ARM Holdings HQ's New Build High Density Data Centre
Project at a Glance | |
|---|---|
| Location | Cambridge, United Kingdom |
| End User | ARM Holdings HQ |
| Legrand Solution | ColdLogik CL20 C12 Rear Door Heat Exchangers |
| Key Results | Low CAPEX and fast ROI, Low PUE, Low carbon, Leak Prevention System (LPS) added for leak prevention safety, Tier 3 (N+1) redundancy |
The world's leading semiconductor intellectual property (IP) supplier ARM is at the heart of the world’s most advanced digital products. Their technology enables the creation of new markets and transformation of industries and society. They design scalable, energy efficient-processors and related technologies to deliver the intelligence in applications ranging from sensors to servers, including smart phones, tablets, enterprise infrastructure and the Internet of Things. Their innovative technology is licensed by ARM Partners who have shipped more than 50 billion Systems on Chip (SoCs) containing their intellectual property since the company began in 1990. In 2012 ARM chips were used in over 85% of all smart phones produced in the world.
Challenges
In 2012, ARM Holdings required a new one-megawatt high density green data centre at their Cambridge headquarters. It needed to occupy the smallest footprint possible on an existing brownfield area within the grounds. The build, commissioning and handover had to be complete within only three months of the approved design. The remit incorporated a Tier 3 rating requirement with the lowest possible PUE for the cooling solution. An average of 16kW capacity per rack - capable of reaching 23kW with no detrimental effect to the IT equipment or room environment. Finally, this system had to be monitored locally and remotely with full access and control.
The Solution
How Rear Door Heat Exchangers (RDHx) were Optimized at ARM Holdings HQ
The design comprised of sixty USpace 48U 600 x 1200 ColdLogik compliant cabinets placed onto a raised floor in a space of only 7.5m x 13m. Sixty ColdLogik CL20 C12 Rear Door Coolers were fitted onto the cabinets complete with negative pressure hoses and flow control valves. Complementing the CL20 rear coolers were 3 x 500kW cooling towers (run and stand-by), which were chosen for their energy efficiency, capital cost and crucially their footprint, which took up no more than 12m x 4m - to provide the client with peace of mind throughout the data centre the patented Leak Prevention System was included in this space joining together the cooling towers and data centre pipe work. Key to the energy performance of this solution was the fact that no mechanical cooling was used.
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