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Virtualization technology and an application of building vm ware
 

Virtualization technology and an application of building vm ware

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    Virtualization technology and an application of building vm ware Virtualization technology and an application of building vm ware Presentation Transcript

    • Virtualization Technology and An Application of Building VmWare
      Mehmet Açıkgöz
    • What is virtualization ?
      Method which aims to use the resources effectively.
      Isolation of computing resources from users.
      2 types of virtual machines
      2
    • These virtual machines share the physical resource between each other.
      Each virtual machine has own operating system.
      Hardware sharing is set by an interface.
      System Virtual Machines
      3
    • VM which is designed to operate just one software.
      Runs on an OS as a module.
      Provides to execute only one process.
      The software which uses the resource provided by any VM can not step out to the virtual environment.This is the most important characteristic feature of VMs.
      Process Virtual Machine
      4
    •  Conceptof incorporating virtualization at a layer beloweven the OS
      Virtualization layer often called as a Hypervisor(Virtual Machine)
      Each of the individual virtual machines is completely and wholly segregated from each other.
      Hardware Virtualization
      5
    • The internal resources of each virtual machine are replicated withHardware Virtualization
      Eachvirtual machine is atomic and they request physical resources through the hypervisor layer.
      Cont’d
      6
    • Full emulation of complete hardware
      Supports different hardware components on a different hardware infrastructure
      Enableseach virtual machine to work with its own processor, RAM-everything physical computer contains.
      Hardware Emulation
      7
    • GuestOS operatesin virtual machines within the virtualization application whichruns on top of the host OS in the same way as any other application.
      Each hosted virtual machine must be the exact same OS as the host.
      OS Virtualization
      8
    • differs is that it does not simulate hardwareresources but instead offers a special Application Programming Interface (API) to hosted virtual machines
      Paravirtualization
      9
    • Application Virtualization
      Software virtualization, unlike the other types, does not deal with whole systems.
      Instead, itencapsulates applications into virtualizationenvironments forenhanced distribution and administration
      10
    • Allowsthe use of virtual machines to let multiple network subscribers maintain individualized desktops on a single, centrally located computer or server.
       
      Users may be geographically scattered, but all may be connected to the central machine by a LAN,WAN, or the public Internet.
      Desktop Virtualization
      11
    • VMware's desktop software runs on Windows,Linux and Mac OS X.
      It has ESX software series (bare-metal) for enterprises
      They run on hardware as a hypervisor
      Some products:Vmware Server,Vmware ESX,Vmware ESXi,Vmware ThinApp
      VmWare & Its Rivals
      12
    • An extensiveand open source machine emulator and virtualizer.
      As a virtualizer QEMU achieves near native(nonvirtualized)performanceby executing the guest code directly on the host CPU
      Qemu
      13
    • Supports virtualization when executing under the Xen hypervisor or using the KVM kernel module in Linux.
      When using KVM, QEMU can virtualize x86, server and embedded PowerPC
      Cont’d
      14
    • Windows Virtual PC
      Windows-hosted version as a free product
       It originally required hardware virtualization support 
      updatedto Microsoft Virtual PC which allows it to run on PCs without hardware support
      15
    • Cause problems with open source OS such as upgrading of kernel
      Correct permissions on Windows Vista
      Unidentified program requires access to the computer
      Problems
      16
    • S.W.O.T Analysis
      Strengths
      Weaknesses
      Adaptability
      Live migration
      Leader in the industry
      Cost
      Mere presence of Microsoft
      17
    • S.W.O.T Analysis
      Threats
      Opportunities
      Virtual Desktop Management
      Virtual Application Arena
      Security breaches
      New companies which emerge in virtualization arena
      18