Cloud Computing (Infrastructure as a Service)UNIT 2
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This document provides an overview of Infrastructure as a Service (IaaS) cloud computing models. It defines IaaS and describes its key characteristics. It then discusses the three main IaaS deployment models - private cloud, public cloud, and hybrid cloud. For each model, it outlines their definition, examples, advantages and disadvantages. Finally, it lists several important aspects to consider when managing a hybrid cloud environment, such as integration, security, resource optimization, and automation.
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Cloud Computing (Infrastructure as a Service)UNIT 2
- 1. Cloud as IaaS (Infrastructure as a Service) UNIT 2 BY:SURBHI SAROHA
- 2. SYLLABUS Introduction to IaaS Private Cloud Environment Public Cloud Environment Managing Hybrid Cloud environment
- 3. Introduction to IaaS Iaas is also known as Hardware as a Service (HaaS). It is one of the layers of the cloud computing platform. It allows customers to outsource their IT infrastructures such as servers, networking, processing, storage, virtual machines, and other resources. Customers access these resources on the Internet using a pay-as-per use model. In traditional hosting services, IT infrastructure was rented out for a specific period of time, with pre-determined hardware configuration. The client paid for the configuration and time, regardless of the actual use. With the help of the IaaS cloud computing platform layer, clients can dynamically scale the configuration to meet changing requirements and are billed only for the services actually used.
- 4. CONT…. IaaS cloud computing platform layer eliminates the need for every organization to maintain the IT infrastructure. IaaS is offered in three models: public, private, and hybrid cloud. The private cloud implies that the infrastructure resides at the customer-premise. In the case of public cloud, it is located at the cloud computing platform vendor's data center, and the hybrid cloud is a combination of the two in which the customer selects the best of both public cloud or private cloud.
- 5. IaaS provider provides the following services - Compute: Computing as a Service includes virtual central processing units and virtual main memory for the Vms that is provisioned to the end- users. Storage: IaaS provider provides back-end storage for storing files. Network: Network as a Service (NaaS) provides networking components such as routers, switches, and bridges for the Vms. Load balancers: It provides load balancing capability at the infrastructure layer.
- 7. Private Cloud Environment Private cloud is also known as an internal cloud or corporate cloud. Private cloud provides computing services to a private internal network (within the organization) and selected users instead of the general public. Private cloud provides a high level of security and privacy to data through firewalls and internal hosting. It also ensures that operational and sensitive data are not accessible to third- party providers. HP Data Centers, Microsoft, Elastra-private cloud, and Ubuntu are the example of a private cloud.
- 9. Advantages of Private cloud There are the following advantages of Private Cloud - 1) More Control Private clouds have more control over their resources and hardware than public clouds because it is only accessed by selected users. 2) Security & privacy Security & privacy are one of the big advantages of cloud computing. Private cloud improved the security level as compared to the public cloud. 3) Improved performance Private cloud offers better performance with improved speed and space capacity.
- 10. Disadvantages of Private Cloud 1) High cost The cost is higher than a public cloud because set up and maintain hardware resources are costly. 2) Restricted area of operations As we know, private cloud is accessible within the organization, so the area of operations is limited. 3) Limited scalability Private clouds are scaled only within the capacity of internal hosted resources. 4) Skilled people Skilled people are required to manage and operate cloud services.
- 11. What is private cloud? Private cloud is a cloud computing environment dedicated to a single customer. It combines many of the benefits of cloud computing with the security and control of on-premises IT infrastructure. Private cloud (also known as an internal cloud or corporate cloud) is a cloud computing environment in which all hardware and software resources are dedicated exclusively to, and accessible only by, a single customer. Private cloud combines many of the benefits of cloud computing—including elasticity, scalability, and ease of service delivery—with the access control, security, and resource customization of on-premises infrastructure.
- 12. Public Cloud Environment Public Cloud provides a shared platform that is accessible to the general public through an Internet connection. Public cloud operated on the pay-as-per-use model and administrated by the third party, i.e., Cloud service provider. In the Public cloud, the same storage is being used by multiple users at the same time. Public cloud is owned, managed, and operated by businesses, universities, government organizations, or a combination of them. Amazon Elastic Compute Cloud (EC2), Microsoft Azure, IBM's Blue Cloud, Sun Cloud, and Google Cloud are examples of the public cloud.
- 14. Advantages of Public Cloud There are the following advantages of public cloud - 1) Low Cost Public cloud has a lower cost than private, or hybrid cloud, as it shares the same resources with a large number of consumers. 2) Location Independent Public cloud is location independent because its services are offered through the internet. 3) Save Time In Public cloud, the cloud service provider is responsible for the manage and maintain data centers in which data is stored, so the cloud user can save their time to establish connectivity, deploying new products, release product updates, configure, and assemble servers.
- 15. CONT…… 4) Quickly and easily set up Organizations can easily buy public cloud on the internet and deployed and configured it remotely through the cloud service provider within a few hours. 5) Business Agility Public cloud provides an ability to elastically re-size computer resources based on the organization's requirements. 6) Scalability and reliability Public cloud offers scalable (easy to add and remove) and reliable (24*7 available) services to the users at an affordable cost.
- 16. Disadvantages of Public Cloud 1) Low Security Public Cloud is less secure because resources are shared publicly. 2) Performance In the public cloud, performance depends upon the speed of internet connectivity. 3) Less customizable Public cloud is less customizable than the private cloud.
- 17. Managing Hybrid Cloud environment Hybrid cloud management is taking the best of both worlds, allowing companies to use their private cloud in addition to a public cloud (on- premises data storage). In certain cases, cloud management solutions employ the use of an in-house private cloud together with multiple public clouds. This is called a multi- cloud configuration. In a hybrid cloud management system, companies have the advantage of being able to keep sensitive data that must be stored in-house while also optimizing the use of public cloud storage for everything else. This can significantly reduce costs as well as time spent on in-house private cloud management.
- 18. CONT….. Here are some key aspects to consider when managing a hybrid cloud environment: Integration and Interoperability: Ensure seamless communication and data flow between on- premises systems and cloud services. Utilize integration tools and APIs provided by cloud service providers to facilitate interoperability. Security and Compliance: Implement robust security measures to protect data across hybrid environments. This includes encryption, access controls, identity management, and compliance with relevant regulations. Resource Optimization: Optimize resource usage across hybrid cloud infrastructure to ensure cost-effectiveness and performance. Use tools for workload placement, load balancing, and auto-scaling to dynamically adjust resources based on demand. Monitoring and Management: Implement monitoring tools to track the performance, availability, and security of hybrid cloud resources. Utilize centralized management platforms to streamline administration and automate routine tasks.
- 19. CONT….. Data Management: Develop a comprehensive data management strategy to govern data lifecycle, replication, backup, and recovery across hybrid environments. Consider data sovereignty, residency, and compliance requirements when managing data in the cloud. Disaster Recovery and Business Continuity: Implement disaster recovery plans and backup strategies to ensure business continuity in the event of outages or data loss. Leverage cloud-based backup and replication services for resilient disaster recovery solutions. Vendor Management: Coordinate with multiple cloud service providers and vendors to effectively manage hybrid cloud resources. Negotiate service level agreements (SLAs) and establish clear communication channels for support and troubleshooting. Scalability and Flexibility: Take advantage of the scalability and flexibility offered by hybrid cloud environments to accommodate changing business needs and seasonal fluctuations in demand. Implement scalable architectures and leverage cloud-native services for agility.
- 20. CONT…. DevOps and Automation: Embrace DevOps practices and automation tools to streamline deployment, configuration management, and software delivery in hybrid cloud environments. Implement continuous integration and continuous deployment (CI/CD) pipelines for rapid and reliable software releases. Training and Skill Development: Invest in training and skill development for IT staff to ensure they have the expertise needed to effectively manage hybrid cloud environments. Stay updated on emerging technologies and best practices through certifications, workshops, and industry events.
- 21. Thank you