云计算入门introductiontocloudcomputinggesc1001.pptx

Lecture #2云计算入门Introduction to Cloud ComputingGESC1001Philippe Fournier-VigerProfessor School of Humanities and Social Sciencesmailto:philfv8@philfv8@Fall 2018IntroductionLast week:The content of this course (goal, evaluation criteria, rules)Introduction to cloud computing.Today:Introduction to cloud computing (part 2)Chapter 2: challenges of distributed and parallel systemsIntroduction (cont’d)好好学习From The evaluation for this course will not be too difficult. But please study well.Introduction TO CLOUD COMPUTING (Part 2)pdf 20-38What is cloud computing (云计算)?Cloud (云): a set of distant (遥远的) computers that provide computing or storage services to users.CLOUD USERSWhat is cloud computing?A homogenous (同质) set of computersProvides elastic computing (弹性计算) capabilities to usersEach user pay for what he uses (元).CLOUD USERSWhat is cloud computing?A homogenous (同质) set of computersProvides elastic computing (弹性计算) capabilities to usersEach user pay for what he uses (元).CLOUD USERSResourcesThe cloud provides 3 types of resources:Storage space (存储空间)Network infrastructure (网络基础设施)Applications and services (软件程序）CLOUD USERSWhat is cloud computing?Public cloud (公共云) and Private cloud (私有云 )Data is stored on multiple computers, often close to the places where it is used.Multiple copies of the data can be stored in the cloud.CLOUD USERSBeijingDalianShenzhenDalianShenzhenQingdaoChengduShenzhenShenyang KunmingCloud provider (云提供商 )A company or organization that manages a “cloud”.Computers from a cloud are typically located in one or more data centers (数据中心).What cloud providers do?Manage the cloud computers, software, etc.Manager customers (客户管理 )billing (发送账单), accounting (会计), call center (呼叫中心), technical support (技术支持), backup, management…What cloud providers do?Manage securityauthentication (认证), certification, intrusion prevention (入侵防御), virus protection (病毒防护), cryptography (密码术), physical security, access control (访问控制),…Why using the cloud?Data is accessible any