unraveling the mystery of cloud computing

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Byron K Patrick, CPA.CITP, CGMA, MCSE

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Today’s Objective

• To Explain how to get the “Cable” into the “Cloud”

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• Many definitions!

• Model of enabling convenient, on-demand network access to shared computing resources (e.g., networks, servers, storage, applications, and services) that can be released with minimal service provider interaction.

• It is simply a classification, an add-on to:

• LAN, WAN, Grid, Etc…

• The “Cloud” is a metaphor for the Internet

• Data and applications now live in the internet

What is Cloud Computing

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• User Perspective

• Accessible from anywhere you have internet

• Minimal to no software to install

• Typically OS agnostic

• Work On Demand

• No Backups to worry about

• Scalable - Just add users and modules

Characteristics of Cloud Computing

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• Technical Perspective

• High Availability

• Typically web based

• Pooled Resources

• 5 nines

• Data Redundancy

• Scalable - Just add server resources

Characteristics of Cloud Computing

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• SaaS:• Software as a Service

• IaaS:• Infrastructure as a Service

• PaaS:• Platform as a Service

• Colocation:• Private Cloud

• Managed Hosting• Public Cloud

• Hosted Applications:• Outsourced Cloud

Cloud Options?

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• Delivers software through the internet, typically through a web browser, avoiding the challenge of installing and maintaining software at the customers site.

Software as a Service (SaaS)

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ADVANTAGES DISADVANTAGES

Another login to remember

Can’t use offline (some exceptions)

Data isn’t portable

Customer owns nothing

Pay for only what you use

Easily Scalable

Automatic updates

Web/Browser based

No software to purchase

Subscription based

Customer owns nothing

Characteristics of SaaS

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• Provides a technical computer infrastructure typically in the form of virtualized servers. Servers are rented by the customer and managed by the customer

Infrastructure as a Service (IaaS)

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ADVANTAGES DISADVANTAGES

Customer manages server operations

Customer requires technical expertise

Customer owns software

Complete Computing Environment

Underlying Infrastructure fully managed

Virtualized Infrastructure

Scalable

Pay per use

Customer owns data

Customer doesn’t own servers

Characteristics of IaaS

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Platform as a Service (PaaS)

• Provides a computing platform to facilitate deployment of typically SaaSapplication by limiting the challenges and cost of managing the underlying hardware and software foundation.

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• A service used for software programmers to develop web applications

• Software Platform is provided and managed

• Programmers plugin their code and focus on their application rather than the challenges associated with managing the software components:

• Servers

• Databases

• Bandwidth

• Etc

Characteristics of PaaS

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• A service where server racks, equipped with power, cooling, and bandwidth are rented on a monthly basis. Colocation eliminates the need to build and maintain a server room and all of its complexities.

Colocation

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ADVANTAGES DISADVANTAGES

Requires the technology experts in-house or consultants

Requires some sort of remote access technology

Customer owns software

Customer owns hardware

Highly Secure – Physically

High Availability Infrastructure:

• Internet, Power, Cooling

On-site monitoring

Computer hardware sensitive fire prevention

Colo Features

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• Rent rack space in a datacenter

• DataCenter Classifications

• Tiers

• Tier 1 – Server Closet

• Tier 2 – Office Data Center

• Tier 3 – Enterprise Datacenter

• Tier 4 – Armed Guards

Colocation

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A Datacenter Tour

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• The benefits of IaaS combined with the technical expertise of a managed services provider, effectively IaaS with an IT Department.

Managed Hosting

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ADVANTAGES DISADVANTAGES

Customer owns some softwareComplete Computing Environment

Underlying Infrastructure Fully Managed

Server Operations Fully Managed

Fully Virtualized

Scalable

Subscription Based

Can be OS agnostic

99% of non-SaaS applications can be supported

Licensing benefits with the right providers

Customer owns data

Customer doesn't own servers

Managed Hosting

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• Applications that are not natively designed as SaaS applications however in their nature can easily be supported by and outside service provider.

Hosted Applications

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• Non-SaaS Applications

• Popular Examples:• Phone Systems

• Microsoft Exchange

• SharePoint

• QuickBooks

• Web Security

• Creative Solutions Virtual Office

Hosted Applications

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Who is using it?

• Home Users

• Businesses

• Non Profits

• Government

• Everyone

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• Byron K Patrick, CPA.CITP, MCSE 2003

• 443.850.7918

• bpatrick@goapps.us

• www.SimplifiedInnovations.com

• byron_cpa

• http://www.linkedin.com/in/byronpatrick

Questions or Comments?