Vette LiquiCool TM Solution Arlene Allen University of California Santa Barbara Director, Information Systems & Computing Rob Perry Executive Manager 1.

Vette LiquiCoolTM Solution

Arlene AllenUniversity of California Santa BarbaraDirector, Information Systems & Computing

Rob PerryExecutive Manager

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Data Center Trends - Staggering Energy Consumption and Cost of Energy

3Source: EPA 2007 Report to Congress

Energy unit price has increased an average of 4% YOY in the USA and 11% YOY GloballyData Center energy consumption is growing by 12% annually

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Source: Belady, C., “In the Data Center, Power and Cooling Costs More than IT Equipment it Supports”, Electronics Cooling Magazine (Feb 2007)

Data Center facility costs are growing 20% vs. IT spend of 6% Operating costs over lifetime of a server ~ 4X original purchase cost Cooling infrastructure can consume up to 55% of Data Center energy

Data Center Trends – Operating Expense Exceeds Capital Expense in less than 1

year

UCSB – “The Problem”

UCSB’s existing Data Center is being renovated for research computing and is forcing the corporate/miscellaneous IT equipment into a new space.This new space is not designed to be a Data Center. The footprint is small, the power is limited by existing building wiring and using traditional air-cooling topology is not feasible.The new space limitations requires the load density to increase from a typical density of 6kW or less to a higher density of 10-16kW per rack

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LiquiCool - “The Solution”

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Move the corporate/miscellaneous IT racks into the new space

Tap into the existing building chilled water system

Install Vette LiquiCool Rear Door Heat Exchangers on every rack

Install Vette LiquiCool Coolant Distribution Unit for a secondary loop

Install rack-mount UPS in every rack

LiquiCool - “The Solution”

LiquiCool™ – A complete cooling solution for the consolidation and scale-out of compute infrastructure in today’s sustainable Data Centers

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Reduces white space requirements by more than 55%

Cuts cooling energy consumption by 50% or more when compared to traditional air-cooled Data Centers

Allows 8X the amount of compute power in a typical IT enclosure

Lowers carbon footprint by more 50% or more vs. air-cooling

Bottom Line: Payback in less than 1 year when compared to traditional computer room air-conditioning

Front of Enclosure

Rear of Enclosure

LiquiCool - How does it work?

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Based on IBM IP & Technology Licenses (>30 years of water cooling experience)Rear Door Heat Exchanger (RDHx) replaces existing rear door of IT enclosureRDHx has chilled water Supply & Return quick connections at bottom OR topRaised floor becomes optionalChilled water circulates through tube+fin coil from Supply connectionEquipment exhaust air passes through coil and is cooled before re-entering the roomFin + tube

Heat exchanger

Cold Supply Water

Heated Water

LiquiCool System

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Passive RDHx provides 100% sensible coolingNo condensation, no need for reheat or humidification

CDU creates a fully isolated, temperature controlled Secondary LoopChilled water source - city water, building chilled water, packaged chiller…

1010

Temperature:7oC / 45o FWater pressure:100-200 psi

Temperature:10-17oC 50-63oF

Water pressure:30-70 psi

RDHx - External View

11Top Feed Connections Bottom Feed Connections

PassiveNo electrical connectionsNo moving parts

No FansNo powerNo noise

Attaches to rearNo need to rearrange racksDoes not consume valuable floor space, adds 4-6” to rear

Close-coupledNeutralizes at the source

RDHx - Internal View

12Tube & Fin coil

Air-bleed valves

Bottom Feed HoseConnections and drain valve

Protective barrier

Thermal Image - Before & After100% Heat Neutralization

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RDHx Cooling in Action

Rear Door Heat Exchanger Door openedServer Leaving Temp 102ºF (38.9ºC)

RDHx reduces Leaving Temperature by 28ºF (15.4ºC)! 14

Rear Door Heat Exchanger Door closedServer Leaving Temp: 74ºF (23.5ºC)

Temperature readings taken in the rear of a fully populated Enclosure

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Industry Standard Enclosure

Remove existing rack rear door & hinges

RDHx is Compatible with most major IT Enclosures

Mount Transition Frame (if needed)

• Max. Cooling Capacity: 33kW • Coolant: Chilled Water (above dew

point)• Dimensions: 76.6“ H x 4.6“ D x 23.6“ W

(1945mm x 117mm x 600mm)

• Weight – empty: 63lbs (29kg)• Liquid Volume: 1.5 Gallons (5.7 Liters)• Liquid Flow Rate: 6-10 GPM (23-38 L/min)• Head Loss: 7 psi (48 kPa) at 10 GPM (38

L/min)• System Input Power: None required• Noise: None• Couplings: Drip-free stainless steel

quick- connects• Connection Location: Bottom or Top Feed 16

RDHx General Specifications

• Water to water heat exchanger with pumps, controls and chilled water valve• Creates an isolated secondary cooling loop

– 100% sensible cooling, no condensation– Small water volume (tens of gallons)– Easier to control water quality

• Redundant, fault-tolerant design • 120kW or 150kW capacity

– Supports 6-12 RDHx– Optional internal manifold for quick expansion

• SNMP & ModBus communications

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Coolant Distribution Unit (CDU)

• Power Consumption: 2.6 kW• Pump Capacity: 63 GPM at 30psi (240 L/min at 207

kPa)• Primary Head Loss: 10.2 psi at 63 GPM (70 kPa at

240 L/min)• Minimum Approach Temperature (100% load):

• 120kW unit - 12°F (6.7 °C)• 150kW unit - 8°F (4.4 °C)• 63 GPM (240 L/min) on primary and secondary

CDU Simplified

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Floor-mount CDU Internal - Front

Controller

Redundant variable speed pumps

Redundant valves

Reservoir tank

Inverter drive

Brazed plate heat exchanger

Casters and Drain 19

Floor-mount CDU Internal - Rear

Primary side water filter

Optional Secondary Loop Distribution Manifold

Primary supply and return connections

Optional Secondary Loop Flex Tails

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Hose Kits & External Manifolds

Connects to flex tails on CDU secondary sideISO B or Sweated ConnectionsStandard & custom configurations

Each Vette Hose Kit consists of a flexible Supply hose and a Return hoseFactory assembled and tested to IBM specifications and standardsQuick-connect drip-free couplings on one end OR both endsStraight hoses for raised floor environments, right angle hoses for non-raised floor environmentsStandard lengths from 3ft. to 50ft.

Water Treatment

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CORROSION

MICROBIO

FOU

LINGSC

ALE

Potential Effects of Non-Treatment• Loss of heat transfer• Reduced system efficiency• Reduced equipment life• Equipment failures or leaks• De-ionized water without inhibitors

is corrosive!

Treatment of Cooling Water

Scenario I – Out of Space

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56% Recovery of

White Space!

Add RDHx – Double your load per rack

Eliminate CRAC units

Scenario II – Out of Power/Capacity

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Add RDHx

Remove (2) CRAC units

Reduces cooling energy

consumption to free up

capacity for growth

Scenario III – High Density

CRAC units can typically provide efficient environmental control for rack densities

of up to 5kw per rack

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Adding RDHx allows 8X the

ComputePower!

Reference Sites

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National Center for HPC, Taiwan

Warwick University, Coventry, UK

Georgia Tech Super Computing Facility - 12 racks at ~24kW each

Front view Rear view

Reference Sites

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Silicon Valley Leadership Group Case Study - Modular Cooling Systems

SVLG “Chill Off” Results

Vette’s LiquiCool™ solution led the field in cooling capacity and in cooling efficiency!

Vette

LiquiCool - Conclusive Savings for Energy, Space & Cost

Largest % of Data Center OPEX growth is power & cooling relatedCost of energy for cooling is a large (and growing) cost component

Data Center consolidation, virtualization and advanced hardware technology are driving higher power densities per rack and associated white space constraints

Traditional air-cooling is less likely feasible

Purchasing decisions can no longer be made solely on CAPEX TCO must not only be considered, but is core

Value Summary:Reduces white space requirements by more than 55%Cuts cooling energy consumption by 50% or more when compared to traditional air-cooled Data CentersAllows 8X the amount of compute power in a typical IT enclosureLowers carbon footprint by more 50% or more vs. air-coolingBottom Line: Payback in less than 1 year when compared to traditional computer room air-conditioning

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EndThank You

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