Introduction to Cloud Computing

Transcript

1. Introduction to cloud computing ——xautjzd
2. Cloud Computing
3. What is cloud computing? •Remote service provision at varible levels —Software, Platform, Network, Infrastructure •Distributed computing •Sharing of resource •Dynamic demand management
4. Evolution
5. Advantages  Faster time to market(only focus on business)  Lower costs, pay for what you use  deploy server fast  Flexible growth  On demand services and resources  Resouce pooling  More Secure
6. Architecture Software as a Service(SaaS) Platform as a Service(PaaS) Infrastructure as a Service(IaaS)
7. Software as a Service  Software delivered as a service eg: Dropbox, Google Drive,Gmail  Delivered to end users  Over the Internet 1. via web browser 2. via web app
8. Platform as a Service  Application development platform eg:Google AppEngine, Heroku, Windows Azure  Delivered to developers as a service  Over the Internet
9. Infrastructure as a Service  Computing resources(servers, storage, networking hardware and related software) delivered as a service eg: Amazon web service(AWS) build with EC2, OpenStack, Eucalyptus Delivered to the application developers Over the Internet via resource management tools
10. Difference
11. Classification Public Cloud Private Cloud Hybrid Cloud Community Cloud
12. Public Cloud  Resource available to the public  Offered by a service provider  Lower upfront costs  Easier to manage
13. Private Cloud  Resource available to the owners  Managed by owner or proxy  Lower total costs over the long run  Easier integration with existing assets
14. Hybrid Cloud Resource available to the public Offered by a service provider Lower upfront costs Easyer to manage
15. Virtualization
16. What is Virtualization? Virtualization, in computing, refers the act of creating a virtual (rather than actual) version of something, including but not limited to a virtual hardware platform, operating system (OS), storage device, or network resources. --wikipedia
17. Virtualization Classification  Instruction Set Virtualization  Hardware Virtualization(via VMM)  Operating System Virtualization  Programming Langurage Virtualization(eg: JVM)  Library Virtualization(eg: Wine, Cygwin)
18. Common Virtualization Tools Vmware(VMware ESXi) KVM Xen Hyper-V VirtualBox
19. Instance
20. Questions?