Migration Cloud computing is an emerging technology delivering on-demand service to users. Significant innovations in virtualization and access to high-speed Internet have accelerated cloud computing Technology. It’s a set of hardware, networks, storage, services and interfaces that enable the delivery of computing as a service. Users can gain access via the internet to the file or application those that are not stored in their computer but on remote servers. It revolutionizes IT infrastructures and is a subscription-based service. Economical in the sense user can eliminate capital investment in hardware and facilities, pay for only what they use.
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Various Delivery Models Include:
Infrastructure-as-a-Service (IaaS) – Provides basic storage, operating systems, computing capabilities as standardize services
Platform-as-a-Service (PaaS)– A software development environment incorporated and offered to build higher levels of service
Software-as-a-Service (SaaS) -A single instance of the service runs on the cloud and multiple end-users are serviced
Types of Deployment Models
Private Cloud – Used by business firms and is reserved for specific clientele. This model offers convenience & versatility as well as preserves the management and security common to local data centers.
Public Cloud – Public cloud are managed by service providers who deliver the Service over the internet and payment is raised based on use, even though long term commitments are available for many services.
Hybrid Cloud – An unified, automated, scalable environment that takes advantage of all that a public cloud infrastructure can provide, while still maintaining control over mission-critical data.
Cloud Computing Benefits:
- Improved Performance
- Lower Hardware and Software maintenance
- Instant Accessibility
- Automatic software updates
- Better collaboration
- Pay for what you use
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Potential benefits of cloud migration
There are many problems that moving to the cloud can solve. Here are some typical scenarios that will benefit from cloud migration.
- Your application is experiencing increased traffic and it’s becoming difficult to scale resources on the fly to meet the increasing demand.
- You need to reduce operational costs while increasing the effectiveness of IT processes.
- Your clients require fast application implementation and deployment and thus want to focus more on development while reducing infrastructure overhead.
- Your clients want to expand their business geographically, but you suspect that setting up a multi-region infrastructure – with all the associated maintenance, time, human, and error control effort – is going to be a challenge.
- It’s becoming more difficult and expensive to keep up with your growing storage needs.
- You’d like to build a widely distributed development team. Cloud computing environments allow remotely located employees to access applications and work via the internet.
- You need to establish a disaster recovery system but setting it up for an entire data center could double the cost. It would also require a complex disaster recovery plan. Cloud disaster recovery systems can be implemented much more quickly and give you much better control over your resources.
- Tracking and upgrading underlying server software is a time consuming, yet an essential process that requires periodic and sometimes immediate upgrades. In some cases, a cloud provider will take care of this automatically. Some cloud computing models similarly handle many administrative tasks such as database backup, software upgrades, and periodic maintenance.
- Capex to Opex: Cloud computing shifts IT expenditure to a pay-as-you-go model, which is an attractive benefit, especially for startups.