Unit III - Virtualization in Cloud Computing

Overview

This unit explores the concept of virtualisation, which is fundamental to cloud computing. It covers types of virtualisation, virtualisation architecture, and its application in cloud and grid computing.

Topics

• Definition of VirtualizationDefinition of VirtualizationDefinition Virtualisation in cloud computing is a technology that allows the creation of multiple simulated environments or dedicated resources from a single, physical hardware system. It enables the abstraction and *partitioning of a physical machine* into multiple *virtual machines* (VMs), each running its own operating system and applications as if it were a separate physical device. Key Concepts hypervisor: **Software that creates and manages virtual machines by providing a virtual operat ✅ 2024-05-24
• Adopting VirtualizationAdopting VirtualizationDefinition Adopting virtualization in cloud computing involves the implementation and integration of virtualization technologies within an organization's IT infrastructure to enhance efficiency, scalability, and resource utilization. It includes the strategic deployment of virtual machines, hypervisors, and management tools to create a flexible, dynamic computing environment. Key Concepts Virtualization Strategy*: The plan and approach for integrating virtualization into an organization’s inf ✅ 2024-05-24
• Types of VirtualizationTypes of VirtualizationDefinition Virtualization in cloud computing involves creating virtual versions of physical resources, such as servers, storage devices, networks, and even entire operating systems. This abstraction allows multiple virtual resources to run on a single physical resource, enhancing efficiency, flexibility, and scalability. Key Concepts Server Virtualization**: Creating multiple virtual servers from a single physical server. Storage Virtualization*: Combining multiple physical storage devices in ✅ 2024-05-24
• Virtualization Architecture and SoftwareVirtualization Architecture and SoftwareDefinition Virtualization architecture refers to the framework and components that enable the creation, management, and operation of virtual environments. Virtualization software includes hypervisors and management tools that facilitate the deployment and control of virtual machines (VMs) and other virtual resources. Key Concepts hypervisor: The **core software that enables virtualization by allowing multiple operating systems to run concurrently on a host machine. Type 1 Hypervisor (Bare-Met
• Virtual ClusteringVirtual ClusteringDefinition Virtual clustering involves the grouping of virtual machines (VMs) to work together as a single cohesive unit, providing high availability, load balancing, and resource optimization. It allows for the management of multiple VMs as a collective entity to enhance performance and scalability in cloud environments. Key Concepts Cluster**: A collection of interconnected VMs that work together to perform computing tasks, offering redundancy and scalability. High Availability (HA)**: Ensu
• Virtualization ApplicationVirtualization ApplicationDefinition Virtualization application refers to the use of virtualization technologies to deploy, manage, and optimize various types of computing environments and workloads. These applications leverage virtual machines (VMs), containers, and other virtualization techniques to provide scalable, flexible, and efficient solutions for IT infrastructure. Key Concepts Virtual Machines (VMs)**: Software-based emulations of physical computers that run an operating system and applications. Containers*
• Pitfalls of VirtualizationPitfalls of VirtualizationDefinition The pitfalls of virtualization refer to the potential challenges, risks, and drawbacks associated with implementing and managing virtualized environments. These pitfalls can impact performance, security, cost-efficiency, and overall effectiveness of virtualization initiatives if not properly addressed. Key Concepts Resource Contention: **Competition for physical resources among multiple virtual machines (VMs) leading to performance degradation. Security Risks: **Potential vulnerabi
• Virtualization in Grid and CloudVirtualization in Grid and CloudDefinition Virtualization in grid and cloud computing refers to the use of virtualization technologies to create, manage, and optimize resources across distributed computing environments. In grid computing, virtualization enables the aggregation and efficient utilization of distributed resources. In cloud computing, it allows for the scalable and flexible provision of services over the internet. Key Concepts Grid Computing*: A distributed computing model that utilizes a network of loosely cou
• Virtualization and Cloud SecurityVirtualization and Cloud SecurityDefinition Virtualization and cloud security refer to the measures and technologies used to protect virtualized environments and cloud computing infrastructures from threats and vulnerabilities. This encompasses securing virtual machines (VMs), hypervisors, virtual networks, and data within cloud environments. Key Concepts Virtualization Security**: Techniques and practices to secure virtual machines, hypervisors, and the virtualized environment. Cloud Security**: Measures to protect data, ap
• Anatomy of Cloud InfrastructureAnatomy of Cloud InfrastructureDefinition The anatomy of cloud infrastructure refers to the foundational components and architecture that enable the delivery of cloud computing services. It includes the physical hardware, virtualization technologies, networking, storage, and management tools required to support scalable, flexible, and efficient cloud environments. Key Concepts Data Centers**: Facilities housing the physical servers and networking equipment that form the backbone of cloud infrastructure. Virtualization**: T
• Virtual InfrastructuresVirtual InfrastructuresDefinition Virtual infrastructure refers to the virtualized environment that includes virtual machines (VMs), virtual networks, virtual storage, and the management tools that support them. It abstracts and pools physical resources, enabling the creation of flexible, scalable, and efficient IT environments. Key Concepts Virtual Machines (VMs)**: Emulated computer systems that run an operating system and applications. Hypervisors**: Software that creates and manages VMs by providing a virtual o
• CPU, Network, and Storage VirtualizationCPU, Network, and Storage VirtualizationDefinition CPU, network, and storage virtualization refer to the technologies and processes used to abstract and pool physical computing resources, enabling their flexible and efficient use within virtualized environments. These types of virtualization are essential for creating scalable, flexible, and efficient cloud infrastructure. Key Concepts CPU Virtualization**: Abstracting the physical CPU to create multiple virtual CPUs (vCPUs) that can be allocated to virtual machines (VMs). Network

Questions

• Differentiate between grid computing and cloud computing? ✅ 2024-05-24
• Define virtualizations? Explain the advantages and disadvantages of Virtualization?
• Describe virtual clustering in cloud computing?
• Explain the importance of hypervisor in cloud computing? Compare Type 1 and Type 2 hypervisor?
• What is virtualisation? Explain the types of Virtualisation.

Additional Resources

• Books:
  • "Mastering VMware vSphere 6.7" by Nick Marshall, Scott Lowe
  • "Virtualization Essentials" by Matthew Portnoy
• Research Papers:
  • “Virtualization: Concepts and Technologies” by Masood et al.
  • “A Survey on Virtualization Techniques and Challenges in Cloud Computing” by Sharma et al.
• Online Courses:
  • Udacity: "Introduction to Virtualization"
• Blogs and Articles:
  • VMware Blog: Virtualization
• Videos:
  • YouTube: "Introduction to Virtualization" by VMware
  • YouTube: "Virtualization Full Course" by Simplilearn

Summary

• Definition of Virtualization: The process of creating virtual versions of physical resources such as servers, storage, and networks.
• Adopting Virtualization: Offers benefits like improved resource utilization, scalability, and isolation.
• Types of Virtualization: Server, storage, network, desktop, and application virtualization.
• Virtualization Architecture and Software: Hypervisors and virtualization management tools.
• Virtual Clustering: Combines multiple virtual machines into a cluster to work together as a single system.
• Virtualization Application: Used in data centers, cloud services, and for disaster recovery.
• Pitfalls of Virtualization: Includes performance overhead, security vulnerabilities, and complexity in management.
• Virtualization in Grid and Cloud: Enhances resource sharing and scalability.
• Virtualization and Cloud Security: Addressing security concerns specific to virtualized environments.
• Anatomy of Cloud Infrastructure: Understanding the layers and components that make up a cloud infrastructure.
• Virtual Infrastructures: Creating and managing virtualized environments.
• CPU, Network, and Storage Virtualization: Techniques to virtualize processing power, network resources, and storage.