooling their CPUs and less with the cost and availability of power. (my assumption here because I'm not a gamer)

An analogy is how you build roads for cars.  What sort of road do you build for race cars - knowing that there won't be that many of them, but they need ultra high performance?  And what do you build for the thousands of commuters that need to travel en-masse every day?  The data center people have a different mass-energy problem to solve.  Their energy problems are having a much larger impact than gaming systems. Now maybe if everybody was a gamer we would have realized this a few years ago. As it is, the Uptime Institute has been trying to draw attentiuon to this problem for the last 8 years or so. 

The cosmetic steps to power reduction will come relatively easily and painlessly.  Good stuff to do, but significantly more significant savings are available.

The more significant change require changes to business models or technology strategies.  An example is PC virtualization.  A company willing to change their PC strategy can realize 100-200 Watts of savings per PC.

Marc Farley, Inside IT Lead Blogger said:

Well said, Pete.  There is no doubt that there are huge energy savings to be had from using system virtualization technology.  When you see a server room with a lot of empty rack space where lots of legacy servers have been consolidated onto a few virtualization servers, it really makes an impression. 

BTW, Pete has a blog called Storage Effect. 

http://storageeffect.com     

We've measured some great numbers here in the TechCenter on the server side.

 8 to 1 consolidation of workloads that were driving the older servers at 30% CPU utilization - so not your typical 10% or lower numbers.  We were able to drive this same workload on a single Dell PowerEdge 2950 and show over 2,000 watts of savings.

You can see the results and download the full paper on our site.

Marc Farley, Inside IT Lead Blogger said:

Scott,

Good add!  The paper you linked to is excellent.  That reminds me -  there is a lot of stuff on the TechCenter that blog readers might want to see.
       
 

I agree with Aikiwolfie in so far as a lot of people have been thinking about this for a long time. As you are probably aware COPAN Systems set out 6 years ago to build a platform for long term data retention that dramatically reducing power and cooling burden in the data centre. With Enterprise MAID technology and Power Mananaged RAID a data centre manager now has the ability to save 6x the floor space and 4x the power utilization.

IMHO, for data centre manager's worldwide who have the requirement to "do more with less", the adoption of Enterprise MAID is the answer for todays and tomorrows data centre storage growth. This technology enabler will allow them to build both defensive and offensive storage strategies moving forward, not only dramatically reducing operational costs but also adding competitive advantage to their business through improved operational agility.

If you are defining a storage strategy for the next 12 - 24 months, its not a question of if, but when you will be embracing this kind of technology.

BTW, top blog as usual old chap :-)

 

Marc Farley, Inside IT Lead Blogger said:

Hi Paul,

Another friend of mine, Paul Boulay, an architect at Pillar made a great comment - (I heard it 2nd hand).  It apparently went something like this: 

The fact that the energy savings between at rest mode and peak mode is only approximately 15% (for most storage systems) means that there is a great opportunity to improve the situation. 

 

I'd say he agrees with you and so do I.

 

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