Inside the Cloud The Supporting Architecture of Cloud Computing. Jack Hanison

Transcription

1 Inside the Cloud The Supporting Architecture of Cloud Computing Jack Hanison

2 What is Cloud Computing? 2

3 Is Cloud Computing these Clo things? Virtuali sation ud Com puting =SaaS Paradigm Shift Fad e r u t c e t i h c r A l a c i n h Te c SaaS=Clo u Infrastructure d Compu ting l e d o M l a i Commerc 3

4 A Shift to Utility Commoditisation 4

5 The Characteristics of Cloud Computing Together. Free your energies A Definition Of Cloud Computing, John Foley, Information Week, Sept

6 The Characteristics of Cloud Computing C : t l u Res *aas e c i f v o r t e o S l e a l o s h a W g n i h t y n A = loud Together. Free your energies A Definition Of Cloud Computing, John Foley, Information Week, Sept

7 Cloud Ontology Toward a Unified Ontology of Cloud Computing, L. Youseff, M. Butrico, and D. Da Silva, UCSB, November

8 A Balance of Control and Standardisation E.g. Finance BPO, Payroll Their people, process, application, platform + Infrastructure Software-as-a-Service (SaaS) Platform-as-a-Service (PaaS) E.g. Salesforce.com, Google Apps Their application, platform & Infrastructure Your people, process and operation Infrastructure-as-a-Service (IaaS) Internal Software + Service & traditional outsourcing Degree of control Commoditisation Business Process Outsourcing (BPO) E.g. Force.com, Gigaspaces & Appistry Their platform & Infrastructure Your application, people & process E.g. Amazon Web Services Their infrastructure, operations & support Your application, platform & processes You own everything Infrastructure, platform, app s & process. Contract parts of activities to partners 8

9 The Three Layer Cloud Stack Google Apps MS Online Salesforce.com Applications (SaaS) Office Collaboration CRM & ERP Google App Engine Force.com Windows Azure Platforms (PaaS).NET Java Python Amazon Mozy GoGrid Infrastructure (IaaS) Hardware OS Storage 9

10 Moore - Crossing the Chasm 10

11 The Benefits of Cloud Computing 1 Offsite CapEx Avoidance 2 Virtual Speed to Value 3 On Demand Elastic 4 Subscription Cost Reduction CapEx Avoidance 5 Shared Greener IT 6 Simple Speed to Value 7 Web Based Geographic Freedom 11

12 Deploy Test Configure Install Deploy Test Configure Install Design Design Procure The Cloud Accelerates Speed to Value VALUE BEING DELIVERED MONTHS 12

13 The Complex Science Of Capacity Planning Is Simplified Infrastructure Cost Predictions Cost Money You just lost customers Large Capital Expenditure Opportunity Cost Predicted Demand Traditional Hardware Actual Demand Automated Cloud capacity Time Source: Amazon Web Services 13

14 Challenges for Cloud Computing Migrating Existing Applications Integrating with Existing Enterprise Services and Data Managing Risk and Perceived Risk Addressing the Concept of SLAs New Ways of Looking at Total Cost of Ownership Service Management for Cloud Resources Embracing Organisational Change Adapting Licensing Models How to Get Started 14

15 Challenges for Cloud Computing Migrating Existing Applications The most commonly discussed use case The cause of false starts into the cloud Some architectural differences Some additional benefits Pick your targets Consider this an opportunity cost 15

16 Challenges for Cloud Computing Integrating with Existing Enterprise Services and Data Changing organisational boundaries New security paradigms Identity Management Management Platforms Web Services Mashups BPM as a Service 16

17 Challenges for Cloud Computing Managing Risk and Perceived Risk Legal & regulatory compliance Resilience Why do we backup? Over-optimistic about current practices? Not all requirements are equal Old paradigms do not apply Jericho Style security 17

18 Challenges for Cloud Computing Addressing the Concept of SLAs How to trust others with your business? What is the real reason to have an SLA? Uptime is achieved through architecture Compare the written commitment with the actual performance What is your current real uptime? What does this cost you? 18

19 Challenges for Cloud Computing New Ways of Looking at Total Cost of Ownership Is Cloud computing more expensive? How to address sunk investment cost with anything but free? Ensure you re comparing apples with apples Cloud pricing is Transparent, Fixed, Easy Tiered pricing models now appearing Don t over provision resources Pick the use-cases carefully Try it and see 19

20 Challenges for Cloud Computing Service Management for Cloud Resources Are current tools capable for now? Cloud offers new approaches Different challenges Better capabilities New toolsets required CohesiveFT, RightScale, Splunk, Open standards initiatives 20

21 Challenges for Cloud Computing Embracing Organisational Change The benefits are too great to ignore How will your organisation adapt? Beware the proliferation of shadow IT Skill sets are different 21

22 Challenges for Cloud Computing Adapting Licensing Models Pay-as-you-go hardware requires Pay-as-you-go (or free) software Vendors must adapt or customers will go elsewhere Some of the best cloud technology is not coming from traditional vendors Interoperability remains a key requirement PaaS is the ultimate vendor lock-in? Open Source is ready for the mass market? 22

23 Challenges for Cloud Computing How to Get Started Flexibility, agility, options, cost-savings Study Identify and classify Run Go Production Explore and Embrace Develop Invest to save the Cloud paradigm shift all systems in the IT landscape. Identify candidates. low-risk proof of concepts and pilots with a cluster which will deliver good results the new models and architectures a hybrid architecture model and integrate the Cloud Create a roadmap to modernize legacy landscapes Risk, barriers to cloud usage, dependence on legacy IT, data center 23

24 When Is Cloud Computing A Fit For The Enterprise? Applications & processes have highly variable demand Internal datacenter capacity limits are being reached Existing hardware has reached end of serviceable life Speed of provisioning is constraining business execution Enterprise Datacenter no longer provides competitive advantage 24

25 Some Final Thoughts Organisational boundaries are changing Old rules don t apply Software licensing Rules are changing adapt or get left behind Service Orientation + Cloud It s not one or the other Be wary of software and hardware vendors Cloud has implications for all of their business models Many way to get started Use cases are so diverse everyone can benefit 25

26 Questions?