Cloud computing is a model that provides on-demand access to a shared pool of configurable computing resources like networks, servers, storage, applications and services. It has characteristics like on-demand self-service, broad network access, resource pooling, rapid elasticity and measured service. Key enablers of cloud computing include virtualization, democratization of computing through scalable infrastructure, fast provisioning, and commoditization of infrastructure. Common categories are SaaS, PaaS and IaaS.

1. Cloud Computing
REVOLUTION – NO EVOLUTION
PEDRO ALEXANDER ROMERO

2. Cloud Computing
Agenda
- Definition
- Cloud Services Characteristics
- Enablers
- Virtualization
- Democratization of Computing
- Scalability and fast provisioning
- Commoditization of infrastructure
- Categories within Cloud Computing

3. Cloud Computing
Definition:
Cloud Computing is a model for enabling convenient, on-
demand network access to a shared pool of configurable
computing resources:
• NETWORKS
• SERVERS
• STORAGE
• APPLICATIONS
• SERVICES
that can be rapidly provisioned and released with minimal
management effort or service provider interaction.

4. Cloud Computing
Definition:
Product your own electricity vs. Paid per consume
From Water-Wheel to Utility Power

5. Cloud Computing
Cloud Service Characteristics
• On-demand self service
Possibility for end users to sign up an receive the service without delays
• Broad network access
Service can be accessed via standards platforms
• Resource pooling
Resources are pooled across multiple customers
• Rapid elasticity
Capacity can scale to cope with demand peaks
• Measured service
Billing is metered and delivered as a utility service

6. Cloud Computing
Enablers:
I. Virtualization – The ability to increase computing
efficiency
II. Democratization of computing – Bringing enterprise
scale infrastructure to small and medium businesses
III. Scalability and fast provisioning – Bringing web scale
IT at a rapid pace
IV. Commoditization of infrastructure – Enabling IT to
focus on the strategic aspects of its role
Cloud Computing: Need all Enablers working together

7. Cloud Computing
I. Virtualization:
The ability to increase computing efficiency
Enabling pseudo-servers to be run on one physical device.
The division of a single physical
server into Multiple “virtual”
servers containing multiple sets
of segregated data.
Cloud Computer Backbone

8. Cloud Computing
I. Virtualization:
The ability to increase computing efficiency
Increase
• Flexibility
• Resource allocation
• Efficiency gains in terms of processing power
Decrease
• Electric power
• Space
• Cooling

9. Cloud Computing
II. Democratization of computing:
Bringing enterprise scale infrastructure to small and
medium businesses
Easy business development, enabling saving in:
• Hardware
• Software Licenses
Ability for small and medium companies to rapidly scale
infrastructure to levels only achieved by largest organizations.

10. Cloud Computing
III. Scalability and Fast Provisioning:
Cloud Computing enables organizations to:
1. Maintain infrastructure at required levels at all
times
2. Cost saving originated in the aggregated cost per
unit. Paying only for what is required when is
required
Despite the cost per Unit from an Utility Service
Provider, can be higher than an owned resource.

11. Cloud Computing
III. Scalability and Fast Provisioning:
For Organizations where
workload has processing
picks.
There are two situations:
1. Over provision of servers:
Creating unused capacity and
higher cost per process.
2. Under provision of servers:
Creating impacts in terms of
quality of service levels.

12. Cloud Computing
IV. Commoditization of Infrastructure
Enabling IT to focus on the strategic aspects of its role
Cloud Computing offers:
• The ability for IT departments to apply resources as,
and where, they are needed.
• To the organizations to focus in their core business.
Business Agility is the main reason to migrate to Cloud
Computing (over Cost savings)

13. Cloud Computing
Categories within Cloud Computing
• SaaS: Software as a Service
Applications are designed for end-
users, delivered over the web.
• PaaS: Platform as a Service
Set of tools and services designed to
make coding and deploying those
applications quick and efficient.
• IaaS: Infrastructure as a Service
Hardware or Software that powers it
all, includes: Servers, storage,
networks and operating systems.