Infrastructure as a Service (IaaS) delivers computing infrastructure on-demand, allowing users to rent servers, storage, and networking resources instead of purchasing them. It is suitable for volatile demand situations, startups without upfront capital, rapidly growing companies, trial needs, and specific regulatory environments. However, it may not be appropriate for situations requiring dedicated infrastructure due to performance needs.

1. Infrastructure as a Service (IaaS)
Computing elements as service on demand
Introduction to Cloud Engineering
http://cloud-engineering-india.blogspot.in
http://youtube.com/user/dastikop

2. At the end of the this lesson learner be able to
● Articulate the meaning of IaaS,
● Appreciate its characteristics
● know some of its appropriate uses and
● where IaaS inappropriate
Learning Objectives

3. ● Infrastructure as a service ( IaaS) is a means
of delivering computing infrastructure as
an on- demand service.
● It is one of the three fundamental cloud
service models
Infrastructure as a Service

4. Iaas provides the following
● Servers- compute, machines
● Storage
● Network
● Operating system
Computing Infrastructure

5. The user instead of purchasing- servers,
software, data center space or network
equipment, rent those resources as a fully
outsourced service on-demand model.
How does IaaS Works?

6. IaaS can be obtained as
(1) Public or
(2) Private infrastructure or
(3) combination of both
Public Cloud is considered infrastructure that consists of shared
resources, deployed on a self-service basis over the Internet.
Private cloud incorporates some of cloud computing features such
as Virtualization, but does so on a private network
IaaS- Categories

7. ● Resources are distributed as a service
● Allows dynamic scaling ( 1...10....100.....)
● Has a variable costs-
● Generally includes multiple-users on a
single piece of hardware. (multi-tenancy)
IaaS- Characteristics

8. IaaS is useful in the following situations
1.
● where demand is very volatile- any time there are significant
spikes and troughs in terms of demand on the infracture
o amazon.in, snapdeal, flipkart- during festival season
IaaS- Appropriate uses

9. IaaS is useful in the following situations
2.
● For new enterprise without capital to invest in hardware
o entrepreneurs starting on a shoestring budget
IaaS- Appropriate uses

10. IaaS is useful in the following situations
3.
● Where the enterprise is growing rapidly and scaling hardware
would be problematic
o a company that experience huge success immediately
IaaS- Appropriate uses

11. IaaS is useful in the following situations
4.
● Where the enterprise is growing rapidly and
scaling hardware would be problematic
o a company that experience huge success
immediately - animato, pinterest
IaaS- Appropriate uses

12. IaaS is useful in the following situations
5.
For specific line of business, trial or temporary
infrastructural needs
IaaS- Appropriate uses

13. ● Where regulatory compliance makes the offshoring or
outsourcing of data storage and processing difficult
o personal information, medical information can not be stored
in another country
● Where the highest levels of performance are required, and on-
premise or dedicated hosted infrastructure has the capacity to
meet the organization’s needs
o network latency,
IaaS- inappropriate use

14. ● IaaS is one of three fundamental cloud service models
● IaaS provides basic computing resources- storage, servers,
software networks
● Iaas resources are provided on-demand and utility model
Conclusion