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About the Presentations

About the Presentations. The presentations cover the objectives found in the opening of each chapter. All chapter objectives are listed in the beginning of each presentation. You may customize the presentations to fit your class needs.

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About the Presentations

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  1. About the Presentations • The presentations cover the objectives found in the opening of each chapter. • All chapter objectives are listed in the beginning of each presentation. • You may customize the presentations to fit your class needs. • Some figures from the chapters are included. A complete set of images from the book can be found on the Instructor Resources disc.

  2. Hands-On Virtual Computing Chapter 1 Introduction to Virtual Computing

  3. Objectives • Describe how virtual machines work and identify the categories of virtualization software • Give an overview of features in virtualization software • Summarize features of virtualization products from Microsoft and VMware Hands-On Virtual Computing

  4. Overview of Virtual Machines and Virtualization Software • Virtual machine • Can run its own OS as though it were running on a dedicated computer • Supports multiple OSs on a single computer • Virtualization software includes many features for managing computer environments Hands-On Virtual Computing

  5. Hands-On Virtual Computing

  6. Overview of Virtual Machines and Virtualization Software (continued) • Virtualization software • Works by emulating a separate hardware environment in an existing OS environment • Runs within OS of a physical computer (host computer) to create emulated computer environments called virtual machines • Guest system • When an OS is installed on a virtual machine Hands-On Virtual Computing

  7. Hands-On Virtual Computing

  8. How Virtualization Software Works with Virtual Machines • Virtualization software • Creates a separate environment for each virtual machine • Configuration file • Contains settings for virtual hardware • Virtual disk file • Contains a boot loader along with OS files and user data Hands-On Virtual Computing

  9. Licensing Requirements • From a licensing perspective • Installing an OS or application on a virtual machine is the same as installing the product on a physical computer • Running multiple copies of the same virtual machine • Might violate the license agreement for software installed on the virtual system Hands-On Virtual Computing

  10. Categories of Virtualization Products • Workstation virtualization • Benefits of using virtual machines with workstation environments • Running user desktop environments • Running virtual appliances • Software development • Help desk support • Classroom training Hands-On Virtual Computing

  11. Hands-On Virtual Computing

  12. Categories of Virtualization Products (continued) • Server virtualization • Products emulate a physical computer’s hardware • Major benefits of virtual servers • Reduced hardware costs, server clustering, and improved disaster recovery • Ability to create specialized servers to run different services • Server sprawl • Increases costs of computer hardware and maintenance and increases power consumption Hands-On Virtual Computing

  13. Hands-On Virtual Computing

  14. Hands-On Virtual Computing

  15. Hands-On Virtual Computing

  16. Hands-On Virtual Computing

  17. Categories of Virtualization Products (continued) • Hardware virtualization • Helps solve performance issues by performing part of the virtualization process inside the processor chip • Intel and AMD now have built-in support for virtualization in their processors • VMware Server and Hyper-V use hardware virtualization to improve performance Hands-On Virtual Computing

  18. Categories of Virtualization Products (continued) • Activity 1-1: Checking for Hardware Virtualization Support • Time Required: 10 minutes • Objective: Determine whether your computer’s CPU supports hardware virtualization Hands-On Virtual Computing

  19. Categories of Virtualization Products (continued) • Application virtualization • Allows each application to have its own Registry and file system • Virtual applications leave no footprint in the host computer’s Registry or file system • Products include the following: • VMware Thinapp • Softricity SoftGrid Desktop • Altiris Software Virtualization Solution (SVS) Hands-On Virtual Computing

  20. Exploring Virtualization Software Features and Use • Administrative and user consoles • User consoles • Provide a window to the desktop of the OS running on the virtual machine • Administrative console • Provides an interface for creating, configuring, and managing virtual machine environments • Advantage of Web-based consoles • They make it easier to manage multiple virtual machines across a network without additional software Hands-On Virtual Computing

  21. Hands-On Virtual Computing

  22. Virtual Machine Hardware Configuration • Processor and motherboard chipset • Virtualization software provides emulated motherboard and chipset that are compatible with guest OS • Memory settings • Virtual machines use physical memory (RAM) from host computer for each virtual environment that is currently running • To improve virtual machine performance • Add RAM to the host computer Hands-On Virtual Computing

  23. Hands-On Virtual Computing

  24. Virtual Machine Hardware Configuration (continued) • COM and LPT ports • Administrative console can be used to configure a virtual machine to use standard COM and LPT ports • USB ports • USB has become the standard interface for many peripheral devices • CD/DVD devices on a virtual machine • Virtual machine can be configured to have virtual CD/DVD devices that can be linked to the host computer’s physical CD/DVD-ROM drive Hands-On Virtual Computing

  25. Hands-On Virtual Computing

  26. Virtual Machine Hardware Configuration (continued) • Floppy disk support • Only one virtual machine can be linked to the host computer’s floppy drive at a time • With virtualization software • You can link the virtual machine’s floppy drive to a physical floppy drive or redirect it to a floppy image file Hands-On Virtual Computing

  27. Virtual Machine Hardware Configuration (continued) • Disk support features • With virtualization software, a virtual machine can use a specially formatted file (virtual disk) on the host computer as though it were an entire drive • When you create a virtual machine, you specify: • Type of virtual disk • Amount of disk space (fixed or dynamic) to reserve for it on the host computer Hands-On Virtual Computing

  28. Saving the Virtual Machine State • Important feature in virtualization software • Being able to save a virtual machine’s current settings and disk contents • Nonpersistent disks • Changes made to a virtual machine are used only in the current session • Snapshots • Allow you to return a virtual machine to a specific point if you have problems Hands-On Virtual Computing

  29. Hands-On Virtual Computing

  30. Parenting and Cloning • Virtual machine parenting • Enables you to have a master (parent) copy of a virtual machine that can be distributed to other users • Is closely related to snapshots and undo disks • In VMware • Virtual machine created from the parent is called a clone Hands-On Virtual Computing

  31. Hands-On Virtual Computing

  32. Network Support • With virtualization software • Virtual machine can have one to four simulated network adapters (NICs) • Virtual network adapter • Can be configured in a number of ways, including local, bridged, or shared (NAT) • When a virtual machine is in local mode (called “host-only mode” in VMware) • Its emulated NIC is plugged into a virtual switch Hands-On Virtual Computing

  33. Network Support (continued) • Bridged mode • Often discouraged in testing environments • Shared (NAT) mode • Allows access to outside networks yet isolates the virtual machine, preventing it from sending and receiving packets across the physical network Hands-On Virtual Computing

  34. Hands-On Virtual Computing

  35. Additional Options for Virtual Machines • Virtualization software • Often has options for installing additional tools on a virtual machine • Microsoft and VMware • Include tools for both Windows and Linux systems Hands-On Virtual Computing

  36. Hands-On Virtual Computing

  37. VMware Teams • Enable you to link virtual machines into a group • Communicate within a private network called a LAN segment • LAN segments • Invisible to the physical network • Use a proxy server or NAT router to bridge team members to the network Hands-On Virtual Computing

  38. Comparing and Downloading Virtualization Products • Major requirements for running virtualization software • Having a lot of RAM and disk space on the host computer • At least 1 to 2 GB for each virtual machine Hands-On Virtual Computing

  39. Hands-On Virtual Computing

  40. VMware Workstation 6.5 • Features include: • Built-in support for most guest OSs • Snapshot Manager • Being able to capture screens from virtual machines • Unity view • Teams of virtual machines connected across a LAN • Capability to create a virtual machine from a physical computer • Ability to map drive letters from the host computer to a virtual hard disk Hands-On Virtual Computing

  41. VMware Workstation 6.5 (continued) • Activity 1-2: Downloading VMware Workstation 6.5 • Time Required: 15 minutes • Objective: Download VMware Workstation 6.5 Hands-On Virtual Computing

  42. VMware Server 2.0 • Advantages • Reduced overhead to improve server performance • Free downloadable product and serial number • Capability to run and manage virtual servers from a remote location • Web-based user and administrative consoles Hands-On Virtual Computing

  43. VMware Player • Free, but has more limited configuration options than VMware Workstation or VMware Server • Often used for running virtual appliances Hands-On Virtual Computing

  44. Microsoft Virtual PC 2007 • Microsoft Virtual PC 2004 and 2007 • Similar products from an operational standpoint, but Virtual PC 2007 offers improved performance and reliability • Virtual PC 2007 • Contains many important features and is free and easy to us Hands-On Virtual Computing

  45. Microsoft Virtual PC 2007 (continued) • Activity 1-4: Downloading Virtual PC 2007 • Time Required: 15 minutes • Objective: Download Virtual PC 2007 Hands-On Virtual Computing

  46. Microsoft Virtual Server 2005 • Microsoft’s server virtualization software product before Hyper-V • Available as a free download • Runs as a service on the host computer instead of as a Windows application • Uses a Web-based administrative console Hands-On Virtual Computing

  47. Microsoft Virtual Server 2005 (continued) • Activity 1-5: Downloading Virtual Server 2005 • Time Required: 15 minutes • Objective: Download Virtual Server 2005 Hands-On Virtual Computing

  48. Microsoft Hyper-V • Available at no additional cost with all 64-bit versions of Windows Server 2008 • Runs as a service that can be managed through standard MMCs for both user and administrative consoles Hands-On Virtual Computing

  49. Hands-On Virtual Computing

  50. Acquiring Windows Server 2008 • Free trial version • Available from the Microsoft Web site • Runs for 60 days before requiring activation • Microsoft • Documents a method for pushing the activation time beyond 60 days Hands-On Virtual Computing

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