How to Cloud - The Ultimate Guide to Cloud Computing
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This document provides a comprehensive overview of cloud computing, explaining its definition, characteristics, service models (SaaS, PaaS, IaaS), and deployment models (public, private, hybrid, community). It also discusses the benefits of cloud computing, such as cost savings and scalability, as well as security responsibilities shared between the provider and the customer. Additionally, it highlights the need for careful vendor selection and considerations before migrating to the cloud.
How to Cloud - The Ultimate Guide to Cloud Computing
- 1. BY AWESOME DEVELOPERS WWW.AWESOMEDEVELOPERS.EU HOW TO CLOUD THE ULTIMATE GUIDE TO CLOUD COMPUTING
- 2. WHAT CLOUD COMPUTING MEANS? What is the cloud? Where is the cloud? Are we in the cloud now? These are all questions you've probably heard or even asked yourself. The term "cloud computing" is everywhere. In the simplest terms, cloud computing means storing and accessing data and programs over the Internet instead of your computer's hard drive. The cloud is just a metaphor for the Internet. It goes back to the days of flowcharts and presentations that would represent the gigantic server-farm infrastructure of the Internet.
- 3. On demand services1 COMMON CLOUD CHARACTE RISTICS Ubiquitous network access: anywhere, anytime, any device2 Location independent Resource Pooling 3 4 Rapid elasticity Pay-as-you-go5
- 5. SOFTWARE AS A SERVICE (SAAS) FLEXIBLE PAYMENT Pay-as-you-go subscribtion Better and more predictable budget Users can terminate SaaS offerings at any time is a software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet. SCALABLE USAGE High scalability, which gives customers the option to access more, or fewer, services or features on-demand.
- 6. AUTOMATIC UPDATES Customers can rely on a SaaS provider to automatically perform updates and patch management Reduces the burden on in- house IT staff ACCESSIBILITY AND PERSISTENCE Users can access them from any Internet-enabled device and location Organizations can integrate SaaS applications with other software using application programming interfaces (APIs) There are SaaS applications for fundamental business technologies, such as email, sales management, customer relationship management (CRM), financial management, human resource management, billing and collaboration
- 7. PLATFORM AS A SERVICE (PAAS) is a cloud computing model that delivers applications over the Internet. In a PaaS model, a cloud provider delivers hardware and software tools -- usually those needed for application development -- to its users as a service. A PaaS provider hosts the hardware and software on its own infrastructure. As a result, PaaS frees users from having to install in-house hardware and software to develop or run a new application. A business relies on PaaS providers for key services, such as Java development or application hosting. A PaaS provider supports all the underlying computing and software for developmnet; users only need to log in and start using the platform – usually through a Web browser interface.
- 8. INFRASTRUCTURE AS A SERVICE (IAAS) is a form of cloud computing that provides virtualized computing resources over the Internet. In an IaaS model, a third-party provider hosts hardware, software, servers, storage and other infrastructure components on behalf of its users. IaaS providers also host users' applications and handle tasks including system maintenance, backup and resiliency planning. IaaS platforms offer highly scalable resources that can be adjusted on- demand. This makes IaaS well-suited for workloads that are temporary, experimental or change unexpectedly.
- 9. COST SAVINGS OF THE CLOUD
- 10. FOCUS ON CORE BUSINESS Cloud Computing allows organizations to focus on their core business and abstract responsibility for what are essentially commodity services to a third party IT departments should be performing highly strategic work It has even been estimated that 80% of IT expenditure goes to simply “keeping the lights on” for an organization.
- 11. The two reasons for reduced total cost of ownership from Cloud Computing are economies of scale and utility pricing It is important to assess a number of issues relating to Cloud Computing vendor pricing, billing capabilities, fixed costs and contract minimums. SAVINGS THROUGH PROPER VENDOR SELECTION
- 12. In order to enjoy cost benefits from Cloud Computing, billing needs to be as granular as possible (the finer the utility cost is divided, the higher the savings are likely to be) Cloud Computing infrastructure should be able to be billed on an hourly basis. BILLING CAPABILITIES
- 13. It is important to assess whether the prospective vendor has a minimum charge for cloud compute and storage services, and whether they demand a minimum contract period. One of the benefits of Cloud Computing is the ability to both scale infrastructure to peak demand, and also move work-loads between providers at will. Any minimum charges or contract periods for compute or storage services are a barrier to this flexibility and should be avoided. MINIMUM CHARGES
- 17. PUBLIC CLOUD A type of cloud hosting in which the cloud services are delivered over a network that is open for public usage. The service provider renders services and infrastructure to various clients. The customers do not have any distinguishability and control over the location of the infrastructure. From the technical viewpoint, there may be slight or no difference between private and public clouds’ structural design except in the level of security offered for various services given to the public cloud subscribers by the cloud hosting providers.
- 18. PRIVATE CLOUD The platform for cloud computing is implemented on a cloud-based secure environment that is safeguarded by a firewall which is under the governance of the IT department that belongs to the particular corporate. Private cloud as it permits only the authorized users, gives the organisation greater and direct control over their data. Businesses that have dynamic or unforeseen needs, assignments which are mission critical, security alarms, management demands and uptime requirements are better suited to adopt private cloud.
- 19. HYBRID CLOUD It can be an arrangement of two or more cloud servers, i.e. private, public or community cloud that is bound together but remain individual entities. It permits the user to increase the capacity or the capability by aggregation, assimilation or customization with another cloud package / service. In a hybrid cloud, the resources are managed and provided either in- house or by external providers. It is an adaptation among two platforms in which the workload exchanges between the private cloud and the public cloud as per the need and demand.
- 20. COMMUNITY CLOUD Is a type of cloud hosting in which the setup is mutually shared between many organisations that belong to a particular community, i.e. banks and trading firms. A community cloud may be internally managed or it can be managed by a third party provider. It can be hosted externally or internally. The cost is shared by the specific organisations within the community, hence, community cloud has cost saving capacity.
- 22. Cloud computing security is similar to security within your own data center - only without the costs of equipment and hardware maintenance. Using Cloud you do not manage servers or storage devices physically. Instead, you can use software security tools based on monitoring and protection of the flow of information to and from the cloud resources. Security in the cloud forces a shared responsibility. Typically the Cloud Service Provider (CSP) will take care of the physical security of their data centers and equipment – meaning the physical hardware, networking and the security of the cloud infrastructure & hypervisor. The customer is usually responsible for everything that runs on this infrastructure – including the operating systems, applications and services as well as the configuration of these items. WHAT TO DO BEFORE MIGRATING TO CLOUD
- 23. Strict Regulatory Standards Higher regulatory requirements lead to better security solutions. 1CLOUD SECURITY STANDARDS 2 3 Security Tools Many top cloud providers include access to extra security programs. Confidentiality Customer data is kept confidential. 4 DDoS Mitigation A bigger company is able to better protect against DDoS attacks.
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