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Saving Energy With Smart Cabling

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This presentation will provide insight through a case study review. Data center operational efficiently presents many challenges; Downtime is costly and disruptive and space is at a premium. Proven …

This presentation will provide insight through a case study review. Data center operational efficiently presents many challenges; Downtime is costly and disruptive and space is at a premium. Proven and New Modular technologies can significantly improve time
and space efficiency.


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  • 1. Saving Energy With 'Smart' Cabling Mike Cooper, RCDD Systems Application Engineer, Netconnect Data Center Solutions mike.cooper@tycoelectronics.com October 31, 2007
  • 2. Saving Energy With 'Smart' Cabling What is “smart” cabling? • High bandwidth cabling? • High density cabling? • Intelligent cabling? • Well designed cabling? Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 2 / October 31, 2007
  • 3. Impact of Power Density • Power Density is increasing on average 15-20% per year within the data Center – Individual server power density – IT Technology refresh activity – Server footprint • Methods of measuring efficiency within the DC are outdated – Watts/sq meter are no longer useful in deciding server deployment strategies • Key to success is balancing infrastructure investments with IT goals model Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 3 / October 31, 2007
  • 4. Power- Where is it Going? Reducing Data Center power consumption is a multi-faceted challenge. All areas need to be addressed to maximize data center compute capacity and minimize power costs. Netw ork Equip, 12% Server, 25% Cooling, 50% Pw r Loss, 10% Lighting, 3% Sources: EYP Mission Critical Facilities, Cisco IT, Network World, Customer Interviews, APC NOTE: Industry rule of thumb is that approx 25% of Data Center Power goes to networking equipment and typically includes cooling and power requirements. Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 4 / October 31, 2007
  • 5. Application Cabling Power Measurements How much power use is direct from the network? • Power consumption due to Ethernet links • Power measurement of – LAN switch – 1000 Base-T NIC Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 5 / October 31, 2007
  • 6. Application Cabling Power Measurements • Power use measurement – 24-port LAN switch – No. of Active configured links # ports 10 Mb/sec 100 Mb/sec 1000 Mb/sec 0 69.1 W 69.1 W 69.1 W 2 70.2 70.1 72.9 4 71.1 70.0 76.7 6 71.6 71.1 80.2 8 71.9 71.9 83.7 10 and 100 Mb/sec At 1000 Mb/sec it is about are about the same 1.8 W added per active link Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 6 / October 31, 2007
  • 7. Application Cabling Power Measurements • Power use measurements Idle Link (no activity) Rate Current Voltage Power (Mb/s) (mA) (V) (W) Measured at PCI bus (DC) 1000 770 5.08 3.91 Active Link (file transfer) 100 224 5.11 1.14 10 130 5.11 .664 Rate Current Voltage Power (Mb/s) (mA) (V) (W) Difference between 1000 and 10 Mb/sec is about 3.2 W 1000 768 5.08 3.90 100 224 5.11 1.14 No significant difference between 10 124 5.11 .633 idle and active link Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 7 / October 31, 2007
  • 8. Current application benefits • Density, modularity & performance on equipment and in infrastructure • MRJ21™ provides Hi-D Green GbE Euro – Connector: 1/3 -1/4 RJ45 cassette MPO – Cable: 30% smaller, 20% lighter MRJ21™ • 1 cable vs. wrapped 6-cable bundle 1.14”x.74” – Eco-Friendly 6 GbE ports – All components permanent link tested, documented and serialized – Pwr: 7-15% less than RJ45 in 2x ports – 10G Shielded Version in process Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 8 / October 31, 2007
  • 9. Network Vendors with Hi-Density GbE Equipment • Alcatel • Shanghai Electronics – OmniSwitch • Stratex Networks – Lucent • Tellabs / Vivace Foundry BigIron RX-4,8, & 16 – TiMetra • UT Starcom 48 GbE ports/card • Barco Xenia • EIT • EntriSphere • Foundry Networks Alcatel OmniSwitch • Force10 Networks NI48 card • Fujitsu • IBM IBM eServer BladeCenter Copper Pass- • Motorola Force10 E1200 thru module 90 GbE ports/card 15 GbE ports • NMS Communications • Proworks Note: The vendors listed and shown have publicly launched MRJ21 equipment into the marketplace. Vendors not listed should be contacted directly for program status updates. Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 9 / October 31, 2007
  • 10. 10G Base-T Application Cabling Power • 10GB-T PHY optimized for 100m UTP Cabling – 15-20W (in 90nm) (1000B-T: 500mW) – Problem for High Density Line Cards, PCI Cards, MBs – 2.5us latency (1000B-T: 250ns) – Too high for some High Performance Applications, Fibre Channel, InfiniBand – Power Hungry AFE (Analog Front End) – 50% of Power is in AFE • Not likely to improve much over time – Large percentage of the power is in the AFE – Power reductions in smaller process geometries are questionable Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 10 / October 31, 2007
  • 11. 10G Base-T Application Cabling Power • Summary of power measurements 15 Power use (W) 10 5 0 10 100 1000 10000 10G Base-T is a power concern speed (Mb/sec) Link Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 11 / October 31, 2007 g00.xls
  • 12. 10G Base-T Application Shielded Cabling Power • Power Dissipation • Short Reach – 3W Typical, 4W Worst Case – 30m on STP/FTP Cable (field • Latency configurable) – Less than 500ns – 2 Connector, 3 Links Segments – Goal of 250ns – Goal of 45m • Low Cost • Auto Negotiation Compatible – Significant SNR Margin – RJ-45 Connector (1000B-T: 10dB) – Backwards Compatible with 100B-T / – Demonstrable Design of 1M Gates 1000B-T over UTP (2x 1000B-T) Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 12 / October 31, 2007
  • 13. Characteristics of Data Center Cabling • 90% of Links are in Server Rooms Less Than 1,524 m^2 (5,000’) (100% <= 30m) • 5% of Links are in S. Rooms Between 1,524 m^2 and 6,096 m^2 (5,000’~20,000’) (80% <= 30m) • 5% of Links are in Server Rooms Greater Than 6,096 m^2 (20,000’) (55% <= 30m) • => 97% Coverage with 30m • => 99% Coverage with 45m Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 13 / October 31, 2007
  • 14. 10G Base-T Application Shielded Cabling Power • Networking power consumption is a significant portion of energy use in data Centers. • Other elements within the data Center can modulate power to required performance • Installing shielded cabling can allow the reduction of Network power requirements for 10G Base-T by up to 75% Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 14 / October 31, 2007
  • 15. Energy Efficient Ethernet • Past / current practice – Design for maximum performance and ensure maximum power condition can be powered / cooled. • Future practice needs – Design for normal usage, ensuring maximum energy efficiency at that operating point – Lower energy use at lower utilization – Design for minimum energy usage over operational lifetime Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 15 / October 31, 2007
  • 16. Energy Efficient Ethernet • 1 Gb/s – Most NIC’s and most energy to be saved – Substantial benefits for homes and offices – Battery life benefit for notebooks • 10 Gb/s (copper) – Reduces power burden in data centers – Reduces cooling burden in data centers – May increase switch/router port capacity Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 16 / October 31, 2007
  • 17. Energy Efficient Ethernet • Imagine: • Some means of changing PHY speed for major copper PHY’s: – Change between 1000BASE-T & 100BASE-TX based on actual utilization. – Change between 10GBASE-T & 1000BASE-T based on actual utilization. Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 17 / October 31, 2007
  • 18. Energy Efficient Ethernet • Potential estimated energy savings: • Commercial (Office) – PCs, switches, printers, etc. – 1.47 to 2.21 TWh/year – $283 to $522 million/year • Data Centers – Servers, storage, switches, routers, etc. – 0.53 to 1.05 TWh/year – $106 to $211 million/year Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 18 / October 31, 2007
  • 19. Next Generation Ethernet Networks • In the Data Center 10 GbE has Server penetrated into the access layer Farms much faster than in the traditional network environment A B Edge • Adoption of 10GbE on the server infrastructure will drive the need for Core 100GbE uplinks from the access to the core of the data centers. Storage/Tape Farms Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 19 / October 31, 2007
  • 20. Next Generation Ethernet Networks Fiber Copper ~2W Power Consumption ~8-15W Cooling Requirements Transceiver Size $ Data Center Area $$$$ Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 20 / October 31, 2007
  • 21. Next Generation Ethernet Networks •New high density MPO transceivers •For40 Gb/s, commercially available today •12 channels running at BER <10-12, link length 316m using OM3 fibre •Utilizing 12 core ribbon fibre cable •12 channels, 9.9-11.0 Gb/s/channel tester designed and built. Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 21 / October 31, 2007
  • 22. Next Generation Ethernet Networks • Fibre Optic Transceiver Power estimates – High Bandwidth – Low Power # Channels # Transceivers per Total Gb/s per board Total W per board board 10 3 300 12* 6 24 2,400 60* 8 - 12 12 1,200 30* 4 - 10 12 1,200 30* * Based on Existing 850nm lasers Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 22 / October 31, 2007
  • 23. Saving Energy With 'Smart' Cabling What is “smart” cabling? • Cabling Technology that allows the support of new technologies at low power consumption. • Cabling that is forward compatible with data center technology trends. • Cabling that utilises new connector technologies that will be compatible with the next generation interconnects. • Cabling solutions that provide a positive impact in the power vs. bandwidth battle. Information is Tyco Electronics Confidential & Proprietary Do Not Reproduce or Distribute page 23 / October 31, 2007
  • 24. Thank You! October 31, 2007