Basics of Cloud Computing from the management perspective

1. PRESENTATION
ON
CLOUD COMPUTING FROM MANAGERS
PERSPECTIVE
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2. CONTENTS
 Introduction
 What is cloud computing
 Cloud Computing Characteristics
 Benefits of Cloud Computing
 Cloud Services
 Cloud Deployment Models
 Trends in Cloud Computing
 Some of Cloud Players
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3. INTRODUCTION
 With the technology advancement, particularly
ubiquitous high-speed internet connectivity and the
ever-decreasing cost of storage have finally made
the realization of cloud computing.
 Cloud computing denotes the infrastructure as a
cloud in which businesses and users are able to use
applications from anywhere in the world on
demand.
 Thus, computing is being transformed to a model
consisting of services that are commoditized and
delivered in a manner similar to utilities such as
electricity, gas and telephony.
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4. CONTD..
 The NIST working definition summarizes cloud
computing as:
 a model for enabling convenient, on-demand
network access to a shared pool of configurable
computing resources (e.g., networks, servers,
storage, applications, and services) that can be
rapidly provisioned and released with minimal
management effort or service provider interaction
 Clouds are a large pool of easily usable and
accessible virtualized resources (such as hardware,
development platforms and/or services). These
resources can be dynamically re-configured to
adjust to a variable load (scale), allowing also for
optimum resource utilization. This pool of resources
is typically exploited by a pay-per-use model in
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5. CLOUD CHARACTERISTICS
 Scalability - Cloud computing allows an organization
to scale up or down their IT requirements quickly and
efficiently, without hampering productivity.
 Self-Service and On-demand Service - Cloud
computing is based on self- service and on demand
service models. The user should be able to access
computing capabilities as and when they are needed.
 Quality of Service - Cloud computing must assure
the best service level for users. Services outlined in
the service level agreement must include guarantees
on round the clock availability, adequate resources,
performance and bandwidth.
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6. CONTD..
 Virtualization - It is the technology that abstracts
the coupling between the hardware and operating
system. it refers to the abstraction of logical
resources away from their underlying physical
resources in order to improve agility, flexibility.
 Versatility- Cloud computing does not aim at
certain special application. It can produce various
applications supported by cloud, and one cloud can
support different applications running at the same
time.
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7. CLOUD COMPUTING BENEFIT
 Cloud computing allure business
organization in at least two dimensions.
 Firstly cloud can free companies from
drudgery of building and maintaining IT
infrastructure so that firm can focus on value
creating resources.
 Secondly cloud provide flexibility in the form
of high elastic scalability, enabling
organizations to rapidly increase or decrease
their IT infrastructure as fast as their
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8. TYPES OF CLOUD SERVICES
 Software as a service (SaaS)
 Infrastructure as a Service (IaaS)
 Platform as a Service (PaaS)
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9. SAAS
 This is the most familiar and prolific cloud service of
all.
 It provides any software application as a service
through the cloud.
 Today there is a whole range of software
applications available through SaaS, be it ERP, CRM,
workflow system, document management and
much more.
 The cloud service providers offers these services
and the users pay as they use the same.
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10. IAAS
 IaaS is the delivery of computer infrastructure as a
service.
 This give the organization control over different
resources and applications.
 These resources comprise of storage, hardware,
servers, networking components, etc.
 Apart form the higher flexibility, a key benefit of
IaaS is the usage-based payment scheme.
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11. PAAS
 PaaS is a service delivery model in which service
provider provide developers with a platform
including all the system and environments
comprising the end to end life cycle of developing,
testing deploying and hosting of sophisticated web
applications as a service.
 Cost effectiveness is one of the prime benefits of
PaaS
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12. CLOUD DEPLOYMENT MODELS
 Private Cloud
 Public Cloud
 Hybrid Cloud
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13. PRIVATE CLOUD
 A private cloud refers to having user’s own private
cloud computing infrastructure.
 Instead of relying on an external, public cloud service
provider's infrastructure, user have their own.
 A private cloud is more suited for a large enterprise
because it has already invested heavily in its
infrastructure, data center application etc..
 This model does not bring much it terms of cost
efficiency, still it brings in tremendous value from a
security point of view.
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14. PUBLIC CLOUD
 It refers to the resources (hardware, software,
applications) that a service provide offers over the
internet.
 The deployment of a public cloud computing
system is characterized on the one hand by the
public availability of the cloud service offering and
on the other hand by the public network that is
used to communicate with the cloud service.
 The key benefits of moving to a public cloud is that
user do not have to worry about managing the
underlying IT infrastructure, no security patches or
updates to apply, no software upgrades etc.
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15. HYBRID CLOUD
 As the name implies it is a cloud computing
environment that consists of internal/external
provider i.e. a mix of private and public clouds.
 Secure and critical applications are hosted by
organizations in the private cloud while not so
critical ones are hosted in the public cloud.
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16. CLOUD COMPUTING DEPLOYMENT AND SERVICE
MODELS
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17. SERVICE LEVEL AGREEMENT
 As the customer move towards adopting Service
Oriented Architecture, the quality and reliability of
the service become important aspects.
 A service-level agreement is a negotiated
agreement between two or more parties, where one
is the customer and the others are service
providers.
 The SLA records a common understanding about
services, priorities, responsibilities, guarantees, and
warranties. Each area of service scope should have
the "level of service" defined.
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18. CONTD..
 The SLA may specify the levels of availability,
serviceability, performance, operation, or other
attributes of the service, such as billing.
 The "level of service" can also be specified as
"expected" and "minimum," which allows customers
to be informed what to expect (the minimum), while
providing a measurable (average) target value that
shows the level of organization performance.
 SLAs commonly include segments to address: a
definition of services, performance measurement,
problem management, customer duties, warranties,
disaster recovery, termination of agreement.
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19. TRUST IN CLOUD COMPUTING
 Many enterprise customers are hesitant to buy cloud
offerings due to governance and security concerns.
 Many potential users of cloud services lack confidence
that cloud providers will adequately protect their data
and deliver safe and predictable computing results.
 Customers must trust the security and governance of
the cloud environment in order to have confidence that
their data will be protected and its integrity maintained.
 Many potential cloud customers are also looking for
some level of assurance that appropriate security
measures are indeed being properly implemented in
the daily operations of the cloud infrastructure.
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20. CONT..
 Broadly speaking, trust means an act of faith;
confidence and reliance in something that’s expected
to behave or deliver as promised.
 We trust a system less if it gives us insufficient
information about its expertise. Mere claims such as
“secure cloud” or “trust me” don’t help much to
boost the trust level of consumers unless sufficient
information is presented with the services.
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21. FACTORS THAT EFFECT TRUST
 Control - We do not trust a system less when we
don’t have much control over our assets.
 Ownership - We can also see a variation of trust,
depending on the ownership of data assets.
 Prevention - Trust in cloud computing is related
more to preventing a trust violation than to
guaranteeing compensation when a violation occur.
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22. CONT..
 Security - Security plays a central role in preventing
service failures and cultivating trust in cloud
computing.
 In particular, cloud service providers need to secure
the virtual environment, which enables them to run
services for multiple clients and offer separate
services for different clients.
 In the context of virtualization, the key security
issues include identity management, data leakage
(caused by multiple tenants sharing physical
resources), access control, virtual machine (VM)
protection, persistent client-data security, and the
prevention of cross-VM side-channel attacks.
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24. TRENDS IN CLOUD COMPUTING
 During coming 5 years data stored in various
storage systems will increase by 44 times, with the
current rate of data growth.
 It wouldn't be possible for enterprises to increase
their IT budget and scale up their IT infrastructure
with the information explosion that is happening.
 In such instances, cloud computing is increasingly
being looked at by the enterprises as a great
alternative as it lets them scale up or down, save
organizations money, decrease the time to market.
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25. CONT..
 Cisco estimates
that close to 12
percent of
enterprise
workloads will run
in the cloud by
the end of 2013.
This, in turn, will
yield a market for
public-cloud
services of
approximately
US$43 billion.
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26. ADVANTAGES OF CLOUD SERVICES
Workloa
d Type
Current challenges Advantages of
SaaS/IaaS/PaaS
ERP Spiky resource demand
Customers want to
customize the
application
IaaS provides
flexibility
DSS Seasonal variations and
short term projects
Large data sets
expensive to manage
With adequate
latency (I/O) and
security, IaaS
improves efficiency
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Application
development
and testing
Developers
make
unplanned
resource
requests
Requirements
on testing
environments
huge and
volatile
Cloud (IaaS or
PaaS can
improve speed
quality and cost
of development
and testing

28. CONT..
 Currently the trend is that larger enterprises are
exploring public clouds for support applications such
as Dealer Management Systems, Document
Management System, mailing, CRM and learning
solutions.
 The large enterprises having substantial “On-premise”
IT with many legacy applications and systems are
looking to optimize their IT through private clouds.
 The concept of Hybrid clouds, is yet to gather
momentum. This will happen once public clouds
providers begin to follow open standards that will
enable seamless integration with apps or service
running on premise.
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29. CONT..
 Public clouds that can be accessed cheaply and
without a big IT overhead are likely to be chosen by
small, developer friendly companies.
 Several new cloud security trends are also
emerging. The cloud will enable small companies to
access powerful application, security technologies
through new subscription models.
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30. CONT..
 Public cloud computing will defeat internal
clouds.
 There is not much of a chance that an internal
cloud can possibly provide the same computing
power as a huge public cloud going forward.
 Compared to large public clouds, private clouds
created by companies don’t really seem like clouds
at all, but rather a form of virtualization: nothing
but virtual machines shared by a collection of
employees.
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31. CONT..
 These private systems lack the ability to operate
without a dedicated IT team. This makes adoption
of private clouds less realistic for small businesses.
Private clouds are simply more expensive and less
flexible than the alternative. As a result, private
clouds are not likely to grow in popularity this year.
 Cloud Application Protection:
 The exciting new technology enables companies to
scan and protect the source code on web
applications.
 Application protection repeatedly tests an
application to see if changes in code were made,
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32. CONT..
 Establishing trust in cloud computing will
undoubtedly require identity and data privacy
through encryption. It also require data integrity.
 Advances in cryptography are addressing the issue
of confidentiality.
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33. SOME OF CLOUD PLAYERS
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34. HTTP://AWS.AMAZON.COM/EC2/

35. 11/4/2022
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36. HTTP://WWW.3TERA.COM/

37. HTTP://WWW.FLEXISCALE.COM/

38. GOOGLE APP ENGINE

39. HTTP://WWW.SALESFORCE.COM/PLATFORM/

40. THANK YOU
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