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HP Unveils ‘Butterfly’ Data Center Design

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HP Unveils ‘Butterfly’ Data Center Design

July 27th, 2010 : Rich Miller

A view of the design concept for the new HP Flexible Data Center,

featuring a central networking core, four server room modules, and powerand cooling infrastructure housed at the perimeter of the facility.

HP today joined the growing crowd of companies offering modular data center systems, introducing the

HP Flexible Data Center, which features factory-built modules that support quick deployment andphased growth of enterprise data center infrastructure. HP says the new approach will be faster and

cheaper than new ground-up “greenfield” construction.

HP Unveils ‘Butterfly’ Data Center Design « Data Center Knowledge http://www.datacenterknowledge.com/archives/2010/07/27/hp-unveils-bu...

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The HP Flexible DC features a “butterfly” design with a center core module for networking and security,

surrounded by four server rooms (IT modules). Cooling equipment attaches to the rear of each data centermodule, while generators and power conditioning units are housed next to the facility. Each IT module

supports 800 kilowatts of IT load, providing a total capacity of 3.2 megawatts for a four-module butterflyconfiguration.

A Compelling Alternative to Greenfields

“Clients, such as financial service providers, government entities, and cloud and colocation hosts, will findthe scalable and modular nature of HP Flexible DC a compelling option,” said Kfir Godrich, chief

technology officer, Technology Services, HP. “HP can help clients innovate the way they build andoperate a greenfield data center for greater savings over its life span.”

The “flex” reflects the range of customer options, which includes the choice of four different cooling

technologies and five different UPS configurations, featuring both flywheel and battery-based UPSes. HPFlexible DC is optimized for a chiller-less air cooling design, using a slab (rather than a raised floor) and

hot-aisle containment to isolate the hot and cold air within the server area.

HP says its most energy-optimized design can result in a Power Usage Effectiveness (PUE) of 1.18,comparable to the lowest efficiency ratings seen at the largest facilities.

Modular data center designs are gaining traction based on their ability to provide predictable, repeatablecomponents for IT and power systems. A growing number of companies are developing modular systems

that are built in a factory, transported via container or truck, and then pieced together. This approach candramatically shorten the construction process at the project site.

Targeting Savings in Energy, Construction

While touting the operating gains from lower energy costs, HP is also making a strong pitch for themodular, pre-fab design’s potential to deliver huge up-front savings in the initial construction of a data

center. HP says it can build a 3.2 megawatt butterfly data center design for $26 million, or about $8.1million a megawatt. HP compares this to a next-generation greenfield build, which it says would cost $58

million, or more than $18 million per megawatt.

Companies like Yahoo and QTS have cited figures of $5 million to $9 million per megawatt fornext-generation data centers, but primarily for facilities optimized around focused workloads like search.

Enterprise data center projects have commonly cited construction costs of between $10 million and $15million a megawatt, with some project costs ranging as high as $20 million per megawatt.

“The pressure to save on capital and operating expenditures is one of the most critical issues facing


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enterprises today,” said David Cappuccio, vice president and chief of research, Gartner. “When building

new data centers, clients need to consider options that support business growth, while also saving time andcosts.”

HP said the modular approach allowed companies to consolidate data centers while segregating IT assets

by group, security level, or workloads (such as software development, production, or disaster recovery)which might require different types of access control or reliability.

The focus on free cooling means the Flexible DC will be more efficient in some geographies. “FlexDC is

more effective in locations that have large differences in the dry-bulb and the wet-bulb temperatures,known as the wet-bulb depression,” HP writes in its white paper on the new design. “These types of

conditions are normally found in arid dry climates. This type of environment coupled with evaporativecooling produces the best results without using much, if any, mechanical refrigeration.”

HP says its new design will enable gradual buildouts of large data center

footprints over time.

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it disaster recovery | Business Continuity Jobs

Posted July 27th, 2010

[...] Data Center Knowledge [...]

Mohan Thaddeus Simon

Posted August 13th, 2010

With “Butterfly”, HP adds wings to its Data Center designs, a four winged flexible networked structure


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that saves both cost and time. One interesting thing about data center designs is that although they

constitute only 2% of global carbon emissions, they serve as excellent examples of how Research &Development could help us in conserving energy and maximizing use of pollution-free natural resources.

In the days to come, governments across states would depend on these rich research findings to draft theirgreen policies.

Modularity and Emerging Trends in Data Center Design

Posted December 14th, 2010

[...] components that are well aligned with bespoke modular configuration needs. New designs from HP,

Dell and new players like BladeRoom and NxGen have gone “beyond the box” with designs that [...]

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