3. Myth & Facts
● Myths
● Cloud computing will eliminate the need for IT personnel.
● Cloud computing will eliminate IT expense.
● Facts
● Cloud technology is real.
● This technology should not be ignored.
● This technology makes life of developers and businesses easy.
4. What is NOT cloud computing?
● It is not Network Computing.
● Application and Data are not confined to any specific Company’s server.
● No VPN Access
● It is not traditional outsourcing.
● No subcontracting for computing services for specific outside firm.
6. Web 2.0 & Clouds
● Web 2.0 concentrate on the private user and clouds are descendents of data
centers which service the Enterprise.
● However Web 2.0 promoted SaaS which is part of the cloud.
● Web 2.0 companies needed massive scaling technologies which promoted cloud.
● User centric Web2.0 companies are relaying on Cloud Service.
8. Cloud Computing Features
● Self-service provisioning
● Flexibility
● Pay-per-use
● Maintenance of the servers is easy
● Location free
● Backup
● Scalability
9. Virtualization
● Virtualization is a term that refers to the abstraction of computer resources.
● Virtual Machine (VM), a software implementation of a machine (computer) that
executes programs like a real machine.
10. Types of Virtualization
● Hardware Virtualization
● Operating System Virtualization
● Server Virtualization
● Storage Virtualization
15. Public Cloud
The services are delivered to the client via the Internet from a third party service
Provider.
Eg: Amazon Web Services
16. 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.
Eg: HP Data Centers
17. Hybrid Cloud
There is a combination of services provided from public and private clouds.
Eg: ERP in Private cloud
18. Challenges
● Bandwidth cost
● Continuous monitoring and supervision
● Security concerns
● Data access and integration
● Proper usability
● Migration issues
● Cost assessment
19. SaaS Pros & Cons
● Speed
● Reduced up-front cost, potential
for reduced lifetime cost
● Transfer of some/all support
obligations
● Elimination of licensing risk
● Elimination of version
compatibility
● Reduced hardware footprint
● Extension of the security model
to the provider (data privacy
and ownership)
● Governance and billing
management
● Synchronization of client and
vendor migrations
● Integrated end-user support
● Scalability
Pros Cons
20. PaaS Pros & Cons
● Pay-as-you-go for development,
test, and production
environments
● Enables developers to focus on
application code
● Instant global platform
● Elimination of H/W
dependencies and capacity
concerns
● Inherent scalability
● Simplified deployment model
● Governance
● Tie-in to the vendor
● Extension of the security model
to the provider
● Connectivity
Pros Cons
21. IaaS Pros & Cons
● Systems managed by SLA should equate
to fewer breaches
● Higher return on assets through higher
utilization
● Reduced cost driven by less hardware,
floor space from smaller hardware
footprint fewer administrators
● Lower power consumption
● Able to match consumption to demand
● Extension of the security model
to the provider (data privacy
and ownership)
● Governance and billing
management
● Synchronization of client and
vendor migrations
● Integrated end-user support
● Scalability
Pros Cons