Cloud computing has the potential to be more energy efficient than traditional computing by enabling better utilization of computing resources and data centers. However, cloud computing is still developing and the full environmental benefits have not yet been realized. While some view cloud computing as a greener alternative, others are skeptical or think the green benefits are overhyped. As cloud computing continues to grow, making cloud infrastructure and services more energy efficient will be important for cloud computing to truly be considered green.

1. Green
Cloud Computing
Can Clouds Be Green?
Seungyun LEE
<syl@etri.re.kr>
ETRI

2. GREEN VS. CLOUD

4. What is Cloud Computing?

5. New Paradigm Shift
• Value of On-Line Computing
Everything is connected !!!
• from World Wide Web to World Wide Computing
Make it possible everything as-a-service !!!
• Ubiquitous Environments
device, whichever you used !!!

6. It’s Real !
Inevitable ?
OverHype ?
Everything is going to be on the Cloud !!!

7. More than 20 definitions in the world !

8. Definition
• Remarkable
A pool of abstracted, highly scalable, and managed compute
infrastructure capable of hosting end-customer applications and billed
by consumption.
A style of computing in which dynamically scalable and often virtualized
resources are provided as a service over the Internet.
Cloud computing is an emerging approach to shared infrastructure in
which large pools of systems are linked together to provide IT services.
• For business perspective,
Cloud computing is providing IT infrastructure and environment to
develop/host/run services and applications, on demand, with pay-as-
you-go pricing, as a service.

9. The Clouds,
The Outsourcing of everything !
*Source: http://arvino.typepad.com/digital_living/2007/08/the-outsourcing.html

10. CLOUD COMPUTING
On-demand Outsourcing
Pay-as-You-Go
내가 원하는 서비스를 네트워크를 통해 사용하고,
사용한 만큼 지불하는 것

11. Cloud Computing
Private Car vs. Rental or Public Vehicle ?
Cheap Price
Easy
-to-u Pay-as-you-go
se
What
ever-
you-w
ant

12. Cost Device
Independency
Effective
High Location
Agility Independency
Cloud Computing
Multi Sustainability
l!
Tenancy
n ta
R e
Reliability Security
from
fits
Scalability
n e
B e
B ig

13. h ived new
ages of their arc
m ekend to
canned i ver a we
p loaded s t 1TB of data) o onal credit card
York Times u 0 (almos his pers
ew 92 ng infinite
N 1850 -1 Times usi le but fo
r
pa pers from someone in NY en possi
b
( r have be
Ama zon’s S3 this would neve
gain cloud capacity
for $300), a

14. Nothing New Technology in Cloud Computing

15. Related Technologies
• Grid Computing : Resource abstraction !
• Utility Computing : Pay-as-you-go !
• Web Services : Make it being Interoperable !
• SaaS : Software-as-a-Service !
• + Ubiquitous (in near future)
techn ology
tion is KEY
Virtualiza

16. Virtualization Technologies

17. • Public Cloud: the services are delivered to the client via the Internet from a third
party service provider.
• Private Cloud: these services are managed and provided within the organization.
There are less restriction on network bandwidth, fewer security exposures and
other legal requirements compared to the public Cloud.
• Hybrid Cloud: there is a combination of services provided from public and private
Clouds.

18. Components of Cloud Computing
!
Software as a Service (SaaS) Everything as a Service !
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
Network as a Service (NaaS)

19. Cloud Computing, Today

20. Challenging to Cloud Computing

21. Did You Know?
• Despite security concerns, 64 percent of large enterprises
have already deployed desktop virtualization.
Has your organization deployed or does it plan to deploy
desktop virtualization?

22. Benefits & Challenging Issue
sy-t o-use
Ea
Pay for wha
t you use
Secur
ity
Perfo r mance

23. Market Estimation
billion.
h $150.1 R) is 26.5%.
will reac ate (CAG
The market l growth r
ompound annua ner 2009)
The c (Gart
!

24. Obstacles & Opportunities
*Source: ISO/IEC JTC 1 SWG-Planning Report (N9687)

25. Standardization Activity
Standardization Org. Participants
Open Grid Forum (OGF) Microsoft, Sun Microsystems, Oracle, Fujitsu, Hitachi, IBM,
Intel, HP, AT&T, eBay, etc
Cloud Computing Interoperability
Cisco, Intel, Thomson Reuters, Orange, Sun, IBM, RSA, etc
Forum (CCIF)
Distributed Management Task Force (Board Member) IBM, Microsoft, Novell, Oracle, Sun
(DMTF) Microsystems,VMware, EMC, etc
Open Cloud Consortium (OCC) Cisco, MIT Lincoln Labs,Yahoo, various colleges including
the University of Illinois at Chicago
Cloud Security Alliance (CSA) eBay, ING, Qualys, PGP, zScaler, etc
ETSI
inning stage”
OASIS “ Still, ve ry beg
Object Management Group (OMG)
ISO/IEC JTC 1 SGCC (Study Group on
*First Dejure Standard Body for Cloud Computing
Cloud Computing)

26. Can Clouds Be Green?

27. S aS
a W
WW
GreenIT
Virtua
lizatio
n
Cloud Computing is one of Green Computing

28. 0% 10% 20% 30% 40% 50% 60% 7
• Traditional methods of being green still dominate – like recycling and renewable energy.
Do you view cloud computing
• Forty-nine percent of companies have taken the first steps to being green, while twenty-two percent have taken significant steps, which is up five
percent from last year.
• Only twenty-one percent have put their green initiatives on hold due to the2008
economic climate. 2009
as a greener alternative
• Thirty-one percent of customers had also undertaken data center consolidation, which is both a cost savings and environmentally friendly initiative.
• Seventy-one percent of respondents said they use traditional methods of environmental sensitivity such as recycling.
to traditional computing infrastructures?
A new question was added to the survey this year. Rackspace asked whether customers viewed cloud computing as a greener alternative to traditional computing
infrastructure.
10. Do you view cloud computing as a greener alternative to traditional computing infrastructures?
• Twenty-one percent agreed that cloud computing was a much greener alternative, while thirty-five percent were not convinced on its green benefits.
• Nineteen percent said the true benefits of cloud computing have not yet been realized.
우드 컴 퓨팅이
THE GREEN PERSONAS OF SURVEY RESPONDENTS FELL INTO 3 DISTINCT GROUPS
21%만
The Cynics
이 클라 The Middle Ground The Greens
아직 은 이라고 믿음,
• Think green is hype & marketing “greenwash”
• Skeptical of the intentions & qualifications of
• Want to do the right thing, but don’t necessarily
have the resources or funds for the green
• Having a green image is important
• Evaluate green best practices at all levels of
그린 화 기술
‘green’ vendors
이라고 생각 initiatives they want to undertake their business
나 과장
• However, most are willing to recycle etc, as a • Will pursue simple initiatives to promote being • Select potential vendors based on their green
않거
means to keep the world a more pleasant place green over money savings (i.e. paperless office, credentials
는 믿지
to live home offices) • Willing to pay a premium for green vendors
나머지
• Will pursue energy efficiency as a means to save • Not always comfortable with some green topics • Believe they have a personal responsibility
money • Think “green” is cool • Actively pursue green accreditation
Am not convinced on the green benefits of cloud computing.............................................35%
• If a green vendor can save them money, great,
otherwise a vendor should concentrate on ~50%
providing Toobest service & product possible, green benefits of cloud computing ..........................................25%
the much hype around the
~25%
not being green
Yes, cloud computing is a much greener alternative ...........................................................21%
~25%
The true green benefits of cloud computing have not yet been realized .............................19%
Toll Free: 1.800.961.2888 | International: 1.210.312.4700 | www.rackspace.com
Copyright © 2009 Rackspace Hosting, Inc. | All trademarks, service marks, images, products and brands remain the sole property of their respective holders. | MODIFIED DATE: 08272009
RACKSPACE® HOSTING | 9725 DATAPOINT DRIVE | SAN ANTONIO, TX 78229 U.S.A.
2009 RACKSPACE GREEN SURVEY

29. • Traditional methods of being green still dominate – like recycling and renewable energy.
• Forty-nine percent of companies have taken the first steps to being green, while twenty-two percent have taken significant steps, which is up five
How does cloud computing fit into
percent from last year.
• Only twenty-one percent have put their green initiatives on hold due to the economic climate.
• Thirty-one percent of customers had also undertaken data center consolidation, which is both a cost savings and environmentally friendly initiative.
your environmental initiatives?
• Seventy-one percent of respondents said they use traditional methods of environmental sensitivity such as recycling.
A new question was added to the survey this year. Rackspace asked whether customers viewed cloud computing as a greener alternative to traditional computing
1. How does cloud computing fit into your environmental initiatives?
infrastructure.
• Twenty-one percent agreed that cloud computing was a much greener alternative, while thirty-five percent were not convinced on its green benefits.
• Nineteen percent said the true benefits of cloud computing have not yet been realized.
THE GREEN PERSONAS OF SURVEY RESPONDENTS FELL INTO 3 DISTINCT GROUPS
The Cynics
컴퓨팅 은 아직 The Middle Ground The Greens
라우드 생각
• Think green is hype & marketing “greenwash” • Want to do the right thing, but don’t necessarily • Having a green image is important
%가 클 니라고
• Skeptical of the intentions & qualifications of have the resources or funds for the green • Evaluate green best practices at all levels of
46 환이 아
‘green’ vendors initiatives they want to undertake their business
략의 일
• However, most are willing to recycle etc, as a • Will pursue simple initiatives to promote being • Select potential vendors based on their green
경 전
means to keep the world a more pleasant place green over money savings (i.e. paperless office, credentials
리의 환
to live
Cloud computing is critical to our company becoming greener .....................................................................7% vendors
home offices) • Willing to pay a premium for green
우 • Will pursue energy efficiency as a means to save
money
• Not always comfortable with some green topics
• Think “green” is cool
• Believe they have a personal responsibility
• Actively pursue green accreditation
Cloud vendor can save them money, great, overall environmental strategy ..........................................................46%
computing is not a part of our
• If a green
otherwise a vendor should concentrate on ~50%
providing the best service & product possible,computing and its environmental benefits..............................................14%
We are currently evaluating cloud
~25%
not being green
We have considered the benefits of cloud computing as part of our overall environmental strategy............13%
~25%
Would be interested in learning more about the green benefits of cloud computing...................................20%
Toll Free: 1.800.961.2888 | International: 1.210.312.4700 | www.rackspace.com
Copyright © 2009 Rackspace Hosting, Inc. | All trademarks, service marks, images, products and brands remain the sole property of their respective holders. | MODIFIED DATE: 08272009
RACKSPACE® HOSTING | 9725 DATAPOINT DRIVE | SAN ANTONIO, TX 78229 U.S.A.
2009 RACKSPACE GREEN SURVEY

30. Green vs. Cloud
Energy Efficiency Business Efficiency
Efficiency itself is GREEN !

31. Virtualization itself is being GREEN !
Resource
Saving
Cost
Saving Energy
Saving

32. 그린 클 라우드
현재 대 부분의 터임 !
그린 데이터센
비즈 니스는
Energy Efficiency Data Center by CLOUD

33. Example of
Australian Open
Web Site

34. Green IT Strategy via Cloud

35. Can Cloud be Green?
Cloud comput
concerns, but ing may raise
this growing p privacy and se
ractice could h curity
advantage: fa ave one clear
r better energ
custom data c y efficiency, th
enters now ris anks to
ing across the
- David Talbot country.
writes in
MIT's Technolo
gy Review

36. Can Cloud be Green?
In theory, a sha
red resource li
clouds can hav ke Amazon or
e higher utiliza Google's public
efficiency. Loca tion and thus g
te your cloud d reater power
power source, ata center clos
like a hydro pla e to a green
transmission li nt, and you can
ne power losse minimize
s and be even
greener.
- Mark Ha
milton writes o
n his sun.com
blog

37. Mobile Cloud Computing

38. Mobile Cloud vs. Green?
rs to Tota l Nearly
mputing Subscribe
bile Cloud Co ion by 2014. earch, 20
09
Mo One Bill - ABI Res
Cloud-bas
device op ed enterp
erating sy rise mobility ! It r
enabling stems, pr educes th
access to oviding ea e significa
reduces t applicatio sier multi nce of
he amoun ns from m -vendor s
t of data ass-mark upport an
stored on et handse d
security r
isk if a ha the device, reduc ts; it
ndset is lo ing some
st.

39. Can Cloud be Green?
기 힘들 지만,
확히 말하 우 큼
아 직은 명 ) 절감효 과는 매
것은 비 용(?
분명한

40. Cloud Computing, Tomorrow
Desktop Cloud
Entertainment Cloud Storage/Data Cloud
Mobile Cloud
e-Book Cloud
e-Learning Cloud Future
Clouds
Social Cloud
Cloud Office
Heath-care Cloud
IPTV | Media Cloud
Energy Efficiency | Green Cloud
: © ETRI 2009

41. Toward the GreenWeb

42. Thank You
Seungyun LEE, ETRI
E-mail: <syl@etri.re.kr> <syl@w3.org>
Tel. 042-860-5508