1 Cloud Computing Prof. Ravi Sandhu Executive Director and Endowed Chair April 12, 2013 © Ravi Sandhu World-Leading.

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Presentation transcript:

1 Cloud Computing Prof. Ravi Sandhu Executive Director and Endowed Chair April 12, © Ravi Sandhu World-Leading Research with Real-World Impact! CS 6393 Lecture 10

© Ravi Sandhu 2 World-Leading Research with Real-World Impact! The Cloud The Network is the Computer - Sun Microsystems, early 1990s The Cloud is the Computer - IEEE Spectrum, 2008 Datacenter as a Computer - Barroso and Hölzle, 2009

© Ravi Sandhu 3 World-Leading Research with Real-World Impact! Cloudwashing

© Ravi Sandhu 4 World-Leading Research with Real-World Impact! The Cloud: Perspectives and Forces Science Engineering Business

© Ravi Sandhu 5 World-Leading Research with Real-World Impact! NIST Cloud Computing Definition versions 5 Essential Characteristics 3 Service Models4 Deployment Models

© Ravi Sandhu 6 World-Leading Research with Real-World Impact! NIST Cloud Computing Definition versions 5 Essential Characteristics 3 Service Models4 Deployment Models Public Private Community Hybrid Software as a Service (SaaS) Platform as a Service (PaaS) Infrastructure as a Service (IaaS)

© Ravi Sandhu 7 World-Leading Research with Real-World Impact! NIST Cloud Computing Definition versions 5 Essential Characteristics 3 Service Models4 Deployment Models Public Private Community Hybrid Software as a Service (SaaS) Platform as a Service (PaaS) Infrastructure as a Service (IaaS) On-demand self service Broad network access Resource pooling (multi-tenant) Rapid elasticity Measured service

© Ravi Sandhu 8 World-Leading Research with Real-World Impact! NIST Cloud Computing Definition versions 5 Essential Characteristics 3 Service Models4 Deployment Models Public Private Community Hybrid Software as a Service (SaaS) Platform as a Service (PaaS) Infrastructure as a Service (IaaS) On-demand self service Broad network access Resource pooling (multi-tenant) Rapid elasticity Measured service Geographic distribution Homogeneity Resilience Massive scale Virtualization Security Other Common Characteristics

 IaaS: Amazon Web Services (AWS)  Compute (EC2)  Storage (S3)  Database (multiple)  Plus more  IaaS: other players  Eucalyptus: opensource with EC2 APIs  OpenStack: industry backed opensource consortium (Rackspace genesis)  Joyent: SmartOS based  SaaS: SalesForce, CRM (Customer Relationship Management)  Any web application can be pitched as SaaS  But don’t forget “On-demand self service” and “Rapid elasticity”  PaaS: least well defined service  Salesforce: force.com plus more  Microsoft Azure  Google AppEngine © Ravi Sandhu 9 World-Leading Research with Real-World Impact! Cloud Pioneers

 “We argue that Cloud Computing not only overlaps with Grid Computing, it is indeed evolved out of Grid Computing and relies on Grid Computing as its backbone and infrastructure support.”  I don’t think so © Ravi Sandhu 10 World-Leading Research with Real-World Impact! Cloud and Grid: Foster et al 2008

© Ravi Sandhu 11 World-Leading Research with Real-World Impact! Cloud and Grid: Foster et al 2008

1. Coordinates resources that are not subject to centralized control  Virtual Organization (VO) 2. Uses standard, open, general-purpose protocols and interfaces  Globus toolkit 3. Delivers non-trivial qualities of service © Ravi Sandhu 12 World-Leading Research with Real-World Impact! Grid 3 Point Checklist: Foster 2002

1. Coordinates resources that are not subject to centralized control  Virtual Organization (VO) 2. Uses standard, open, general-purpose protocols and interfaces  Globus toolkit 3. Delivers non-trivial qualities of service © Ravi Sandhu 13 World-Leading Research with Real-World Impact! Grid versus Cloud On-demand self service Broad network access Resource pooling (multi-tenant) Rapid elasticity Measured service Geographic distribution Homogeneity Resilience Massive scale Virtualization Security No but VOs may be enabled on demand No but standard opensource software and APIs may emerge (OpenStack is the current contender) Yes Grid Cloud

© Ravi Sandhu 14 World-Leading Research with Real-World Impact! Grid versus Cloud Drivers Cloud Commercially developed Little or no academic input Pay-per-use Payment driven Centrally owned hardware Centrally scheduled Single point of trust Simple security Interactive Commodity computing Small and medium businesses Virtualization essential Not so predictable performance Cost associativity Grid DoD funded, no commercial traction Mainly academic driven Pay-per-seat (one-time payment Project oriented, proposal driven Multiply owned hardware Distributed scheduling Multiple trust points Complex PKI based security Batch High performance computing High end organizations Virtualization often not used Predictable performance Not to same degree

© Ravi Sandhu 15 World-Leading Research with Real-World Impact! Cloud and Grid: Foster et al 2008

© Ravi Sandhu 16 World-Leading Research with Real-World Impact! Berkeley View of Cloud: 2010

 Not IaaS or PaaS but classes of utility computing © Ravi Sandhu 17 World-Leading Research with Real-World Impact! Berkeley View of Cloud: 2010 Abstraction Level Application Specificity Amazon EC2 Microsoft Azure Google AppEngine SalesForce force.com

© Ravi Sandhu 18 World-Leading Research with Real-World Impact! Berkeley View of Cloud: 2010

© Ravi Sandhu 19 World-Leading Research with Real-World Impact! Berkeley View of Cloud: 2010