Cloud Computing Service Architectures V. Arun College of Computer Science University of Massachusetts Amherst 1.

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Cloud Computing Service Architectures V. Arun College of Computer Science University of Massachusetts Amherst 1

U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science Common cloud computing models  Service models: IaaS: Infrastructure as a Service -e.g., Amazon EC2, Microsoft Azure, Google Compute Engine PaaS: Platform as a Service -e.g., Google AppEngine, Heroku, Apache Stratos SaaS: Software as a Service -Microsoft Office365, Amazon DynamoDB, gmail 2

U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science Cloud infrastructure management  Management models: Public clouds -Utility model -Shared hardware -No control of hardware, -Self-managed (e.g., AWS, Azure, GCE) Private clouds: -More isolated (secure?), -Federal compliance friendly -Customizable hardware and hardware sharing -Example: OpenStack, an open source platform for virtualized clouds 3

U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science Virtualization: key to cloud boom  Physical machine virtualization Full virtualization: masking as physical machine to guest Para-virtualization: Semi-transparent to guest  Virtualization goes well beyond CPU or physical machines Virtualized I/O (Elastic Block Storage) Virtual private networks Containers (e.g., AWS or Google Container Service) Virtual switches/routers with software-defined networking (SDN) Network function virtualization (NFV) forwarding-plane services 4

U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science Cloud pricing models  Market-driven: variety of pricing models for each of IaaS, PaaS, SaaS service models  Let’s ask some questions: How much does an hour of computing on a commodity core cost today? How much does transferring 1GB of data over a wide-area network cost today? How much does 1GB of storage for a month cost today? 5 Let’s find out what the market looks like today!

U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science EC2 compute pricing 6 Do these numbers match our intuition based on market prices for computers and peripherals?

U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science Google Cloud compute pricing 7

U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science U NIVERSITY OF M ASSACHUSETTS A MHERST School of Computer Science Spot pricing: market inside a cloud 8