What Is The Cloud?
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What Is The Cloud?. Be Smart, Use PwrSmart. Where Did The Cloud Come From?. We get the term “Cloud” from the early days of the internet where we drew a fluffy cloud to define a network of remote computers. 1 st Cloud was TCP/IP, Networking Abstraction 2 nd Cloud was WWW , Data Abstraction

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Be smart use pwrsmart

What Is The Cloud?

Be Smart, Use PwrSmart

Where did the cloud come from

Where Did The Cloud Come From?

  • We get the term “Cloud” from the early days of the internet where we drew a fluffy cloud to define a network of remote computers.

  • 1st Cloud was TCP/IP, Networking Abstraction

  • 2nd Cloud was WWW , Data Abstraction

    Our Cloud has evolved!

    The cloud Today - Abstracts infrastructure complexities of servers. Heterogeneous platforms, Applications, and Data.

The cloud it s constantly evolving

The Cloud – It’s Constantly Evolving.

  • Cloud computing is 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.

  • This cloud model promotes availability and is composed of five essential characteristics, three service models, and four deployment models.

Five characteristics of cloud

FIVE – Characteristics Of Cloud

  • On-demand self-service

  • Broad network access

  • Resource pooling

    - Location independence

  • Rapid elasticity

  • Measured service

Three cloud service models

Three – Cloud Service Models

  • Cloud Software as a Service (SaaS)

    • Use provider’s applications over a network

  • Cloud Platform as a Service (PaaS)

    • Deploy customer-created applications to a cloud

  • Cloud Infrastructure as a Service (IaaS)

    • Rent processing, storage, network capacity, and other fundamental computing resources

Software as a service definition

Software as a Service - Definition

  • Cloud Software as a Service (SaaS). The capability provided to the “end user” to use applications running on a cloud infrastructure and accessible from various client devices through a thin client interface such as a Web browser or application.

  • The consumer does not manage or control the underlying cloud infrastructure, network, servers, operating systems, storage, or even individual application capabilities, with the possible exception of limited user-specific application configuration settings.

Four cloud deployment models

Four – Cloud Deployment Models

  • Private cloud

    • enterprise owned or leased

  • Community cloud

    • shared infrastructure for specific community

  • Public cloud

    • Sold to the public, mega-scale infrastructure

  • Hybrid cloud

    • composition of two or more clouds

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The Cloud Framework

Hybrid Clouds





Public Cloud



Private Cloud



Software as a Service (SaaS)

Platform as a Service (PaaS)

Infrastructure as a Service (IaaS)

On Demand Self-Service

Massive Scale

Resilient Computing

Broad Network Access

Rapid Elasticity


Geographic Distribution




Service Orientation

Resource Pooling

Measured Service

Low Cost Software

Advanced Security

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Which IaaS Does NBT Use?

GoGrid. It’s not a server sat under a developer’s desk in Minneapolis.

Better Management Tools than EC2, Salesforce, and Rackspace.

24/7 Phone Support

100% Uptime SLA

Dedicated Support Teams

f5 Hardware Load Balancing

Multiple Datacenter Provisioning

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Positives to the cloud

Positives to the Cloud

  • Cloud computing leverages:

    • Massive scale

    • Homogeneity

    • Virtualization

    • Resilient computing

    • Low cost software

    • Geographic distribution

    • Service orientation

    • Advanced security technologies

Negatives to the cloud

Negatives to the Cloud

  • Trusting vendor’s security model

  • Indirect administrator accountability

  • Loss of physical control

  • Data dispersal and international privacy laws

    • EU Data Protection Directive and U.S. Safe Harbor program

    • Exposure of data to foreign government and data subpoenas

    • Data retention issues

  • Lease or Purchase Software

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