Cloud Computing Architecture
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This document discusses cloud computing architecture and concepts. It covers the different layers of a cloud architecture including the user/client layer, network layer, cloud management layer, hardware resource layer, and components including applications, platforms, infrastructure, virtualization, and physical hardware. It also discusses public cloud access and networking, the drawbacks of traditional web applications compared to cloud applications, and key features of cloud computing such as elasticity.
![Cloud Computing
Architecture
Yong Heui Cho @ Mokwon University
Some of slides are referred to and all credits should go to:
[1] K. Chandrasekaran, Essentials of Cloud Conputing, CRC Press, 2015.](https://image.slidesharecdn.com/6-180228070138/85/Cloud-Computing-Architecture-1-320.jpg)
Cloud Computing Architecture
- 1. Cloud Computing Architecture Yong Heui Cho @ Mokwon University Some of slides are referred to and all credits should go to: [1] K. Chandrasekaran, Essentials of Cloud Conputing, CRC Press, 2015.
- 2. 2 Cloud Service 4. Node.js Basics 5. Node.js Applications 6. Cloud Computing Architecture 7. Cloud Deployment Model
- 4. 4 User/Client Layer • Clients initiate the connection to a cloud with client devices. • A cloud app can be accessed as a web app.
- 5. 5 Network Layer • Network layer allows the users to connect to the cloud. • Internet in the case of a public cloud • LAN in the case of a private cloud • The cloud depends on the network. • Not related to SLA
- 6. 6 Cloud Management Layer • Cloud management layer has SW used in managing the cloud – Usually cloud OS: resource management, optimization, cloud governance – Interface between data centers and users • Related to SLA – Any SLA violation results in penalty.
- 7. 7 HW Resource Layer • Actual HW resources • A data center is used as a back end. – High speed network connection and highly efficient algorithm • Related to SLA
- 9. 9 5 Components • Application: apps are executed. • Platform: responsible for the execution of apps • Infrastructure: computing capability to users • Virtualization: making logical components of resources • Physical HW: server and storage units
- 10. 10 Public Cloud Access Networking • Connectivity: Internet – Optional: virtual private network (VPN) • Security is very important. – Encrypted tunnels – Overhead in connectivity • Suitable routing method to minimize the transit hops
- 12. 12 Drawbacks of Web App • Not elastic, cannot serve highly varying loads – Peak load transactions cannot be handled • Not multitenant • Not provide a quantitative measurement of services • One particular platform • Not pay-as-you-go basis
- 14. 14 Elasticity • Unique property of cloud computing • Ability to control the resources to meet the current demand – Efficiently handles # of users and usages