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Google’s head of data center operations provided a seven-year look at how the search giant’s data center strategy has evolved during the 7×24 Exchange conference on Tuesday in Phoenix, Ariz. providing a new look at the secretive search giant’s operations. From the company though pioneered the idea that the data center is no longer a place to keep servers, but rather a computer in and of itself, this evolution is eye-opening.

Joe Kava, the VP of data centers for Google, kicked off his presentation with seven years of data center history at Google. So first, the timeline:

  • 2005: This is when Google used containers in its data center where IT hardware is integrated into the data center space.
  • 2006: Google created a purpose-built data center where it moved from containers to its own data center design.
  • 2007: Google addressed the supply chain issues with “modular at scale” to support the cost-effective and faster way to build out its data center capacity.
  • 2008/2009: In this year, metrics like PUE and best practices are used and shared.
  • 2010: Google launches its renewable energy efforts, spending over a billion dollars on the initiative. It has reached 260 MW of renewable energy acquired by 2012.
  • 2011: A year for standards — the data center group meets ISO and OHSAS certifications.

This year’s theme is transparency.

Google sharing seven years of data center initiatives is unheard of in the data center industry where secrecy is a standard practice. As an example of this transparency Google has shared data showing that it has improved its data center mechanical systems over the past four years, reducing the energy use in electrical and cooling systems by 42 percent.

During the third quarter of 2008, Google’s electrical and cooling systems across all of its data centers used 21 watts for every 100 watts of IT load. In the second quarter of this year it used only 12 watts for every 100 watts of IT load. In the data center industry we would call this a power usage effectiveness of 1.12.

After seven years of data center development Google shared its vision of modular, cost-effective designs that reduce the lead times to deliver data center capacity. Six years ago it took 16 months for Google to build its data center in Atlanta. Now, Google can react much more quickly as buildings are built to add capacity measured in months not years.

The inside of the data center looks like no other, as Google has prioritized being flexible and efficient while basing its total costs of ownership for IT over a life cycle as short as seven years. This is the accounting depreciation schedule for capex to build data centers, IT hardware, and takes into account operational expenditures. It is not uncommon for legacy data centers to have a life cycle that corresponds to the depreciation of the data center building at 27 years. Google is updating its data center mechanical infrastructure in the same way a manufacturer wants to latest tooling to support production innovation.

One of the most surprising statements in another presentation by a data center provider was how low the premium for renewable energy is, yet when the renewable option has been offered, no customers have chosen this option. Yet, Google, in thinking long-term has made the choice to be carbon neutral, share its efficiency best practices and make it a priority to have a sustainability strategy.

Kava’s presentation had over 45 slides and went into deep dive into cooling systems and water use. If you are interested in these topics here is a post on how Google determined pumps are more efficient than fans. And, the range of water sources Google uses to cool its data centers.

Google has made one of the most significant efforts to change the data center industry by embracing transparency as part of its data center industry.

Dave Ohara is a GigaOm Pro Analyst, covering data centers, cloud and Big Data. You can follow Dave’s thoughts at his blog and on Twitter @greenm3.


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