Introduzione al cloud computing
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The document discusses different cloud computing models including infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). It notes that major companies like Amazon and Microsoft provide cloud services to millions of customers worldwide. The document also briefly covers private cloud, public cloud, community cloud, and hybrid cloud models and how they differ from on-premise deployment. It argues that cloud services can provide more efficiency and flexibility than traditional on-premise models through variable costs and multi-tenancy.
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Introduzione al cloud computing
- 4. Alcuni termini Hosting on premise deployment
- 5. Alcune cattive abitudini ritorno economico costi fissi per sempre una sola macchina
- 6. Cosa succede se scelgo tutto prima?
- 7. Una discussione straordinaria ordinaria
- 8. Nuove abitudini business plan variabili
- 11. Mainframe
- 12. Time sharing
- 13. “Computatio n may someday be organized as a public utility” (John Mccarty, 1960s)
- 16. Agility
- 17. Costi
- 18. Device Independ ence
- 20. Multitenancy
- 21. Reliability
- 23. Performance
- 24. Security
- 25. Applicatio n program ming interface (API)
- 26. Maintenance
- 34. On Premise
- 35. I servizi del Cloud Computing
- 36. Infrastruct ure as a Service
- 37. Amazon milioni worldwide underprovisioned overprovisioned multi- tenant IaaS
- 38. Platform as a Service
- 39. Microsoft PaaS
- 40. Software as a Service
- 41. Google e Microsoft SaaS
- 42. No installation
- 43. I servizi del Cloud Computing Efficiency Control+Cost
- 44. XaaS Storage as a Service (STaaS) Security as a Service (SECaaS) Data as a Service (DaaS) Test Environment as a Service (TSaaS) Desktop as a Service (DaaS) API as a Service (APIaaS)
- 46. Private Cloud
- 47. Public Cloud
- 48. Communi ty Cloud
- 49. Hybrid Cloud
Hinweis der Redaktion
- Slide Objectives:Explain the differences and relationship between IaaS, PaaS, and SaaS in more detail.Speaking Points:Here’s another way to look at the cloud services taxonomy and how this taxonomy maps to the components in an IT infrastructure. Packaged SoftwareWith packaged software a customer would be responsible for managing the entire stack – ranging from the network connectivity to the applications. IaaSWith Infrastructure as a Service, the lower levels of the stack are managed by a vendor. Some of these components can be provided by traditional hosters – in fact most of them have moved to having a virtualized offering. Very few actually provide an OSThe customer is still responsible for managing the OS through the Applications. For the developer, an obvious benefit with IaaS is that it frees the developer from many concerns when provisioning physical or virtual machines. This was one of the earliest and primary use cases for Amazon Web Services Elastic Cloud Compute (EC2). Developers were able to readily provision virtual machines (AMIs) on EC2, develop and test solutions and, often, run the results ‘in production’. The only requirement was a credit card to pay for the services.PaaSWith Platform as a Service, everything from the network connectivity through the runtime is provided and managed by the platform vendor. The Windows Azure best fits in this category today. In fact because we don’t provide access to the underlying virtualization or operating system today, we’re often referred to as not providing IaaS.PaaS offerings further reduce the developer burden by additionally supporting the platform runtime and related application services. With PaaS, the developer can, almost immediately, begin creating the business logic for an application. Potentially, the increases in productivity are considerable and, because the hardware and operational aspects of the cloud platform are also managed by the cloud platform provider, applications can quickly be taken from an idea to reality very quickly.SaaSFinally, with SaaS, a vendor provides the application and abstracts you from all of the underlying components.
- Slide Objectives:Explain the differences and relationship between IaaS, PaaS, and SaaS in more detail.Speaking Points:Here’s another way to look at the cloud services taxonomy and how this taxonomy maps to the components in an IT infrastructure. Packaged SoftwareWith packaged software a customer would be responsible for managing the entire stack – ranging from the network connectivity to the applications. IaaSWith Infrastructure as a Service, the lower levels of the stack are managed by a vendor. Some of these components can be provided by traditional hosters – in fact most of them have moved to having a virtualized offering. Very few actually provide an OSThe customer is still responsible for managing the OS through the Applications. For the developer, an obvious benefit with IaaS is that it frees the developer from many concerns when provisioning physical or virtual machines. This was one of the earliest and primary use cases for Amazon Web Services Elastic Cloud Compute (EC2). Developers were able to readily provision virtual machines (AMIs) on EC2, develop and test solutions and, often, run the results ‘in production’. The only requirement was a credit card to pay for the services.PaaSWith Platform as a Service, everything from the network connectivity through the runtime is provided and managed by the platform vendor. The Windows Azure best fits in this category today. In fact because we don’t provide access to the underlying virtualization or operating system today, we’re often referred to as not providing IaaS.PaaS offerings further reduce the developer burden by additionally supporting the platform runtime and related application services. With PaaS, the developer can, almost immediately, begin creating the business logic for an application. Potentially, the increases in productivity are considerable and, because the hardware and operational aspects of the cloud platform are also managed by the cloud platform provider, applications can quickly be taken from an idea to reality very quickly.SaaSFinally, with SaaS, a vendor provides the application and abstracts you from all of the underlying components.