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1 Cloud Computing 101 Dissipating the Fog 2012/Dec/xx

2 Why the interest in Clouds? A method to avoid/defer CAPEX/OPEX and possibly accelerating implementation 2

3 It all started here - Timeshare Computers and applications were very expensive Customers either: Loaded their programs, input cards and produced reports, &c. on the equipment provided by the Service Provider (SP) Purchased a partition of a SP application and accessed it via directly- attached devices (eg: EDS Payroll) What was Provided Defined Interfaces Sequence rules Maintenance Visibility Expectations Service Levels Flexibility Security Resilience Compliance/ Auditability

4 Snapshot of Clouds Today (this should look familiar) Computer Complexes and applications can (still) be very expensive - Customers either: Load their programs/datasets onto the SP s environment and access them via the web Purchase rights to use a virtualized SP application via the web What s Provided Defined Interfaces Sequence rules Maintenance Visibility Expectations Service Levels Flexibility Security Resilience Compliance/ Auditability

5 There are different types of clouds NIST Viewpoint 5

6 Types of services models: Infrastructure as a Service (IaaS) Virtualized hardware data storage, networking and bandwidth i.e. Server, Storage, Routers, Switches etc. Data as a Service (DaaS) is a subset of IaaS restricted to only providing data storage/representation Computing as a Service (CaaS) Examples: Amazon, Rackspace and IBM BlueCloud 6

7 Types of service models: Platform as a Service (PaaS) Application Building Block (ABB): Virtualized hardware + Operating System + Application support stack (eg:.net,, VS.NET, JAVA-VM, Apache, TomCat) Microsoft Azure and Google s AppEngine Win Tomcat.NET UNIX LINUX JAVA JAVA Win.NET Apache LINUX 7

8 Types of service models: Software as a Service (SaaS) Virtualized operating environment (ABB) + application Cybersecurity as a Service (yes its also called SaaS) Examples: VPMi, Salesforce, BillQuick Win Tomcat.NET UNIX LINUX JAVA Apache Win JAVA.NET LINUX 8

9 Deployment models: Private Virtualized and contained within one organization Data Application App Support Stack Operating System Virtual Machine UNIX WLS Server/Storage Network IT Control 9

10 Deployment models: Community (PaaS example) Supporting solution block is shared resource Time Share / Service Provider Data Application App Support Stack apache VM Operating System OS Virtual Machine OS Server/Storage OS DATA OS Data Network VM IT Control Cloud SP Control Shared Control 10

11 Deployment models: Public (SaaS example) Data is secured and control shared Data Application apache VM App Support Stack OS Operating System OS Virtual Machine OS DATA OS Data VM Server/Storage Network IT Control Cloud SP Control Shared Control 11

12 Deployment models: Hybrid (SaaS example) Mix of in-house controlled and public shared Data Public Public Application WIN zos apache Public UNIX App Support Stack Operating System Private WIN UNIX Virtual Machine Server Storage Network IT Control Cloud SP Control Shared Control 12

13 Cloud ABBs (Open Group) Presentation Layer Consumer Interfaces APIs Business Processes Business-Process-as-a-Service (BPaaS) Integration Quality of Service Information Governance Services Software-as-a-Service (SaaS) Infrastructure-as-a-Service (IaaS) Platform-as-a-Service (PaaS) Service Components Operational Systems SOI Framework Compute Network Storage Facilities 13 Infrastructure

14 NIST View of XaaS (everything as a Service) 14

15 Impact of Clouds on an Organization EA Perspective IaaS & PaaS Business Automation Technologies Input from strategy & context Business Architecture Information Architecture Automation Architecture Technical Architecture Conceptual What? Vision/ Contextual Why? What is the business What are the info processing requirements What type of applications are required What physical IT services are required Logical How? How is the business structured How is information structured How are these systems structured How are the boxes structured Physical With what? Which parts of the business will change What manual & automated processes need to be linked What packages & bespoke software What Hardware, software & network component

16 Impact of Clouds on an Organization EA Perspective SaaS* Business Automation Technologies Input from strategy & context Business Architecture Information Architecture Automation Architecture Technical Architecture Conceptual What? Vision/ Contextual Why? What is the business What are the info processing requirements What type of applications are required What physical IT services are required Logical How? How is the business structured How is information structured How are these systems structured How are the boxes structured Physical With what? Which parts of the business will change What manual & automated processes need to be linked What packages & bespoke software What Hardware, software & network component *outsourcing a function

17 Cloud essentials: Trust and Consistency Service Provider key items Accessibility Interface standards Usage roles (sequence) Compatibility Service levels Security Control Service-Level Agreement Broad access & Latency Scalability (rapid elasticity) Backup, disaster continuance/recovery Compliance Access Security Secured access and storage Privacy Regulatory and client compliance requirements Control Visibility and shared control over contracted virtual environment 17 Accurate billing

18 Why this isn t pervasive TRUST Which of the following do you believe about cloud computing (including SaaS)? a) The benefits of cloud computing outweigh the risks - 20% b) The risks of cloud computing outweigh the benefits - 41% c) The risk and benefits of cloud computing are appropriately balanced - 39% 2011 ISACA Risk/Reward Barometer Which of the following best describes your enterprise s 2011 cloud computing plan? a) We limit cloud computing to low-risk, non-mission mission-critical IT services - 25% b) We use cloud computing for mission-critical IT services - 14% c) We do not currently use cloud computing for any IT services - 21% 2011 ISACA Risk/Reward Barometer 18

19 Why this isn t pervasive Technical Issues Communications Latency Ability of Cloud resources to respond in near real-time to dramatic workload increases Inconsistent Cloud response times due to external demand (other Cloud users) Business Issues Cloud provider stability if we bet portions of our business process on their procedures will they be around for the long haul Visibility into security procedures (eg: privacy, archiving, access) Changes to existing business procedures (organizational structure) and security procedures Emotional Issues Knowing its not completely in your control Not trusting your or the Cloud provider s security and disaster-continuance measures 19

20 Questions 20

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