Fundamental Ways to Reduce  Data Center OPEX Costs Melvyn Wray SVP of Product Marketing
What are data center OPEX costs <ul><ul><li>Electricity costs </li></ul></ul><ul><ul><li>Licence costs </li></ul></ul><ul>...
Obvious electricity cost savings <ul><ul><li>Virtualization </li></ul></ul><ul><ul><li>Power efficiency </li></ul></ul><ul...
Virtualization <ul><ul><li>Reduces overall power consumption </li></ul></ul><ul><ul><li>With a high performance server con...
Power efficiency <ul><ul><li>Select data center equipment with the highest power efficiency </li></ul></ul><ul><ul><ul><li...
Air conditioning <ul><ul><li>Highly efficient air conditioning typically has an Energy Efficiency Ratio (ERR) of 10 </li><...
Air conditioning <ul><ul><li>Recommendations are to keep ambient temperatures between 20~24 o C </li></ul></ul><ul><ul><li...
Rack layout – non force air cooled <ul><li>More localized heat </li></ul>Less localized heat Switch Switch
Licensing costs <ul><ul><li>25% saving on Microsoft Server Licences with Enterprise Licence </li></ul></ul><ul><ul><ul><li...
Maintenance costs <ul><ul><li>Without virtualization, each server hosts an application </li></ul></ul><ul><ul><ul><li>Hard...
Labour costs <ul><ul><li>With critical hardware, IT support labour costs are higher </li></ul></ul><ul><ul><ul><li>More ex...
‘ Hidden’ potential cost savings <ul><ul><li>Networking equipment </li></ul></ul><ul><ul><ul><li>Electricity costs </li></...
Power consumption <ul><ul><li>Not all switches are created equal </li></ul></ul><ul><ul><ul><li>Power consumption across m...
Power supply efficiency <ul><ul><li>Inefficient power supplies generate more direct heat. </li></ul></ul><ul><ul><ul><li>S...
Short cable lengths <ul><ul><li>‘ Green’ Ethernet </li></ul></ul><ul><ul><ul><li>Switches automatically detect copper cabl...
Energy Efficient Ethernet <ul><ul><li>One Lawrence Berkeley Labs researcher estimated the IEEE effort alone could save $45...
Inter-connections <ul><ul><li>Different inter-connects vary largely in cost, but also in power </li></ul></ul>Connection S...
Turn off the lights!! <ul><ul><li>Many data center or server rooms are kept locked and may not have any humans enter for d...
Eco-friendly switches <ul><ul><li>Allied Telesis eco-friendly switches can also turn off their LED indicators </li></ul></...
Remove the fans <ul><ul><li>For non forced-air systems, some Allied Telesis switches are now so low power that they are fa...
Out of hours operation <ul><ul><li>Do you need to run all the services 24/7? </li></ul></ul><ul><ul><ul><li>Weekends </li>...
Power down servers <ul><ul><li>With virtualized applications being hosted on multiple hardware hosts, some hosts can be po...
Power down/off - out of hours <ul><ul><li>VoIP phone systems </li></ul></ul><ul><ul><ul><li>Legally you have to have some ...
Power down/off - out of hours <ul><ul><li>Wireless access points </li></ul></ul><ul><ul><ul><li>If no one is present in th...
Summary <ul><ul><li>Allied Telesis provides Network Infrastructure equipment for use in Data Centers, which can help reduc...
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Fundamental ways to reduce data center OPEX costs

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By using virtualisation significant savings can be made, but Allied Telesis have even more ways to squeeze the
OPEX costs, further reducing both electricity and air-conditioning costs.

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Fundamental ways to reduce data center OPEX costs

  1. 1. Fundamental Ways to Reduce Data Center OPEX Costs Melvyn Wray SVP of Product Marketing
  2. 2. What are data center OPEX costs <ul><ul><li>Electricity costs </li></ul></ul><ul><ul><li>Licence costs </li></ul></ul><ul><ul><li>Maintenance costs </li></ul></ul><ul><ul><li>Labour costs </li></ul></ul>
  3. 3. Obvious electricity cost savings <ul><ul><li>Virtualization </li></ul></ul><ul><ul><li>Power efficiency </li></ul></ul><ul><ul><li>Air conditioning efficiency </li></ul></ul>
  4. 4. Virtualization <ul><ul><li>Reduces overall power consumption </li></ul></ul><ul><ul><li>With a high performance server consuming ~1kW, the power savings are large </li></ul></ul><ul><ul><li>Each server consumes ~£800 of electricity per annum (based on 10p per kW) </li></ul></ul>
  5. 5. Power efficiency <ul><ul><li>Select data center equipment with the highest power efficiency </li></ul></ul><ul><ul><ul><li>Choose 90% over 80% efficiency </li></ul></ul></ul><ul><ul><ul><li>Inefficiency produces noise and heat </li></ul></ul></ul><ul><ul><ul><li>Heat requires air conditioning </li></ul></ul></ul>
  6. 6. Air conditioning <ul><ul><li>Highly efficient air conditioning typically has an Energy Efficiency Ratio (ERR) of 10 </li></ul></ul><ul><ul><ul><li>ERR = cooling energy (Btu/hr) / power consumption (W) </li></ul></ul></ul><ul><ul><ul><li>Effectively, 25% additional energy is needed for cooling </li></ul></ul></ul>
  7. 7. Air conditioning <ul><ul><li>Recommendations are to keep ambient temperatures between 20~24 o C </li></ul></ul><ul><ul><li>To reduce costs – set temperature and run at 24 o C rather than 20 o C </li></ul></ul><ul><ul><li>Layout of the equipment, to allow better airflow will reduce ‘hot spots’ </li></ul></ul>
  8. 8. Rack layout – non force air cooled <ul><li>More localized heat </li></ul>Less localized heat Switch Switch
  9. 9. Licensing costs <ul><ul><li>25% saving on Microsoft Server Licences with Enterprise Licence </li></ul></ul><ul><ul><ul><li>Four Virtual Server Licences for the price of three Standard Licences </li></ul></ul></ul><ul><ul><li>>25% savings with Data Center Licences when deploying over eight virtual machines </li></ul></ul>
  10. 10. Maintenance costs <ul><ul><li>Without virtualization, each server hosts an application </li></ul></ul><ul><ul><ul><li>Hardware availability is critical </li></ul></ul></ul><ul><ul><ul><li>Maintenance contracts mandatory </li></ul></ul></ul><ul><ul><li>With virtualization, multiple servers host multiple applications </li></ul></ul><ul><ul><ul><li>Hardware may fail, with minimal impact </li></ul></ul></ul><ul><ul><ul><li>Lower costs maintenance can be considered </li></ul></ul></ul>
  11. 11. Labour costs <ul><ul><li>With critical hardware, IT support labour costs are higher </li></ul></ul><ul><ul><ul><li>More experienced staff to deal with emergencies </li></ul></ul></ul><ul><ul><ul><li>More cover to deal with out of hours emergencies </li></ul></ul></ul><ul><ul><li>With virtualization, critical issues are reduced </li></ul></ul>
  12. 12. ‘ Hidden’ potential cost savings <ul><ul><li>Networking equipment </li></ul></ul><ul><ul><ul><li>Electricity costs </li></ul></ul></ul><ul><ul><ul><li>Heat generation and dissipation </li></ul></ul></ul>
  13. 13. Power consumption <ul><ul><li>Not all switches are created equal </li></ul></ul><ul><ul><ul><li>Power consumption across manufacturers ranges by over 200% </li></ul></ul></ul><ul><ul><li>Data centers require throughput – so Layer 2 is ideal </li></ul></ul><ul><ul><ul><li>Layer 3 switches are more complex, consume more power, and are more expensive </li></ul></ul></ul>
  14. 14. Power supply efficiency <ul><ul><li>Inefficient power supplies generate more direct heat. </li></ul></ul><ul><ul><ul><li>Select power supplies with high efficiencies (>80%) </li></ul></ul></ul><ul><ul><ul><li>More heat means more money spent heating and then cooling the air with air-conditioning </li></ul></ul></ul><ul><ul><li>The difference for a 100W power supply being 70% or 90% efficient in a switch equates to >£20 p.a. </li></ul></ul>
  15. 15. Short cable lengths <ul><ul><li>‘ Green’ Ethernet </li></ul></ul><ul><ul><ul><li>Switches automatically detect copper cable lengths, and reduce transmitted power accordingly </li></ul></ul></ul><ul><ul><li>IEEE standard ‘Energy Efficient Ethernet’ </li></ul></ul><ul><ul><ul><li>In periods of low traffic utilization, the ports are put into a low energy ‘idle’ mode </li></ul></ul></ul>
  16. 16. Energy Efficient Ethernet <ul><ul><li>One Lawrence Berkeley Labs researcher estimated the IEEE effort alone could save $450 million in energy costs a year just in the U.S., $80 million just from data centers </li></ul></ul><ul><ul><li>The researcher estimated that a Gigabit interface card could shave up to 1.5W off its power consumption and a 10Gbit card up to 10W by scaling back data rates at times of low traffic </li></ul></ul>
  17. 17. Inter-connections <ul><ul><li>Different inter-connects vary largely in cost, but also in power </li></ul></ul>Connection Speed Power (Max.) SFP multi-mode 1G 1W SFP copper 1G 1.3W XFP multi-mode 10G 1.4W SPF+ multi-mode 10G 1W SFP+ copper (Twinax) 10G 1W CX4 copper 10G 4W
  18. 18. Turn off the lights!! <ul><ul><li>Many data center or server rooms are kept locked and may not have any humans enter for days at a time </li></ul></ul><ul><ul><ul><li>Turn off the lights to save cost </li></ul></ul></ul><ul><ul><ul><li>Also helps reduce heat </li></ul></ul></ul>
  19. 19. Eco-friendly switches <ul><ul><li>Allied Telesis eco-friendly switches can also turn off their LED indicators </li></ul></ul><ul><ul><ul><li>Manual (via front panel button) </li></ul></ul></ul><ul><ul><ul><li>Auto, after 15 minutes after pressing the button </li></ul></ul></ul><ul><ul><li>Helps save up to 3% of power as it reduces the load on the power supply </li></ul></ul>
  20. 20. Remove the fans <ul><ul><li>For non forced-air systems, some Allied Telesis switches are now so low power that they are fanless </li></ul></ul><ul><ul><ul><li>More reliable – no moving parts </li></ul></ul></ul><ul><ul><ul><li>Less power consumption – no fan to drive </li></ul></ul></ul>
  21. 21. Out of hours operation <ul><ul><li>Do you need to run all the services 24/7? </li></ul></ul><ul><ul><ul><li>Weekends </li></ul></ul></ul><ul><ul><ul><li>Bank holiday </li></ul></ul></ul><ul><ul><ul><li>10pm ~ 5am </li></ul></ul></ul><ul><ul><li>Consider powering down (idle) non-essential items to save power </li></ul></ul>
  22. 22. Power down servers <ul><ul><li>With virtualized applications being hosted on multiple hardware hosts, some hosts can be powered off </li></ul></ul><ul><ul><ul><li>Issue is powering them back on! </li></ul></ul></ul><ul><ul><ul><li>Software and hardware dependent </li></ul></ul></ul><ul><ul><ul><li>One solution is ‘intelligent power strips ’ </li></ul></ul></ul><ul><ul><ul><ul><li>Can power on/off servers via IP over the network </li></ul></ul></ul></ul>
  23. 23. Power down/off - out of hours <ul><ul><li>VoIP phone systems </li></ul></ul><ul><ul><ul><li>Legally you have to have some phones that can connect to the outside world for emergencies </li></ul></ul></ul><ul><ul><ul><li>Other phones can be powered off – as they are powered via Power-over-Ethernet; this is energy from and heat generated in the server room </li></ul></ul></ul><ul><ul><ul><li>Simple ‘configuration scripts’ can power down individual named ports </li></ul></ul></ul>
  24. 24. Power down/off - out of hours <ul><ul><li>Wireless access points </li></ul></ul><ul><ul><ul><li>If no one is present in the building – there is no need for a wireless network </li></ul></ul></ul><ul><ul><ul><li>Uses Power-over-Ethernet technology, so the connected switch can be programmed </li></ul></ul></ul>
  25. 25. Summary <ul><ul><li>Allied Telesis provides Network Infrastructure equipment for use in Data Centers, which can help reduce both the OPEX, and help increase reliability. </li></ul></ul><ul><ul><li>For more information please visit – www.alliedtelesis.com </li></ul></ul>
  26. 26. Thank you for your time
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