high-performance computing
equipment (racks, switches, raised-floor, etc) lowering overall CapEx;
l 25 per cent-30 per cent decrease in OpEx thanks to reduced chilled-water requirements when using warm-water cooling. Te average ROI for CoolIT’s DCLC system is 0-6 months; and
compensates for the height and co-planarity variances present in all baseboards. When a server blade is
inserted into the rack, a cold plate slides under the lid. A few turns on a bezel-mounted crank presses the cold plate firmly onto the heat risers.
www.clusteredsystems.com
Te Coolcentric family of rear-door heat exchangers are passive, liquid-cooled, heat exchangers close-coupled to the rear of the IT enclosure. Te heat exchangers are
designed to help customers address today’s data-centre challenges of increasing IT loads, aging infrastructure, and the need to expand. Te Coolcentric heat
exchangers bring heat removal as close to the heat source as possible, providing the ultimate containment solution and eliminating the need
➤
Te challenge facing the developers of liquid cooling solutions is to make a system that is: easy to service; robust; and cost effective. Other issues include warranty and insurance. Clustered Systems’ design satisfies all these requirements. Te design consists of a
series of cold plates made out of multi-port tubing (MPT), brazed permanently into rack-mounted
to ‘cool’ your data centre. Coolcentric heat exchangers are flexible – they can be attached to any manufacturer’s rack, they are efficient – reducing data centre cooling energy by up to 90 per cent, and they save space. Coolcentric heat exchangers,
High Density RDHX-HD (40kW), Standard RDHx (20kW), and Low Density RDHx-LD (10kW), can provide sensible heat removal, cooling rack loads from 5kW to 40kW.
www.coolcentric.com
manifolds which distribute coolant through a metering device. Te rack holds up to 192 cold plates and can cool up to 200kW. Heat is conducted via heat
risers (aluminium blocks work well) from hot components to a single plane, usually the tops of the DIMMs, thence to cold plates through a compliant, thermally conductive interface. Tis latter
34 SCIENTIFIC COMPUTING WORLD @scwmagazine l
www.scientific-computing.com
Traditional data centres use chiller-based systems that use an average of 50 per cent of all data-centre power. CoolIT’s warm-water cooling eliminates or drastically reduces the need for chilled water supply. By using direct-contact liquid cooling (DCLC), the dependence on fans and expensive air conditioning and air handling systems is drastically reduced. Tis enables over 45kW densities per rack, low power use, and access to significantly higher performance. Integrating direct contact
liquid cooling initially increases the basic server cost; however, this increase is quickly offset by
several factors: l High density solutions require less standard data centre
l CoolIT’s modular and scalable Rack DCLCsystems optimise the server environment for a highly efficient data centre and provide immediate and measurable CapEx and OpEx benefits.
www.coolitsystems.com
Eaton-Williams, part of the CES Group, provides energy-efficient water cooling solutions that help drive down power consumption and drive up performance. A leading product in Eaton-
Williams’ HPC product offering is the ServerCool CD6 Cooling Distribution Unit (CDU), which is widely used with ultra- high density supercomputers. Te high-performance, customer configurable CDU has built in redundancy and communications capabilities from Modbus through to SNMPv3, SSH-CLI and Https web-server. It is used by eight of the world’s top 10 HPC manufacturers.
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