互聯(lián)網趨勢之云計算介紹cloud-computing-integration-introduction

1、Cloud Computing An IntroductionKarthik T.SCloud Computing Centre of ExcellenceTopicsWhat is Cloud ComputingWhy Cloud ComputingInside a CloudUnderstanding IaaS, PaaS & SaaSPublic vs. Private CloudCloud Providers A Birds Eye ViewAmazon EC2 A Detailed InsightGoogle App Engine An OverviewCloud Succe

2、ss StoriesChallenges, Risks and ConcernsTorry Harris Cloud Service OfferingsConcluding ThoughtsWhat is Cloud ComputingThe Problem Statement Scalability of Enterprise Applications An Issue Success Disaster Failure due to un-planned demand Increasing Capital Investment on IT InfrastructureThe Solution

3、Cloud ComputingiPhone LaunchFestival SeasonSports EventWhat is Cloud Computing“A pool of abstracted, highly scalable, and managed compute infrastructure capable of hosting end-customer applications and billed by consumption”InternetWhere does the term “Cloud” come from ? “Cloud” is widely used as a

4、metaphor for the Internet Internet is the foundation of Cloud computingDefinitionIn Simple Terms, Cloud offers Pay-per-use for computation power Virtually infinite computation resources Automatic on-demand scalabilityWhat is Cloud ComputingAn Analogy - Electricity “Computation Power” is now availabl

5、e like Electricity You pay for what you use. You rely on a trusted third-party providersGrid computing is a collection of servers that are clustered together to attack a single problem. For a period of time, the entire resources of the grid are available to an user to tackle a particularly difficult

6、 compute problem.- Rich Wolski, University of CaliforniaGrid ComputingUtility Computing Metered use of computational resources Origin from utility services (Electricity)VariantsWhy Cloud Computing Eliminates capacity planning and sizing Prevents success disaster Eliminates scalability issues and ris

7、k of failure Savings on Capital Investment Savings on Data Center Space, Power and Cooling Minimizes Operational costsReduces TCOReduces Risks Re-invest saved Capex on new initiatives Focus on business, not on infrastructure Save on operations manpowerBetter Budget Utilization Quicker Time to Market

8、 Create dev and test environments on the fly Rely on speed & stability of the Cloud providerRemain CompetitiveInside a CloudVirtualized CPUs and StoragePhysical Servers across the GlobeSoftware PlatformThe Cloud PlatformSoftware as a Service (SaaS)Platform as aService (PaaS)Infrastructure as a S

9、ervice (IaaS)Virtual ServersVirtual StorageNetwork RoutersJava RuntimeWeb 2.0 RuntimeLAMP / WAMPCorporate EmailBusiness ProcessesCRM, ERP, HRPhysical ServersCloud Providers A Birds Eye ViewInfrastructure as a ServicePlatform as a ServiceSoftware as a ServiceInside a CloudThe Cloud PlatformMetering,

10、Billing and Rating SystemIdentity ManagementSelf Service PortalDynamic Provisioning EngineMonitoring and ManagementNetwork of Physical Servers controlled by the Cloud Operating SystemSecurity SubsystemCloud ApplicationsThe Nuts and Bolts of a Public CloudFacilitates Pay-per-useEnforces SecurityStati

11、stics, Deployment, Start/StopReplicates Application on demandRegistration, Authentication and AuthorizationThe heart of the “Cloud”The face of the CloudVirtualized Runtime Environment (Infrastructure & Platform)Public vs. Private CloudCloud Choices Exclusive environment Limited on-demand capabil

12、itiesPrivate Cloud On-demand resources, scalability Shared environmentPublic Cloud Requires Initial Capital Investment Cloud setup within Orgs data center Control on security and audit Based on basic virtualization Limited on-demand scalingOn-Premise Private Cloud Exclusive, but hosted by a third pa

13、rty Limited on-demand scaling Expensive than public cloud Cheaper than on-premise private cloud Possibility of co-locationExternally Hosted Private CloudHybrid CloudPublic + Private cloudAmazon EC2 A Detailed Insight Create a virtual server instance Concept of AMI Amazon Machine Image Choose your op

14、erating system and/or s/w SSH and SFTP to your virtual server Web Service interface for admin tasksEC2 Elastic Compute CloudS3 Simple Storage Service File System Storage of Arbitrary Data Each file can be 5 GB Secure storage with ACLs Used by SmugMug Photo Service Message Queue Infrastructure Reliab

15、le deliverySQS Simple Queue Service Core Database Functions Fast Indexing, Querying and retrievalSimple DB Infrastructure for data-intensive tasks Web indexing, data mining, log file analysisElastic Map Reduce Infrastructure for content delivery Based on closest geographical locationElastic Cloud Fr

16、ontAmazon EC2 AMI in Action Screenshot showing a SSH root session Out-of-the-box Liferay AMI as PaaSLiferay AMI InstanceGoogle App Engine An OverviewCloud computing Only PaaS & SaaS, No IaaS Initially started with Python RuntimeRecently added support for JavaCan deploy standard J2EE WAR FilesReq

17、uires a special deployment descriptorProvides simple storage as integrated featureStorage supports GQL Google Query LanguageGoogle AppEngine in Actionhttp:/cc- Cloud Survey for CIOs (BETA) Developed by Torry Harris Cloud CoECloud Success Stories SmugM - Half a Peta-byte storage on Amazon S3 New York

18、 Times Used EC2 to archive terabytes of data in 36 hours Animoto - An online presentation video generator used 3500 EC2 instances China Mobile Uses Cloud for mobile content, Big Cloud platform Telefonica Offers SaaS platform for small businesses, partners with NEC B Cloud platform for multi-player g

19、amingChallenges, Risks and ConcernsBiggest Concern Data SecurityFear of Rigidity and Vendor Lock-inControl, Auditing and ComplianceLack of TransparencyMulti-tenancy ArchitectureSLAs, High Availability, etcHidden charges Setup, Exit, etcCloud Adoption Road blocksAddressing the ChallengesClouds are SOX, PCI DSS, HIPAA compliantCloud Security Alliance Best PracticesOWASP WebScarab ProjectNegotiate contract with the providerSLAs and penalty clausesBreaking the Road blocksTorry Harris Cloud Service Offer