<Insert Picture Here> Austin Data Center 6Sigma DC CFD Model

Transcription

1 <Insert Picture Here> Austin Data Center 6Sigma DC CFD Model Keith Ward Keith Ward Data Center Facilities Engineering and Logistics Design

2 Austin Data Center Statistics - Space Original AT&T Designed and built building, but never operational Purchased Day Design, Final Fit Out and Commissioning i i 72,000 sqft 30 Pressurized Raised Floor 2240 Rack Locations for Customer IT Equipment Underfloor Structured Power and Signal Cable Infrastructure 94% of Data Center Floor has 25 foot Ceiling 144,000 sqft Building Deployment of IT Equipment is a Modular IT Equipment Cabinet (Roll-In) Architecture with Access Layer Switches in each cabinet Zoned Floor Space, Power and Network Topology Divided into 10 Customer IT Spaces (Quads) Each Quad has an Network Intermediate Distribution Facility (IDF) All Network IDFs feed into a central Main Distribution Facility (MDF)

3 Austin Data Center Power 8.1MW Parallel Redundant UPS Systems N+1 Generator e Backup ( 7 2MW Diesel GenSets) Structured power delivery to each Rack Location NEMA L21-20 in Low Density Area NEMA L21-30 in Heat Containment Area Cooling N+1 Chilled Water System Supply Side Temperature Controlled CRACs 600 Rack Locations out of 2,240 leverage Heat Containment System (2008 ASHRAE Best Practices, 2010 ASHRAE Technology Award) Hot and Cold Aisle Configuration Increasing Inlet Temperatures Intuitive Cooling Management

4 Austin Data Center Statistics Installed Customer Equipment Install Base Current contents: ~25,000 Customer Compute Servers 6 PetaByte Raw HDD Storage (SAN/NAS/DAS) Workflow-Roles Based Life Cycle Asset Management System Average 30% Tech-Refresh annually Houses Oracle Internal Production, On-Demand and Development Organizations. (Diverse Needs) People minimal on site personnel; Facilities, Logistics, small staff of System and Network Administrators

5 Austin Data Center CFD Modeling Software Evaluation Characteristics Library of Individually Characterized Vendor Equipment Complex Cooling Strategies es (VFD, Intelligent t Heat Containment t System) Build the model in 3 Dimensions In house control over solution build and processing Integration Opportunities Enhancement Requests Support

6 Austin Data Center Building the Model Phase I Modular Approach Building Under Floor Cabling CRACs w/turning vanes PDU s Fixed 2-post racks Drop Ceiling

7 6Sigma Virtual Facility Buildup: Shell

8 6Sigma Virtual Facility Buildup: Shell & UnderFloor

9 6Sigma Virtual Facility Buildup: Raised Floor

10 6Sigma Virtual Facility Buildup: Power and Cooling

11 Austin Data Center Building the Model Phase 2 Cabinets Equipment

12 6Sigma Virtual Facility Buildup: Cabinets & Equipment

13 Austin Data Center Building the Model Heat Containment System Plenum Straight Fan Units Intelligent Fan Units

14 6Sigma Virtual Facility Buildup: Cabinets Chimney Cabinets for High-Density Equipment Passive Chimney Cabinets Active Chimney Cabinets Fixed Flow OpenGate Data Systems EC20 s used to transition out old chimney cabinets 2-Post Racks to house switching equipment

15 6Sigma Virtual Facility Buildup: OpenGate Data Systems EC20 EC20 Fan Unit Pressure Sensors placed inside and outside the cabinet Fan tray tied to the sensors such that they zero out the pressure cabinet in the cabinet Agnostic to any equipment placed within the cabinet Can be configured to fit with any cabinet Ability to move ~2000 CFM

16 6Sigma Virtual Facility Buildup: OpenGate Data Systems EC20 Traditional Chimney Cabinet OpenGate Data Chimeny Cabinet

17 6Sigma Virtual Facility Buildup: OpenGate Data System

18 Austin Data Center A very large model Over 200 New Library Items Built 20MB 6Sigma *.room model 120 Million Cells Solution takes 72 hours with 8 process streams and a 80GB memory process footprint

19 Austin Data Center CFD Analysis and Continuing Operations Phase III Calibrate Analyze Phase IV Continue Updates What if Scenarios Design Enhancements

20 6Sigma Virtual Facility Buildup: Air Temperature ½ Cabinet Height Overall air temperature is between 68 and 75 deg-f Higher air temperatures in some areas

21 6Sigma Virtual Facility Results: Equipment Inlet Temperatures Model calibration will reveal true hot-spots Inefficiency of the passive chimney racks pressure build up leads to recirculation Current overheat is at the Cisco 1U Switches mounted on rear rails Oracle designed, Opengate Data built, 1U cooling duct solution has already been implemented (SA1), 10 to 15 degree drop in temperature

22 6Sigma Virtual Facility Results: Pressure and Flow Rates High pressure buildup on the top half of the VF Model needs to be calibrated to reflect the correct under-floor pressure

23 6Sigma Virtual Facility Results: ACU Operational Cooling Capacity Cooling capacities are quite balanced Effect of VFDs needs to be examined in the high-density areas

24 Future New Data Center

25 Future CFD Modeling Dynamic Asset Management Active Sensor Input Intelligent Alerts