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Amazon Web Services: Amazon Elastic Compute Cloud (Amazon EC2). 陳雪菁 [95C 資管組 P95747009] 2008.03.27. Agenda. Introduction Amazon Web Services overview Amazon EC2 is …. Amazon EC2 Benefits Typical Examples Q & A. Amazon?. Consumers (Buy). Associates, Sellers & Merchants (Sell).

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Amazon Web Services: Amazon Elastic Compute Cloud (Amazon EC2)


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    1. Amazon Web Services:Amazon Elastic Compute Cloud (Amazon EC2) 陳雪菁 [95C資管組 P95747009] 2008.03.27

    2. Agenda • Introduction • Amazon Web Services overview • Amazon EC2 is …. • Amazon EC2 Benefits • Typical Examples • Q & A

    3. Amazon? • Consumers (Buy) • Associates, Sellers & Merchants (Sell) • Developers (Innovate)

    4. Issues Facing Developers • 70% of Web Development Effort is “Muck”: • Data Centers • Bandwidth / Power / Cooling • Operations • Staffing • Scaling is Difficult and Expensive: • Large Up-Front Investment • Invest Ahead of Demand • Load is Unpredictable

    5. Solution: Web-Scale Computing • Scale capacity on demand • Turn fixed costs into variable costs • Always available • Rock-solid reliability • Simple APIs and conceptual models • Cost-effective • Reduced time to market • Focus on product & core competencies

    6. Amazon Web Services Are... A set of APIs and business models which give developers access to Amazon technology and content • Data As a Service • Amazon E-Commerce Service • Amazon Historical Pricing • Infrastructure As a Service • Amazon Simple Queue Service • Amazon Simple Storage Service • Amazon Elastic Compute Cloud • Amazon SimpleDB • Search As a Service • Alexa Web Information Service • Alexa Top Sites • Alexa Site Thumbnail • Alexa Web Search Platform • People As a Service • Amazon Mechanical Turk 6

    7. The Commercial Side • Standard licensing terms • Commercially usable • Aggressive pricing • Monthly credit card billing • Self-serve model: • Sign up as developer • Choose services • Agree to service licenses • Enter payment info • Start coding

    8. Amazon EC2 Is… • Amazon Elastic Compute Cloud (EC2) • Hardware As A Service • A Web service that provides resizable compute capacity in the cloud. • Designed to make Web-scale computing easier for developers. • really Xen virtual machine instances running on AMD x86; each instance has 2GB RAM and 150GB disk • A simple Web service interface that provides complete control of your computing resources • create/destroy from the command line

    9. Amazon EC2 Concepts • Amazon Machine Image (AMI): • Bootable root disk • Pre-defined or user-built • Catalog of user-built AMIs • OS: Fedora, Centos, Gentoo, Debian, Ubuntu, Windows Server • App Stack: LAMP, mpiBLAST, Hadoop • Instance: • Running copy of an AMI • Launch in less than 2 minutes • Start/stop programmatically • Network Security Model: • Explicit access control • Security groups • Inter-service bandwidth is free

    10. Simply to Use Amazon EC2 Create an Amazon Machine Image (AMI). Upload the AMI into Amazon S3. Configure security and network access. Choose the type(s) of instance you want to run. Start, terminate, and monitor as many instances of your AMI as needed, using the web service APIs. Pay for the instance-hours and bandwidth that you actually consume.

    11. Images: RegisterImage DescribeImages DeregisterImage Instances: RunInstances DescribeInstances TerminateInstances GetConsoleOutput RebootInstances Keypairs: CreateKeyPair DescribeKeyPairs DeleteKeyPair Image Attributes: ModifyImageAttribute DescribeImageAttribute ResetImageAttribute Security Groups: CreateSecurityGroup DescribeSecurityGroups DeleteSecurityGroup AuthorizeSecurityGroupIngress RevokeSecurityGroupIngress EC2 SOAP/Query API

    12. Service Highlights • Elastic • Completely Controlled • Flexible • Designed for use with Amazon S3 • Reliable • Secure • Inexpensive

    13. Pricing • Pay only for what you use and there is no minimun fee. • Pricing is per instance-hour consumed for each instance type. • Partial instance-hours consumed are billed as full hours. • $0.10 - Small Instance (Default) • 1.7 GB of memory, 1 EC2 Compute Unit (1 virtual core with 1 EC2 Compute Unit), 160 GB of instance storage, 32-bit platform • $0.40 - Large Instance • 7.5 GB of memory, 4 EC2 Compute Units (2 virtual cores with 2 EC2 Compute Units each), 850 GB of instance storage, 64-bit platform • $0.80 - Extra Large Instance • 15 GB of memory, 8 EC2 Compute Units (4 virtual cores with 2 EC2 Compute Units each), 1690 GB of instance storage, 64-bit platform

    14. Amazon EC2 Benefits You Because It • Reduces the time required to obtain and boot new server instances to minutes • Quickly scales capacity, both up and down, as your computing requirements change • Changes the economics of computing: • Pay only for capacity that you actually use • a + bc becomes just bc

    15. EC2 Gotchas • Local storage is non-persistent • When you shut down, your data is lost • Need to write it elsewhere; but S3 is free! • You can "freeze" a running instance's "disks" to S3, as an "AMI" (Amazon Machine Instance), then duplicate that to as many servers as you like • DHCP IP address assignment • So IP changes when instance reboots • Hard to use as a public server • HTTP is still usable with a reverse proxy, such as Pound or Apache's mod_proxy

    16. Typical Examples • Photo Share Web Site • Online Backup • Email Services • Search experience JamLoop • Podcast GIGAVOX

    17. Web-Scale Architecture GigaVox is the leading podcast technology company. GigaVoxImplemented Amazon S3, Amazon EC2 and Amazon SQS in November 2006

    18. Summary • Cheap • Scalable • Beefy • Fault tolerant • Experiment!

    19. Questions? • http://www.amazonaws.com/ • http://del.icio.us/jm/aws • Technical Report TR-08-07 • An Evaluation of Amazon’s Grid Computing Services: EC2, S3 and SQS • 勞虎跑得快 • 亞馬遜 Bezos 的豪賭 — Web 2.0 基礎設施租賃業