Is DCIM the monitoring, collection and analysis of real-time, continuous, accurate information from an intelligent infrastructure that allows for immediate action, designed to keep the data center in an optimal state of balance between availability, efficiency and capacity?   Is it a framework for operating the data center?

What are your thoughts?

What are economizer systems and how do they improve energy efficiency?

This is the year that discussions around using outside air economization will be heard at many seminars.  The introduction of Liebert’s DSE, as well as ASHRAE’s proposal to increase the server air inlet temperatures, will certainly allow considerable energy cost savings to those early adopters. Don Beaty, DLB Associates, recently conducted a US Government seminar on Data Centers speaking to how efficient we can become utilizing outside air as an economization strategy, as well as (dare I say it) primary means of cooling a Data Center.  ASHRAE has recently released a study on areas of the United States where outside air, properly filtered and metered for gaseous and particulate contamination, can be considered as your primary source of cooling. Does your outside environment play a role in this decision?  Absolutely.  A thorough site assessment with a knowledgeable company is well worth the cost.  We all need to ask ourselves why Facebook, Microsoft and others are choosing locations conducive to utilizing outside air.

Published on March 7, 2012 | Richard Werner, Comcast, 7x24 Exchange

What energy savings can be expected for different types of economizers?

DVL and Emerson Network Power hosted a Data Center Infrastructure Management Seminar at the Microsoft Technology Center on Friday (2/24/12) - we had a great turnout and discussion. If you missed the seminar, click here to check out the presentation.

IT and facilities organizations have invested heavily in technology resources (people, processes, and tools) to manage the data center infrastructure, they have failed to achieve the promise and potential due to critical gaps between their data center facilities and IT infrastructure components. A new perspective on managing the critical infrastructure gaps is emerging that recognizes:

• The importance of 'real-time' data to understand the true capacity of available infrastructure
• The criticality of interdependencies between logical and physical layers
• The need for holistic management capabilities and visibility of IT and facilities infrastructures
• The need for more powerful management tools that offer a rich, visual view of the infrastructure and can guide design and change management 

>> Check out the FOUR TRENDS Driving the Future of Data Center Infrastructure Design and Management.

One thing we are seeing more and more of today is confusion over what temperature and humidity parameters data centers should be designed for.  Most of the discussion seems to assume that there is a monolithic block of data centers that can all be designed the same way.  Nothing could be further from the truth. 

Most of the data centers in existence today have a mixture of technologies and systems that all have varying environmental requirements.  We typically refer to these as mixed use data centers.  Unlike an E-Bay, Google, Microsoft or Apple data center, there is not rack after rack of the same equipment, all with similar operating requirements.  That is a very small, but highly publicized part of the market.  Everyone loves to write about the latest designs from Yahoo, Google, Apple, Etc, but they are not representative of the larger data center market as a whole. 

I know these data centers don’t get the publicity of the designs that push the envelope, but they are much more representative of the data center market as a whole.  We certainly do our share of cutting edge designs, but the majority of our clients are looking for ways to add capacity and increase the efficiency of their “traditionally designed” data centers.  This may include air and water side economizers and/or more efficient UPS systems and distribution.   The designs vary significantly, but the one thing these data centers have in common is that they all have equipment requirements that would preclude some of the modern designs that have little to no temperature and humidity control.

Published on 30th January 2012 by Ron Hughes-Data Center Dynamics

An alternative approach to conventional alternating-current (AC) power uses a direct-current (DC) power distribution scheme throughout a data center. Most data center server racks are not currently powered this way, but with the advent of servers on the market that can operate with either AC or DC, it is possible to use the DC powering approach, thus eliminating extra power conversion steps and losses. Other benefits include reduced cooling needs, higher equipment densities, and reduced heat-related failures.

This web site describes two pioneering demonstrations - one where direct current is distributed at the facility level to racks of computers that have been modified to directly accept high voltage direct current (DC) and another where the DC power conversion occurs at the rack level and DC is then directly distributed to servers within the rack. In typical data centers, the loss in electrical power through conversions of alternating current (AC) to DC to AC to DC occurs for all power flowing to the IT equipment. Efficiency gains have a magnifying effect by reducing need for HVAC (e.g. 10% saving at the UPS level mean about 10% energy savings for the entire data center, compared to a very efficient AC baseline case and assuming the HVAC system consumes as much power as the IT equipment).  Source: Lawrence Berkeley National Laboratory .

>> Read more now 

A New Study Reinforces Case For DC Power Saving

It’s been five years since a study by Lawrence Berkeley National Labs outlined the potential for DC power distribution to cut data center energy use by 10 to 20 percent. But adoption of DC in data centers remains limited, even as the industry aggressively pursues a wide array of other energy savings strategies.

>> Read more now