15-11-2012, 01:26 PM
Energy in Cloud Computing andRenewable Energy
Energy in Cloud Computing.pptx (Size: 2.55 MB / Downloads: 69)
Energy in Cloud Computing
Data Center as a Computer
E-book by google by Luiz André Barroso and Urs Hölzle
Cloud Computing – the IT solution for the 21st century
Carbon Disclosure Project Study 2011
Introduction
Energy Consumption of data centers is considerable
3% of total annual energy consumption in US
Double from 2006 (1.5%)
Growing even more
Estimated by Environmental Protection Agency EPA
Warehouse Scale Computers
WSC a type of datacenter
WSC host hardware and software for multiple organizational units or even different companies on shared resources
Energy usage in WCS
Peak power usage of one generation of WSCs deployed at Google in 2007
CPU is NOT the sole energy consumer
No one subsystem dominates
Data Center Energy Efficiency
PUE (Power Usage Effectiveness): Relates to the facility
the ratio of total building power to IT power, i.e. the power consumed by the actual computing equipment (servers, network equipment, etc.)
85% of current datacenters were estimated in 2006 to have a PUE of greater than 3.0
the building’s mechanical and electrical systems consume twice as much power as the actual computing load;
only 5% have a PUE of 2.0