Increasing Energy Efficiency

Transcription

1 Increasing Energy Efficiency IT Room Infra 2011 de Kuip Pieter Heijnen Nexans Cabling Solutions 1

2 Connecting the dots, in a reliable way 2

3 Consider design & flexibility of structured cabling 3

4 Trends IT will be more polluting than (the Economist) Unrestrained IT power consumption could eclipse hardware costs and put great pressure on affordability, data center infrastructure and the Luiz André Barroso, (Google) 4

5 How to reduce energy consumption? 1. Power down servers and switches when idle 2. Reduce power when transceivers are in use 3. Monitor and manage where energy is used 4. Consider design and flexibility of structured cabling 5

6 Power down servers and switches when idle ~ 80% ~ 90% Servers in idle state use up to 80% of full load power Switches in idle state use up to 90% of full load power Energy Efficient Ethernet (EEE): Low Power Idle Puts devices to sleep Wake-On-LAN Brings devices back out of sleep 6

7 Power down servers and switches when idle Bron: Bron: infoworld 7

8 Power Saving with EEE Large energy savings possible (e.g. up to 58% saving at 40% utilisation) Works on Ethernet auto-negotiation Requires copper cabling auto-negotiation not available on fibre External noise could affect recovery time Shielded cabling better choice 8

9 Reduce power when transceivers are in use Full Power power Backoff using 10GBase-T Turn down transmit power over shorter distances Full power 9

10 Benefits of higher grade cabling 10

11 Benefits of higher grade cabling Example: 50m Channel: Class EA Insertion Loss > 16.5dB Class EA PBO 10dB LANmark 7a Channel Insertion Loss 13.6dB LANmark 7a PBO 12dB Lower transmit power = greater energy savings Power Backoff Scale Length (m) IL 250 MHz (db) Backoff (db) 0-25 < > IEEE Power Backoff Scheme 11

12 Reduce power when transceivers are in use (2) 12

13 Data Centre design flexibility Top of Rack or Structured Cabling? 13

14 Top of Rack configuration Advantages: Cost saving on horizontal copper cabling Reduction volume of cables under floor Suitable for high density blade servers fibre copper Disadvantages: Poor Switch port utilisation Inefficient Power consumption Extra Maintenance & administration Expensive & difficult Scalability Configuration flexibility? Extra Cost of switches 14

15 Structured Cabling in data centres Disadvantages: More cables needed More racks needed Length restrictions on horizontal copper cabling to be respected fibre copper Advantages: Increased switch port utilisation Superior energy efficiency Quickly adapt the system Easier network expansion Excellent flexibility Overall lower cost of ownership 15

16 Benefits of structured copper cabling No air dams LANmark 6A - Shorter links 5m compared to 15m No hotspots Design flexibility - Longer length, 100m compared to 7m twinax infiniband - Better port utilisation 16

17 Monitor and manage where energy is used EMAC Horizontal PDU - manageable Reports for power usage / temperature / humidity EMAC Rackmanager 17

18 Benefits of higher grade copper cabling 18

19 Summary So basically we can save energy due to: 1. Power down servers and switches when idle 2. Reduce power when transceivers are in use 3. Monitor and manage where energy is used 4. Considering design and flexibility of structured cabling 19

20 More on Energy Efficiency

21 Connecting the dots, in a reliable way 21

22 Invitation to meet Nexans experts We are happy to invite you, and meet our Nexans Experts: 1. Showcasing our latest LAN innovations LANmark 6A (multipair & preterm), LANmark 7A & GG45 LANmark OF (MPO solution ready for 40/100G) LANsense Intelligent Infrastructure Management 2. Discussing and help you with: latest (DC) standardisation energy efficiency network strategy & design Located in Buizingen (Belgium) near Brussels 22

23 Vragen? Pieter Heijnen Nexans Cabling Solutions 23