Cloud computing is radically transforming the information technology landscape the world over as a growing number of companies use the cloud to streamline processes, gain visibility and reduce costs. Organizations can avoid upfront large capital investments in data centers and application purchases and replace it with monthly costs based on usage. The ability to modify capacity by provisioning additional resources or releasing idle resources on demand allows organizations to manage their monthly expenses and yet meet operational parameters. Clouds may be limited to a single organization (enterprise clouds), be available to many organizations (public cloud), or a combination of both (hybrid cloud).
Why Cloud Computing?
No Software to purchase.
No Hardware Maintenance
Before Cloud, organization planning to expand their IT Infrastructure used to have many concerns like acquire hardware, need extra space, deployment, implementing the same, downtime in productive hours etc. Cloud Computing has helped organizations to expand their IT Infrastructure without expanding their on-premise environment.
Benefits of Cloud Computing
Cost Effective - Cloud computing reduces the expense of buying hardware, software and maintaining them at on-premise data center. Pay for what you use - Pay only for those resources which you want to use. Easy Scale up and scale down facility - Cloud Computing gives you the facility to configure your servers for high level uses and low level uses. These changes can be done in an easy way.Data Center security - Cloud Computing provides data backup, disaster recovery with effective cost.Performance - With Cloud Computing your application never goes down. Cloud Computing reduces network latency which boosts the performance of your application or website. Updated Hardware - Need not have to worry about what sort of application/services you are hosting on the cloud because the hardware like RAM, Processors etc that you are using, will be automatically updated to the latest one.Pay only for the resource which you use
For a number of companies using Microsoft's Azure cloud is a logical extension of their engagement with Microsoft technologies such as MS Office, SharePoint and Windows Servers. According to the Gartner report of May, 2015, Azure is the #2 ranked provider of Cloud Services and Infrastructure.Microsoft Azure Management Portal is a portal to manage Azure services, which was released in 2012. This is a platform provided by Microsoft for its Azure clients where they can see, manage and buy the services offered by Azure. A different portal called 'Azure Preview Portal' was released by Azure team in 2014, which makes it easier to access the platform on mobiles and tablets. You can create virtual network on cloud or you can also connect to the on-premise local network to the cloud network in Windows Azure.Microsoft Azure - Traffic Manager balances the traffic load of services hosted in Azure. The routing policy is defined by the client and traffic to the services hosted in Azure is redirected according to set policies. Traffic manager is a DNS-based service. Thus, it will improve the availability and performance applications.PowerShell is a framework or you can say an interface built by Azure team that lets the user to automate and manage Windows Azure services. It is a command line tool that uses the scripts or cmdlets to perform tasks such as creating and managing storage accounts or Virtual Machines that can easily be done using the preset commands.
Amazon Web Services (AWS)
AWS is the #1 ranked provider of Cloud Services and Infrastructure. Amazon has provided more computing capacity to its customers than the remaining cloud providers combined.AWS EC2, where EC2 stands for Elastic Compute Cloud. EC2 allow users to use virtual machines of different configurations as per their requirement. It allows various configuration options, mapping of individual server, various pricing options, etc. S3 stands for Simple Storage Service. It allows the users to store and retrieve various types of data using API calls. It doesnot contain any computing element.Load balancing simply means to hardware or software load over web servers, that improver's the efficiency of the server as well as the application. Following is the diagrammatic representation of AWS architecture with load balancing.Amazon Cloud-front is optimized to work with other Amazon Web Services, like Amazon S3 and Amazon EC2. It also works fine with any non-AWS origin server and stores the original files in a similar manner.In Amazon Web Services, there are no contracts or monthly commitments.Elastic Load Balancing can dynamically grow and shrink the load-balancing capacity as per the traffic conditions.Amazon Elastic Cache is a web service that manages the memory cache in the cloud.Amazon RDS (Relational Database Service) provides a similar access as that of MySQL, Oracle, or Microsoft SQL Server database engine. The same queries, applications, and tools can be used with Amazon RDS.AWS cloud provides various options for storing, accessing, and backing up web application data and assets.
You will find that cloud services often have integrations with other services, saving you tons of money when the need arises to tie systems together. Some examples:
Point-of-sale systems: Automatic synchronization of products and stock levels into your e-commerce store.
Project management systems: Automatic synchronization of projects and tasks into other task-based systems, automatic date synchronization into popular calendar apps such as Google Calendar or Office 365 Calendar.
Online web forms: Automatic population of sales leads into a CRM like Salesforce.
Transactional email and marketing systems: Automatic synchronization of contacts to and from CRMs.
Code repositories: Automatic creation of new software issues from bug reporting systems.
Team chat apps: Department-specific notifications for infrastructure alerts.
Social media: Automatically publish content to sites like LinkedIn.
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