Introduction to Cloud Computing

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1 Introduction to Cloud Computing Rohit Thakral

2 About Rohit Expertise Sales/Business Management Helpdesk Management Open Source Software & Cloud Expertise Running a trusted blog-site with over 900 subscribers A very active networker on LinkedIn with almost 600 connections

3 Introductions

4 The Buzz The Internet Industry Is on a Cloud Whatever That May Mean Wall Street Journal, March 26, 2009, A1 Cloud Computing 'Something We Absolutely Have to Do John Garing, CIO, DISA

5 Cloud Computing Wikipedia Definition: Cloud computing is the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility (like the electricity grid) over a network (typically the Internet).

6 What is Cloud? Cloud Computing is a general term used to describe a new class of network based computing that takes place over the Internet In addition, the platform provides on demand services, that are always on, anywhere, anytime and any place. Pay for use and as needed, elastic scale up and down in capacity and functionalities

7 Why Cloud Computing We are all likely to use, or have already used some cloud based services Back up/storage (icloud, Mozy, Carbonite, Dropbox, Google Drive, Skydrive) /Calendaring (Gmail, Hotmail) Collaboration/Social (Google Apps, Office 365) Hosting Services (RackSpace, Amazon, Microsoft) CRM/ERP

8 Cloud Computing Overview Services Applications Computer Network Storage (Database) Servers Adopted from: Effectively and Securely Using the Cloud Computing Paradigm by peter Mell, Tim Grance 8

9 Cloud Benefits Increased Speed 24 hour provisioning Online self service Credit card acquisition Increased Scalability Increase capacity ~ 24 hours Turn On / Turn Off monthly Capacity on demand Reduced Risk No capital needed Secure Infrastructure Develop under DoD IA standards Reduced Cost Pay only for what you need Month-to-month service No annual maintenance fees

10 Some Notes Cloud computing customers do not own the physical infrastructure Cloud computing users avoid capital expenditure (CapEx) on hardware, software, and services when they pay a provider only for what they use Low shared infrastructure and costs, Low management overhead, and Immediate access to a broad range of applications

11 Lets know cloud

12 Cloud Models Delivery Models SaaS PaaS IaaS Deployment Models Private cloud Community cloud Public cloud Hybrid cloud

13 Layers of Cloud Computing Client Application Platform Infrastructure Server

14 Type of Cloud Computing SaaS Software as a Service PaaS Platform as a Service IaaS Infrastructure as a Service Service Model

15 SaaS - Software as a Service Features Increasingly popular with SMEs No hardware or software to manage Service delivered through a browser Advantages Pay per use Instant Scalability Security Reliability APIs

16 PaaS - Platform as a Service Features Platforms are built upon Infrastructure, which is expensive Estimating demand is not a science! Platform management is not fun! Advantages Pay per use Instant Scalability Security Reliability APIs

17 IaaS - Infrastructure as a Service Features Access to infrastructure stack: Full OS access Firewalls Routers Load balancing Advantages Pay per use Instant Scalability Security Reliability APIs

18 Different Cloud Computing Application Application Service (SaaS) Application Platform Server Platform Storage Platform MS Live/ExchangeLabs, IBM, Google Apps; Salesforce.com Quicken Online, Zoho, Cisco Google App Engine, Mosso, Force.com, Engine Yard, Facebook, Heroku, AWS 3Tera, EC2, SliceHost, GoGrid, RightScale, Linode Amazon S3, Dell, Apple

19 Cloud Models Delivery Models SaaS PaaS IaaS Deployment Models Private cloud Community cloud Public cloud Hybrid cloud

20 Cloud Deployment Models Private cloud The cloud infrastructure is operated solely for an organization. It may be managed by the organization or a third party and may exist on premise or off premise. enterprise owned or leased Community cloud The cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns (e.g., mission, security requirements, policy, and compliance considerations). It may be managed by the organizations or a third party and may exist on premise or off premise. shared infrastructure for specific community

21 Cloud Deployment Models Contd. Public cloud The cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services. Sold to the public, mega-scale infrastructure Hybrid cloud The cloud infrastructure is a composition of two or more clouds (private, community, or public) that remain unique entities but are bound together by standardized or proprietary technology that enables data and application portability (e.g., cloud bursting). composition of two or more clouds

22 Cloud & Beyond

23 Virtualisation Virtual workspaces: An abstraction of an execution environment that can be made dynamically available to authorized clients by using welldefined protocols, Resource quota (e.g. CPU, memory share), Software configuration (e.g. O/S, provided services). Implement on Virtual Machines (VMs): Abstraction of a physical host machine, Hypervisor intercepts and emulates instructions from VMs, and allows management of VMs, VMWare, Xen, etc. OS OS Provide infrastructure API: Hypervisor Plug-ins to hardware/support structures App App App Hardware OS Virtualized Stack

24 Cloud Sourcing Why is it becoming a Big Deal: Using high-scale/low-cost providers, Any time/place access via web browser, Rapid scalability; incremental cost and load sharing, Can forget need to focus on local IT. Concerns: Performance, reliability, and SLAs, Control of data, and service parameters, Application features and choices, Interaction between Cloud providers, No standard API mix of SOAP and REST! Privacy, security, compliance, trust

25 Benefits of Cloud Computing Lower cost of ownership Reduce infrastructure management responsibility Allows for unexpected resource loads Faster application rollout Multiuser Virtualisation lowers costs by increasing utilisation Economies of scale afforded by technology Automated update policy

26 Benefits of Cloud Computing Cloud computing enables companies and applications, which are system infrastructure dependent, to be infrastructure-less. By using the Cloud infrastructure on pay as used and on demand, all of us can save in capital and operational investment! Clients can: Put their data on the platform instead of on their own desktop PCs and/or on their own servers. They can put their applications on the cloud and use the servers within the cloud to do processing and data manipulations etc.

27 Cons of Cloud Computing Security Downtime Access Dependency

28 Cloud Storage Several large Web companies are now exploiting the fact that they have data storage capacity that can be hired out to others. allows data stored remotely to be temporarily cached on desktop computers, mobile phones or other Internet-linked devices. Simple Storage Solution (S3) and Dropbox are well known examples

29 Advantages in moving to Cloud Support faster application development/deployment Reduce hardware provisioning from months to hours Provide standard platforms to encourage standardization Developing under security guidelines reduces implementation delays to retrofit security Reduce development and operating cost Self-service model reduces costs Standardization reduces support costs Centralizing resources in the cloud Improve overall security posture No servers under desks Secure facilities Uniform application of security guidelines

30 Disadvantages of Cloud Computing Requires a constant Internet connection Does not work well with low-speed connections Features might be limited: This situation is bound to change, but today many webbased applications simply are not as full-featured as their desktop-based applications. Stored data might not be secure: With cloud computing, all your data is stored on the cloud. The questions is how secure is the cloud?

31 Opportunities & Challenges

32 Opportunities The use of the cloud provides a number of opportunities: It enables services to be used without any understanding of their infrastructure Cloud computing works using economies of scale: It potentially lowers the outlay expense for start up companies, as they would no longer need to buy their own software or servers Cost would be by on-demand pricing Vendors and Service providers claim costs by establishing an ongoing revenue stream Data and services are stored remotely but accessible from anywhere

33 Cloud Services Available from Target Integration Cloud Migration Consultancy Infrastructure as a Service Web/ Servers Shared Drive Servers Virtual Private Network (VPN) Servers Platform as a Service Cloud Backup Setup & Support Software as a Service Google Apps Migration & Support Microsoft Office 365 Migration & Support Cloud based Customer Relationship Manager (CRM) and Enterprise Resource Planning (ERP)

34 Your Take away tip In one pic

35 Contact Us Follow us on Twitter Connect to us on LinkedIn Like us on Facebook Google Target Integration Register to get IT tips from our blog Or simply give us a call or

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