Introduction to VMware Virtualization Module 2

Introduction to VMware Virtualization Installing VMware ESX and ESXi You Are Here vSphere Environment Operations Introduction to VMware Virtualization Access Control VMware ESX and ESXi Resource Monitoring VMware vCenter Server Data Protection Networking Scalability Storage High Availability Virtual Machines Patch Management Installing VMware ESX and ESXi VMware vSphere 4.1: Install, Configure, Manage – Revision A

Importance VMware vSphere™ is based on many components that a vSphere administrator should be familiar with. This module describes the basic concept of virtualization, the types of virtualization available from VMware®, and the virtual machine. This module then shows you the fundamental components of vSphere and how vSphere can be used in your datacenter. VMware vSphere 4.1: Install, Configure, Manage – Revision A

Module Objectives Explain the concept of virtualization Identify the benefits of using a virtual machine Describe the role of vSphere in the datacenter and the cloud Describe the role of a vSphere administrator VMware vSphere 4.1: Install, Configure, Manage – Revision A

What Is Virtualization? Virtualization is a technology that transforms hardware into software. Virtualization allows you to run multiple operating systems as virtual machines on a single computer. Each copy of an operating system is installed into a virtual machine. Virtualization is not: Simulation Emulation VMware vSphere 4.1: Install, Configure, Manage – Revision A

How Does Virtualization Work? A virtualization layer is installed. It uses either a hosted or a bare-metal hypervisor architecture. hosted or bare-metal architecture VMware vSphere 4.1: Install, Configure, Manage – Revision A

Host Operating System–Based Virtualization A host-based virtualization system requires an operating system (such as Windows or Linux) to be installed on the computer. VMware vSphere 4.1: Install, Configure, Manage – Revision A

Virtualization Using a Bare-Metal Hypervisor A bare-metal hypervisor system does not require an operating system. The hypervisor is the operating system. VMware vSphere 4.1: Install, Configure, Manage – Revision A

What Is a Virtual Machine? From the user’s perspective, a virtual machine is a software platform that, like a physical computer, runs an operating system and applications. From the hypervisor’s perspective, a virtual machine is a discrete set of files. Main files: Configuration file Virtual disk file NVRAM settings file Log file virtual machine VMware vSphere 4.1: Install, Configure, Manage – Revision A

Why Use Virtual Machines? Physical machine Virtual machine Difficult to move or copy Bound to a specific set of hardware components Often has a short life cycle Requires personal contact to upgrade hardware Easy to move and copy: Encapsulated into files Independent of physical hardware Easy to manage: Isolated from other virtual machines Insulated from hardware changes Provides the ability to support legacy applications Allows servers to be consolidated VMware vSphere 4.1: Install, Configure, Manage – Revision A

Using vSphere vSphere provides the foundation for any virtual datacenter – small, medium, or large: Management services: VMware vCenter™ Suite Application services: For availability, security, scalability Infrastructure services: VMware ESX™/ESXi vSphere also provides the major building blocks for VMware vCloud™: Infrastructure, platform, and software services on demand VMware vSphere 4.1: Install, Configure, Manage – Revision A

Administering Your vSphere Environment vSphere administrator Create a vSphere administration team and define roles and responsibilities for: Creating virtual components Monitoring the vSphere environment Troubleshooting vSphere problems Managing updates and changes Teamwork is the key to success. storage administrator network administrator VMware vSphere 4.1: Install, Configure, Manage – Revision A

Module Summary Explain the concept of virtualization Identify the benefits of using a virtual machine Describe the role vSphere in the datacenter and the cloud Describe the role of a vSphere administrator VMware vSphere 4.1: Install, Configure, Manage – Revision A

Key Points ESX/ESXi uses virtualization layers based on a bare-metal hypervisor architecture. vSphere provides a solid foundation for any virtual datacenter. Administering a vSphere environment requires teamwork and cooperation among all administrators in the IT organization. VMware vSphere 4.1: Install, Configure, Manage – Revision A