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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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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
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

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

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