Cloud Computing and GIS Keith T. Weber, GISP GIS Director, ISU.

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Presentation transcript:

Cloud Computing and GIS Keith T. Weber, GISP GIS Director, ISU

Goal of this presentation Describe and demystify “The Cloud” –What is it? –How is it different from web services? –ROI and TCO case studies

What is The Cloud Once upon a time… –Sam the server man discovered his servers were underutilized –To optimize their utilization rate, he made his servers available to others –This was really nothing new, as ISP’s had been around for decades

But…But… Sam’s Servers did more than just host HTML pages, they also: –Provided infrastructure solutions –And hosted services that his customers were not capable of hosting This commercialization of web service hosting became known as…

Cloud Computing

What goes on behind the cloud?

A Definition Cloud computing is… –On-demand –Self-service services –Delivered in a metered fashion via a network (i.e., the Internet) –A multi-tenancy model –Within an elastic environment

TERMSTERMS

VirtualizationVirtualization Similar to logical hard drives, virtualization converts one server into many virtual servers Requires: –Physical host server –Host OS + Virtualization software = Hypervisor –Management suite software

Multi-tenancyMulti-tenancy Virtualized servers used by many

ElasticityElasticity Similar to scalability

Cloud Deployment Models

The Hybrid Model

What services are offered in the Cloud? If its not just an html hosting service, what services are offered?

aaSaaS As A Service

aaSaaS DBaaS A type of SaaS?

Where does GIS fit aaS? Brainstorm…

How does The Cloud differ from Web Services we already learned about? Brainstorm

ROI and TCO Scenarios TCO? ROI… –Case study #1, a small Idaho county wants to make GIS maps of the county available via the web –Case study #2, large research university wants to make GIS maps available via the web

The Partly Cloudy Approach Own the base, rent the spike

ConsiderationsConsiderations Reasons people are not using the cloud Security Service Level Agreement

Questions?Questions?