What is Green Computing ?

Green Computing is the term used to donate efficient use of resources in computing.

It is also Known as Green IT.

Green Computing is “ Where organizations adopt a policy of ensuring that the setup and operations of Information Technology produces the minimal carbon footprint” .

What is Green Computing ? (cntd.)

Green Cloud is “ the study and practice of designing, manufacturing , using and disposing of computers , servers and associated subsystems .

Key issues are energy efficiency in computing and promoting environmentally friendly computer technologies .

Goal of Green Computing –

• The goals of green computing are similar to green chemistry.

• Minimize energy consumption.

• Purchasing green energy.

• Reducing travel requirements for employees/costumers .

What is Cloud Computing ?

• Cloud computing is a metaphor used by Technology or IT Services companies for the delivery of computing requirements as a service to a heterogeneous community of end-recipients.

• It is a Virtualized Computing Platform .

• Scalable use of computing resources .

CLOUD SERVICE MODELS

1.Software as a Service:The software is present on clouds and all type processing is done on cloud only. This feature allows users to access the software from any computer which is connected to the internet.

2.Storage as a Service:

This service allow user tooutsource their data storageneeds to the cloud. The userstore all his/her files on cloudbut the all kind of processingis done on user’s PC

3.Processing as a Service:

This model provides user the functionality to process complex computation on cloud which consists of powerful servers. Tasks which demand less processing power are carried on user’s PC only.

SUMMARY OF MODELSSoftware as a Service

Storage as a Service Processing as a Service

Location of Processing

Cloud ClientShort task at client,

Large tasks in cloud

Location of Storage Cloud Cloud Client

Function of Transport Transmit commands

and receive resultsAll files/documents Files for large tasks

Green Cloud Computing

• Green Cloud computing is used to achieve not only efficient processing and utilization of computing infrastructure, but also minimize energy consumption .

• It is also called as GREEN IT.

• Practice of using computer products efficiently.

Goals Of Green Cloud Computing:

• Reduce the use of hazardous material , it causes harm to environment .

• “Green” Data Centers.

• Using recycle materials.

• Supply Chain Energy Usage.

ADVANTAGES OF GREEN CLOUD COMPUTING

Working of Green Cloud

Public Cloud B

PrivateCloud

End User

Carbon Emission Directory

Public Cloud A

a) Request

a cloud

service

d) Allocate

service

e) Request

service

allocation

c) Request

energy

efficiency

information

Green Offer Directory

b) Request

any green

offerRouters Internet

Green Broker

Green IT in developing regions

• Development of ICT

• Moving Processor and Data closer to the User

• Public Policy measures-Germany example, PPP

• Locating Data Centers in the developing world

• Economic Growth

Benefits

Elastic

Market

Oriented

(Pay As

You Go)

VirtualizedService

Oriented

Dynamic

&

Distributed

Shared

(Economy of

Scale)

Cloud

Computing

Dark side

• Gartner Report 2007: IT industry

contributes 2% of world's total CO2

emissions

• U.S. EPA Report 2007: 1.5% of total U.S.

power consumption used by data centers

which has more than doubled since 2000

and costs $4.5 billion

Computer Rm. AC 34%

Server/Storage 50%

Conversion 7%

Network 7%

Lighting 2%

Compute resources and particularly servers are at the heart of a complex, evolving system!

Where Does the Power Go?

Power Consumption in the Datacenter

3/26/201523

Green Cloud Computing Architecture

1. Consumers/Brokers:

• Cloud consumers or their brokers submit service requests from anywhere in the world to the Cloud. It is important to notice that there can be a difference between Cloud consumers and users of deployed services. For instance, a consumer can be a company deploying a Web application, which presents varying workload according to the number of users accessing it.

2. Green Resource Allocator:

• Acts as the interface between the Cloud infrastructure and consumers. It requires the interaction to support energy-efficient resource management.

3.Virtual Machines (VMs)

• Multiple VMs can be dynamically started and stopped on a single physical machine to meet accepted requests, hence providing maximum flexibility to configure various partitions of resources on the same physical machine to different specific requirements of service requests.

4. Physical Machines:

• The underlying physical computing servers provide hardware infrastructure for creating virtualized resources to meet service demands.

Go Green!!!

• Presented a Carbon Aware Green Cloud Framework to improve the carbon footprint of Cloud computing

• Lots of research to be carried out

• Maximizing Efficiency of Green Data Centers

• Developing Regions to benefit the most