Unit 1.2 move to cloud computing
2 likes926 views
Cloud computing provides various advantages such as reduced costs, improved scalability, mobility and collaboration. However, migrating to the cloud also presents some challenges including security concerns, vendor lock-in, integration issues, and loss of control over IT resources. A successful cloud migration requires careful planning and execution of key stages - planning the project, executing the migration, and monitoring outcomes. It is also important to start small, trust cloud vendors to protect data, maintain user identity management, and plan for potential latency and outages.
Unit 1.2 move to cloud computing
- 1. Advantages of Cloud Computing lInterconnectivity of computer servers allow an organization to carry out a variety of tasks in different locations. lIt facilitate proper management of Information Technology resources within the organization lIt allows outsourcing of a key function of the company's work portfolio. lLimited in-house Information Technology infrastructure will limit the team size and budget.
- 2. Advantages of Cloud Computing
- 3. Advantages of Cloud Computing lCost Reduction lIt reduces paperwork lMiniminzes the financial endeavour in hardware. lReduces employee. lScalability lAs the business grows, user can put up by adding more server spaces. lSharing IT resources with other companies reduces the cost of licensing software and retail servers
- 4. Advantages of Cloud Computing lEasier Collection lCloud computing services allow to access any time from any computer lIt is easy to work together with employees in remote locations lAffortable lIt is possible to reduce operational costs and investment expenditures on hardware, software license and implementation services
- 5. Advantages of Cloud Computing lScalable and Flexible lCloud computing can sanction to maximize supplies for better competence and reduce unused capacity. lIt can also scale up or downward to meet the varying demands of the business lEfficiency lCloud computing renders the gain of divided hardware, automated and recognizable technologies lThe employee have the right to use the database from everywhere by using any PC, mobile device or browser. lIt also reduces overall energy usage and physical presence
- 6. Key Elements of Cloud Computing
- 7. The Fixed Cost Advantage lSoftware provided online is upgraded and maintained by the provider, so that small business owner do not have to purchase the newest version of software program or download fixes and patches. lSmall firms do not have the budget to spend on adequate on-site security and backup systems are subjecting their business data vulnerable to stealing loss, hackers, power outages, and natural disasters. lNo need to buy a program, but entering into a monthly or annual contract is also attractive, as is the reality that several applications are offered for free.
- 8. Disadvantages of Cloud Computing lSecurity Conerns lCloud computing is having your data easily reached via the web. lSecurity is stretched and is getting even more advanced as technology providers perfect the framework lRisk of losing internet connection lIf there is no internet connection, the database accessing is very difficult
- 9. Disadvantages of Cloud Computing lLimited resources for customizations lOne can require in-depth customizations and integration with his current systems for his daily business functions lAvailability lIf it happens, the cloud service goes down unexpectedly, leaving your without important information for hours or more
- 10. Disadvantages of Cloud Computing lData mobility and ownership lIn cloud environment, it is possible to get back the data safely even when the cloud service is stopped lHow can you be assured that the service provider will wipe out your data once you have cancelled the service? lPrivacy lHow much data the cloud service companies are collecting and how are they using the information?
- 11. Technologies in Cloud Computing lDistributed Systems lVirtualization lWeb 2.0 lService-Oriented Computing lUtility-Oriented Computing
- 12. •It is a collection of independent computers that appears to its users as a single coherent system •It share resources and to utilize them better •(resources – infrastructure, runtime environments and services) Distributed Systems
- 13. •Three factors that led to Cloud computing –Mainframes –Clusters –Grids Distributed System
- 14. •They are powerful, highly reliable computers specialized for bulk data processing and massive I/O operations •It is composed of Multiple processing units •Used by large organizations for online transactions, enterprise resource planning which process large amount of data. •It has collection of highly reliable computers that were “always-on” •No system shut-down was required to replaced failed components •Batch processing was the main application of mainframes – its popularity and deployment has reduced. •Still used in transaction processing Mainframes
- 15. •Advanced in technology created faster and powerful mainframes and supercomputers with low cost. •These were interconnected with high bandwidth network and controlled by specific software tools that them as single system •Cluster technology contributed to the evolution of tools and framework for distributed computing. Clusters
- 16. •It proposed a new approach to access large computational power, huge storage facilities and variety of services. •Grid initially developed as aggregation of geographically dispersed clusters by means of internet connection •Clusters are owned by different organization are shared •Reason of forming GridComputing –Cluster were considered as resource –They were often under utilized –Required computational power went beyond the capacity of single cluster –Enhancement in networking technology and diffusion of internet made possible long distance high bandwidth connectivity Grids
- 17. •It is a collection of solutions allowing the abstraction of some of the fundamental elements for computing like hardware, software, runtime environment, storage and networking. •It is around from 40 years, less in use because of limited technologies •Now, it is a fundamental part of cloud computing. •It allows creation of different computing environments – named as virtual. •Virtual – simulate the interface that is expected by a user. •Hardware Virtulization simulates the hardware expected by software. •Different software stack on same hardware that leads to virtual machine instances Virtualization
- 18. •Web is an interface to access cloud computing •It brought interactivity and flexibility into web pages - “Read-Write” Internet •It encompasses a set of technologies and services that facilitate interactive information sharing •It provides almost all functions that are available on desktop applications through XML, AJAX and web services etc. Web 2.0
- 19. •It is core part of cloud computing systems •It supports the development of rapid, low-cost, flexible, interoperable, and evolvable applications and systems •A service is an abstraction representing anything from a simple function to a complex business process. •A service is supposed to be loosely coupled, reusable, programming language independent, and location transparent •Services are composed and aggregated into a Service-Oriented Architecture (SOA), which is a logical way of organizing software systems to provide end users or other entities distributed over the network with services through published and discoverable interfaces. Service Oriented Computing
- 20. •Two fundamental concepts –Quality of Service (QoS) •A set of functional and non-functional attributes that can be used to measure the behavior of service •Parameters for the measurement response time, security attributes, transactional integrity, reliability and scalability. •QoS requirements are recognized between client and provide between SLA –Software as a Service (SaaS) •It is inherited from Application Service Provider (ASP) •Software services-based solutions were deliver across the wide area network on rental basis •ASP makes client freed from the maintenance cost and difficult upgrades •The SaaS follows Service Oriented Computing, where software component can be exposed and priced singularly, rather than entire applications. •This allows the delivery of complex business processes and transactions as a service, while allowing applications Service Oriented Computing
- 21. •Utility computing is a compute services in which resources such as storage, compute power, applications, and infrastructure are packaged and offered on a pay-per-use basis. •IBM offered its mainframe computing power to banks and government organizations through their data centers. •Business model requirements extended the mainframe technology. •Academia and research institutes with advent in cluster computing acquainted with the idea of power of an external IT infrastructure on demand. •Internet and web provided the utility computing at a world wide scale through simple interfaces. •Service-oriented computing and Service Oriented Architecture(SOA) made specific service within a software system Utility-Oriented Computing
- 22. Cloud Computing Migration Issues What You Need to Know ? lCurrent survey indicates that the cloud CPU will be used by many industrial giants in near future. lOur mission is as an IT Engineer is to understand lWhat is a cloud and what are the benefits it offers to clients? lWhat challenges and obstacles clients might have to overcome to tap into the cloud? lHow their management of IT must change to secure and control their new cloud driven infrastructure?
- 23. Issues you will face during migration on cloud lSecurity lIf cloud is not secure, fear of sensitive data to be tampered lVendor Management lWhen you realize that the cloud is not in your IT platform and it is in the hands of an outside firm, how do you guarantee that their technical or business problems won't become yours? lWhen the user is going to migrate with the outsource providers, then the service level agreements and its terms are thoroughly checked.
- 24. Issues you will face during migration on cloud lTechnical Integration lMost firms that migrate to the cloud environment in a hybrid model, keep certain key elements of their infrastruce in-house and under their direct control, while outsourcing less suspectible or core components. lIntegrating internal and external infrastructures can be a technical concern lProcess and Culture lWhen anyone with a credit card can surf the website of a public cloud vendor and dial-up teraflops of cloud capacity, how does IT maintain control of its application architecture? The Business View On Investment, high return
- 25. Key stages in Migrating to the Cloud 1) Plan Determine key business drivers Define business objectives Get executive sponsorship Set project guiding principles Form project team made up of IT and business representatives Develop a project plan by including the following Define business requirements Set key success metrics Set timeline Identify decision-making authorities
- 26. Key stages in Migrating to the Cloud 2) Execute Execute the plan Stay away from “scope creep” - stay focused on original project scope; this becomes a challenge particularly in cases, where a major legacy application with large users set is being replaced Remember to follow the guiding principles at all times Communicate to all stakeholders regularly Train users
- 27. Key stages in Migrating to the Cloud 3) Monitor Monitor adoption Track success metrics Stay away from scope creep (this one may well decide the success or failure of the project) Follow guiding principles Only Implement changes based on quantifiable business needs
- 28. Essential steps to reach migration and achieve ROI Start Small Define your goals, identify potential obstacles and define what being cloud-enabled will do for your organization in the long run. One must be ready to identify a few easy applications to shift that will distribute immediate benefits from being cloud enabled. Start with the ideas such as, e-mail and messaging and use them as test cases for further implementation
- 29. Essential steps to reach migration and achieve ROI Trust Cloud Vendors to Protect Data Weak poin of cloud computing is its security Improvement in security features with respect to data protection helps the cloud providers to deliver their service effectively. Importance of security features Many cloud providers should deliver good job of protecting data but not all As new providers pop up almost daily, it is important to do a comparision of these features-based and behaviour-based security-tools. Will they protect you against data leakage and IP theft? Do they have solid business continutiy and disaster-
- 30. Essential steps to reach migration and achieve ROI Be an identity provider There is one thing cloud providers cannot handle for customer that is, the integrity of their users. You have to convey your cloud provider, whom to let in and what privileges each person should receive. You also have to define the mechanisms by which authentication, access and roles will be enforced. To protect sensitive data in the cloud, absolute verification of user's identity is very essential
- 31. Essential steps to reach migration and achieve ROI Plan for latency and outages are two major lapses for cloud other than security. When you pick applications to move to the cloud, you can not overlook the problems that arise when you rely on delivery over the public Internet. Keep latency-sensitive applications in-house and implement a hybrid cloud model.