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  • SynapSense

  • WSN Market Evolution200020072010WSN 2nd GenerationThe Commercial Era

    Customer Requirements:Hardware platform flexibilityAccelerated application development timeEnable broadly varying sensor networksRapid adoption of continuously emerging technology improvements

    Result: Complete, commercial solutions

    WSN 1st GenerationThe Research Era

    Issues:Incomplete SolutionsSubject to the Tech TreadmillMany non-standard platformsDifficult to build, deploy and manageDomain-specific languages

    Result: Few complete solutions, fragmented value-chain





















  • System OverviewDataIntegration!GatewayEAI Web Services, SNMP, BACnetModBus5Data and Control BusData Analysis4DataAnalysisSoftwareStorageXML,SCADA3

  • The Ecosystem ChallengeSensorsWSN boardsData CollectionDatabaseWSN PackagesBusiness IntelligenceInstallationService & SupportVisualizationVery DifficultBag of PartsExpensive &Intrusive

  • SynapSense Solution OverviewArchitectural Overview

  • Sensor TypesRack Thermals LeakDetection Door StatusBranch Circuit Monitoring

    Power MeteringAir PressureChilled Water BTURoom RH & Dew Point

  • RackTemperatureRHCurrentPowerSub-floorPressureDifferentialCRAHSupply & Return Air TempSupply RHChilled Water Supply & Return TempFan PowerChilled Water Flow(Captured at CRAH)PDUCurrent, Voltage & PowerSynapSense Solution Overview

  • LiveImaging SynapSoft 4.0Ground-breaking 2D maps use your real-time data center analytics to create a visual description of your environment.

    Live Environmental Imaging is a special service for SynapSense customers. 2D Thermal Map2D Pressure Map2D Humidity Map

  • Towards a Greener Data Center: Tools & Techniques UCCSC 2008, UC Santa Barbara Gregory Bell Acting Chief Technology Architect, IT Division Lawrence Berkeley National Laboratory July 21, 2008

  • MotivationEnergy efficiency = core DOE missionseveral LBNL researchers study power consumption of IT equipment (data centers, servers, power supplies, cooling, UPS technology)More pragmatically: data center resources are increasingly scarce!power, space, cooling all in short supply Why? Significant growth in cluster computing:40% of LBNL scientific teams need or use clusters70% interested in cycles on shared cluster


  • Motivation: scientific computingDemand for computing cycles isgrowing rapidly on many campuses, not just LBNLthe direct expression of a broad scientific need ITs primary data center runs out of capacity between 2010 and 2012depending on cluster growth rate (7% - 20%)Strategically, we must maximize efficiency of current data centereven as we locate new space


  • The story of a data center: 50B-1275Several decades old~5000 sq ft18 raised floors~.5MW total power consumptionCombination of clusters and business systemsclusters account for almost all new demandUnusual cooling system 7 down-shot CRACs for under-floor supplysupplementary overhead supply (chiller coil + fans)

  • The story of a data center: 50B-1275Starting summer of 2007, IT began a data center efficiency effortIn collaboration with researchers in EETD, we perform a series of engineering studiesdocumenting electrical, mechanical systemsmeasuring loads & capacities; performing CFDcalculating efficiencyidentifying opportunities for improvementdeploying wireless sensor system (more later)

  • What we learnedThe data center was overcooled but this is the normAbundant low-hanging fruitsimultaneous humidification & dehumidificationblanking panels missingexcessive number of perforated floor tilesair-flow pathologies (mixing, short-circuiting)The data center was relatively efficient! none of the clusters backed by UPS

  • Taking steps to increase efficiencyImproved airflowoverhead plenum converted to hot-air returnsupplementary cooling directed under floorfloor-tile tuningblanking panels, curtains, etcVirtualizationWater coolingWireless environmental monitoring system

  • Steps to increase efficiencyImproved airflowoverhead plenum converted to hot-air returnsupplementary cooling directed under floorfloor-tile tuningblanking panels, curtains, etcVirtualizationWater coolingWireless environmental monitoring system focus of remainder of talk

  • The importance of visualization*systems & network administrators have tools for visualizationuseful for debugging, benchmarking, capacity planning, forensicsdata center managers have comparatively poor visualization tools

  • One form of visualization: CFDImages: ANCIS

  • Visualization and real-time monitoringWe installed a wireless sensor net from SynapSense200 monitoring pointstemperature, humidity, under-floor pressure, currentFor the first time, we have a detailed understanding of environmental conditions in the data centerreal-time and historical graphsunderlying databaseSynapSense is a technology transfer success story from UC DavisCTO and co-founder is Raju Pandey, also Computer Science professor at UCDhttp://www.synapsense.comYou cant control or manage what you dont measure.

  • SynapSense hardwarewireless sensor networkself-organizing nodes802.15.4 (not 802.11)multi-hop routingnon-invasive installation2 internal & 6 external sensors per nodewe measure temp., humidity, pressure, currentwe could measure liquid flow, liquid presence, particle countImage: SynapSense

  • Learning from the sensorslesson #1: eat your spinach!effect of adding one 12 blanking panel to the middle of a rackconventional wisdom is correct: blanking panes are essentialother data center clichs also borne outeliminate leaks in floormanage floor tile permeability

    Top of rackMiddle of rack

  • Visualizing impact of site modificationsGraphing impact of major maintenance (redirection of overhead cold air supply underfloor) on air pressurein some areas, under-floor pressure increased by almost 50%impact varies according to distance from new air supply

  • Visualizing impact of maintenanceeach CRAC turned off in turn, for servicehot spots monitored during maintenancetwo-fold benefit real-time feedbackenhanced knowledge of data center redundancy characteristicsprovisionally turn off one or more CRAC units?

    Under-Floor PressureRack-Top Temperatures

  • Feedback on floor-tile tuningin the course of one day24 perforated floor tiles removed6 floor tiles converted from high- to low-flow4 floor tiles converted from low- to high-flow


  • Feedback on floor-tile tuning

    with instrumentation, we can observe results in real timewhen airflow is restricted,under-floor pressure increasesrack-top temperatures decreasewithout monitoring and visualization, this process is guessworkhow many tiles to remove?

    Under-Floor PressureRack-Top Temperatures

  • Focus on a single sensor

    iterative process: too cold, too hot, just rightmonitor with laptop in data center for convenience

  • LiveImaging heat-map movies *

  • Data Center Value

  • SynapSense 3-Step Process to Adaptive CoolingAdaptiveCoolingControl3Air FlowManagement2 Visibility1

  • Environmental Baseline & ResultsSynapSense Thermal LiveImagingBaselineCHHCNo ContainmentHigh Degree of Air MixingHigh Inlet Temperatures

  • SynapSense Solution OverviewCold Aisle Containment

  • Environmental Baseline & ResultsSynapSense Thermal LiveImagingAfter ContainmentCHHCCold Aisles ContainedNo Change to CRAHsOvercooled

  • Environmental Baseline & ResultsSynapSense Thermal LiveImagingWith ControlCHHCControlled CRAHsASHRAE Inlet Temperatures Increased Return Temperatures

  • Environmental Baseline & ResultsSynapSense Thermal LiveImagingWith ControlAfter ContainmentBaselineCHHCCHHCCHHC

  • One Solution Three VectorsBalance Cooling Capacity Optimize: Air Pressure & Flow CRAC/CRAH Utilization Synergize IT & Facilities One DashboardIntegrated Tool Suite Optimized Capacity Planning Balanced IT & Infrastructure Improve Energy Management UPS Capacity Planning Energy Baseline Metrics PUE / DCIE CoolingPowerOperationsOptimizationBalanceEfficiency

  • Qualified for Utility RebatesSMUD: will provide incentive $0.14/kWh saved not to exceed 30% of project cost or $50,000PG&E: Once improvements made, customer receives incentive of $.08 per kWh saved, up to half cost of improvementsSVP: will rebate $0.18/kWh saved up to 80% of the solution cost with proven savings

    Join us for the next few minutes as we show you break-thru technologies from SynapSense Corporation which is enabling energy and operational efficiencies in the worlds leading data centersThe SynapSense LiveImaging Solution has a comprehensive instrumentation suite tailored to monitor and manage the data center and its critical infrastructure. These wireless sensors are quickly spread across the data center from sub floor to ceiling; from chiller plant to energy infrastructure to provide one holistic view for the IT and Facilities groups. This new edge provides real time information and is enabling the IT and Facilities teams to create a synergistic plan to maintain an optimized floor.Concl

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