Cloud Computing: Is it really useful?
Cloud computing is the process of on-demand access using the internet to compute the applications, tool development, data storage to networking, etc. This will be managed by the cloud service provider at the data center. This service can be utilized through the subscription either monthly or yearly according to the user. Since the storage and other process are done through the internet, It reduces the costs of procurement and managing the physical infrastructure. It helps to access the applications quickly through the internet. Also, we can save time by not waiting to install the software and configure the application. It is the driving force and provides more energy to the data scientists and developers. It opens the way for the applications to reach out to the end-users through the service provider across the globe. Also, the user can scale the capacity easily during the unused time and save money.
What are the services it provides?
IBM i cloud provides services in three different models such as PaaS called Platform as a Service, IaaS called Infrastructure as a Service and SaaS called Software as a Service. It is very difficult for all the models by the concern and sometimes it creates confusion between them.
SaaS: It is a cloud application or software which can access through the web browser. Different pricing makes it flexible, the subscription may be either monthly or yearly sometimes Pay-as-you-go” according to the usage. It saves the cost, time also the features are upgraded automatically. Since the data are stored in the cloud no need to worry about data loss in case of device failure. For commercial software, it is the primary model.
PaaS: The cloud service provider hosts all at their data centers such as databases, operating system software, servers, middleware, storage, and network. It is user-friendly and the developer simply can choose the options from the menu and they can easily build, test, and run the applications.
IaaS: This provides the service by on-demand to the basic computing resources. This can be avail based on pay-as-you-go through the internet. IaaS delivers less control of computing facilities in the cloud. It provides permission to customize the resources according to their requirements.
Classification of Cloud Computing
IBM i Cloud computing is classified into various categories according to the service such as Private Cloud, Public Cloud, Hybrid Cloud.
Private cloud: It is an environment where the computing resources are accessible by, only one customer. Elasticity and scalability are the benefits of this private cloud. Apart from this, this holds many benefits of cloud computing.
Public Cloud: Computing resources able to access free or pay in use and easy through the public internet.
Hybrid Cloud: It is a combination of both private and public environments.