INTRODUCTION TO CLOUD COMPUTING .pptx

INTRODUCTION TO CLOUD COMPUTING

1. Unit- 3

2. Introduction to Cloud Computing Cloud Computing is the delivery of computing services such as servers, storage, databases, networking, software, analytics, intelligence, and more, over the Cloud (Internet ). Cloud Computing provides an alternative to the on-premises data centre . With an on-premises data centre , we have to manage everything, such as purchasing and installing hardware, virtualization, installing the operating system, setting up the network, configuring the firewall, and setting up storage for data. After doing all the set-up, we become responsible for maintaining it through its entire lifecycle.

3. But if we choose Cloud Computing, a cloud vendor is responsible for the hardware purchase and maintenance. They also provide a wide variety of software and platform as a service. We can take any required services on rent. The cloud environment provides an easily accessible online portal that makes handy for the user to manage the compute, storage, network, and application resources. Some cloud service providers are in the following figure.

4. Before Computing was come into existence, client Server architecture was used where all the data and control of client resides in Server side. If a single user want to access some data, firstly user need to connect to the server and after that user will get appropriate access. But it has many disadvantages. Next Distributed Computing was come into existence, in this type of computing all computers are networked together with the help of this, user can share their resources when needed. It also has certain limitations. So in order to remove limitations faced in distributed system, cloud computing was emerged.

5. During 1961, John MacCharty delivered his speech at MIT that “Computing Can be sold as a Utility, like Water and Electricity.” According to John MacCharty it was a brilliant idea. But people at that time don’t want to adopt this technology. They thought the technology they are using efficient enough for them.   So , this concept of computing was not appreciated much so and very less will research on it. But as the time fleet the technology caught the idea after few years this idea is implemented. So , this is implemented by Salesforce.com in 1999. 

6. This company started delivering an enterprise application over the internet and this way the boom of Cloud Computing was started. In 2002, Amazon started Amazon Web Services (AWS), Amazon will provide storage, computation over the internet . In 2006 Amazon launched Elastic Compute Cloud Commercial Service which is open for Everybody to use   After that in 2009, Google Play also started providing Cloud Computing Enterprise Application as other companies will see the emergence of cloud Computing they also started providing their cloud services. Thus , in 2009, Microsoft launch Microsoft Azure and after that other companies like Alibaba , IBM, Oracle, HP also introduces their Cloud Services.

7. Benefits Of Cloud Computing 1. Data Security Data security is one of the most significant factors that keep business owners up at night. Cloud computing can help alleviate this stress.  In the past, there have always been arguments that cloud-based platforms are at risk of being hacked. However, the cloud’s heavy encryption reduces the risk of data theft.  Organizations trust cloud computing and that by 2025, total worldwide data storage on cloud is expected to exceed 200 zettabytes. 

8. 3. Cost Reduction Switching to any new technology can incur some costs.   Consider it an investment that can pay off in the long run. The ROI can be in the form of product longevity & scalability, to name a few, and eliminates the need for extra software and server maintenance costs. Plus, the pay-as-you-go model means you only pay for what you need. 4. Complete control Data loss, lags, and operational dysfunction often lead to immense scrutiny for organizations. The cloud provides sufficient control over the company’s ongoing activities. Using the Cloud, users can track the accessibility, usability, and deployability of sensitive data . A direct path to task execution is enabled, and the work can be understood clearly. 

9. 5. Flexibility Focusing on more than just your in-house IT structure can be limiting and lead to poor execution. Instead, you need to optimize your space to cater to your customers’ needs and be unrestricted by low bandwidth.  That’s where the Cloud comes in.  It’s flexible and can handle last-minute changes without compromising on quality. As a result, you can make quick business decisions without worrying about IT infrastructure impacts.  6. Mobility The presence of the cloud marks mobility as its prime feature. With the help of cloud connection, companies can easily connect remotely over an array of devices like smart phones, laptops. Moreover, it enables quick turnaround time, instant solutions, and constant connection.  

10. 7. Disaster Recovery The biggest disaster a company can undergo is “loss of data.” Did you know that a ransom ware attack could typically cost you $4.54 million? However, the cloud is a repository for backed-up data, which helps companies recover their lost data with ease and security. The cloud downsizes the time wasted on technical errors, lags to the deterred server, and other drawbacks. As a result, the cloud can help businesses optimize data recovery and save time and effort.  8. Scalability Scalability is the most sought-after attribute of cloud computing that can help accelerate business growth.

11. The cloud system’s availability allows businesses to quickly scale up or down in response to changing circumstances and needs. Furthermore, employing the cloud frees up time for companies to focus on running their operations.  12. Easy Management Since the organizational data is stored in the cloud, it is easy to access the work, utilities, and tasks. Compared to previous techniques, cloud service management is fairly simple because data is organized and stored in the cloud with easy access. 

12. Limitations of Cloud Computing Every technology has both positive and negative aspects that are highly important to be discussed before implementing it. Limitations are: 1. Vulnerability to attacks: Storing data in the cloud may pose serious challenges of information theft since in the cloud every data of a company is online. Security breach is something that even the best organizations have suffered from and it’s a potential risk in the cloud as well.

13. 2. Network connectivity dependency: Cloud Computing is entirely dependent on the Internet. This direct tie-up with the Internet means that a company needs to have reliable and consistent Internet service as well as a fast connection and bandwidth to reap the benefits of Cloud Computing. 3. Downtime: Downtime is considered as one of the biggest potential downsides of using Cloud Computing. The cloud providers may sometimes face technical outages that can happen due to various reasons, such as loss of power, low Internet connectivity, data centres going out of service for maintenance, etc. This can lead to a temporary downtime in the cloud service.

14. 4. Vendor lock-in: When in need to migrate from one cloud platform to another, a company might face some serious challenges because of the differences between vendor platforms. Hosting and running the applications of the current cloud platform on some other platform may cause support issues, configuration complexities, and additional expenses. 5. Limited control: Cloud customers may face limited control over their deployments. Cloud services run on remote servers that are completely owned and managed by service providers, which makes it hard for the companies to have the level of control that they would want over their back-end infrastructure.

15. How to Build a Cloud Computing Infrastructure : 1. Define your business needs and goals Before a business can implement a cloud computing infrastructure, it needs to carefully define its needs and goals. These needs and goals can be evaluated by asking questions such as: What types of workloads will be moved to the cloud? How many users will need to access shared cloud resources? What are the performance and availability requirements? How much data needs to be stored, and how often will it need to be accessed? Once these needs are understood, the next step is to identify which cloud deployment model – public, private, or hybrid – is best suited for the business. Finally, the cloud service provider must be selected and the infrastructure put in place. There are a number of different cloud computing providers, each with their own unique offerings. It is important to compare and contrast these options in order to find the best fit for the business.

16. 2. Choose the right cloud platform Determining which cloud platform is the best fit for a business can be difficult. There are a variety of cloud providers – including those offering private cloud, hybrid cloud and public cloud services. Each of these providers comes with their own set of features and pricing models. It is important to select a platform whose cloud computing services meet the specific requirements of the business. “One way to narrow down the choices is to consider the cloud computing infrastructure offered by each provider. For example, if a business needs a scalable and highly available infrastructure, then a provider that offers these features should be at the top of the list. Another consideration is the price model. Some cloud providers charge by the hour, others have monthly or annual subscription plans. Finally, it is also important to consider customer support when selecting a cloud platform.

17. 3. Set up your virtual infrastructure Once the cloud provider has been selected, businesses can begin to migrate their existing data and applications to the cloud infrastructure. Here are a few insider tips to make the data migration process go smoothly: Take inventory of what you need to migrate This will help you determine which cloud provider is a good fit, and what kind of migration tools you’ll need. Establish a timeline and business case for the migration This will help you get buy-in from stakeholders and ensure that the project stays on track. Check the cloud technology included with your cloud provider Finally, consider using a cloud platform that offers built-in migration tools. This can save you time and money.

18. 4. Configure security and networking Cloud computing architectures are highly secure, but you’ll need to take steps to protect your data. When configuring security and networking for a cloud computing infrastructure, there are a few important factors to consider. First, you need to make sure that all data is properly encrypted. This will help to protect sensitive information from being accessed by unauthorised users. Second, you need to ensure that the network is properly configured. This includes setting up firewalls and implementing robust authentication and authorisation controls in order to ensure that only authorised users have access to the network and its sensitive data. See how we upgraded the IT  infrastructure for Frederick Cooper . Finally, you need to make sure that the  cloud computing  infrastructure is properly monitored. This includes monitoring for unusual activity and keeping an eye out for any potential security threats, especially if you are using public cloud computing. Security threats can sometimes present as a disadvantage of cloud computing, but generally the positives outweigh the negatives. Find out more  advantages and disadvantages of cloud computing .

19. 5. Configure your storage solutions When configuring storage solutions in a cloud computing infrastructure, it’s important to consider the needs of your applications and workloads. For example, if you’re running a cloud-based database, you’ll need to ensure that your storage solution can provide the required performance and capacity for both your operating systems and your data storage, especially if you’re a business with a large data set. If you need more information about  where data is stored in cloud computing , we’ve got the perfect blog. You’ll also need to consider issues such as data redundancy and security. Fortunately, there are many different storage solutions available for cloud environments, so you should be able to find one that meets your specific needs. Once you’ve selected a storage solution, you’ll need to configure it appropriately for your cloud infrastructure. This process will vary depending on the solution you’ve chosen, but in general, you’ll need to create storage accounts and set up replication and security. By taking the time to properly configure your cloud-based storage solution, you can help ensure that your applications and workloads have the resources they need to run smoothly .

20. 6. Deploy your applications Businesses will also need to deploy their applications to the cloud infrastructure. This can be done using a platform-as-a-service ( PaaS ) solution or by manually provisioning virtual machines (VMs) and other resources.  In the cloud, applications are hosted on a network of remote servers, which are accessed over the internet. When deploying applications in a cloud computing infrastructure, it’s important to consider the below factors which can help with successfully deploying applications in the cloud: First, make sure that your application is compatible with the cloud platform you’re using. Not all applications are well suited for cloud deployment, so it’s important to do your research upfront. Second, create a detailed plan for how you will deploy your application. This should include both the technical aspects of the deployment as well as any business or organisational considerations. Third, test your application thoroughly before deploying it to the cloud. This will help to ensure that there are no unforeseen issues when you go live. Finally, be prepared to scale your application according to demand. Cloud deployments can often experience spikes in traffic, so it’s important to have a plan in place for how you will handle increased demand.