Using Virtualization in the Classroom

1
Using Virtualization in the Classroom
2
Using Virtualization in the ClassroomSession
Objectives

• Define virtualization
• Compare major virtualization programs
• Define virtualization terminology
• Discuss virtualization benefits
• List requirements of virtualization
• Demonstrate the use of virtualization

3
What is Virtualization?

• Allows multiple operating systems to run on the
  same physical computer at the same time
• A software environment that emulates a computers
  hardware and BIOS
• Virtual machine software creates this environment

4
Virtual Machine Software

• In this presentation, I will discuss
• VMWare Workstation
• Microsoft Virtual PC
• Microsoft Hyper-V (briefly)
• Other products not discussed
• Parallels (Mac) and VMWare Fusion (Mac),
  VirtualBox (open source)

5
What Does Virtualization Look Like?
Running Windows 7 Beta in VMWare on a Vista Host
6
What Does Virtualization Look Like?
This page shows a Shockwave Flash movie in the
live presentation. Not included here.
7
Running Windows 2000 in Microsoft Virtual PC on a
Vista Host
8
Running Windows 2000 in Microsoft Virtual PC on a
Vista Host
This page shows a Shockwave Flash movie in the
live presentation. Not included here.
9
Virtualization Terminology

• Host machine or host computer
• The computer on which the virtual machine
  software is installed (Virtual PC or VMWare,
  e.g.)
• Virtual machine (VM) or Guest OS
• The operating system that runs in virtual machine
  software on the host computer
• Comprised primarily of a configuration file and
  one or more virtual hard drive files

10
Virtualization Terminology (contd)

• Virtual disk
• One or more files that reside on the host
  computer that make up the VMs hard disk
• Virtual network
• The network configuration used by the VM
• Options include bridged, host only, NAT and none
• VMs behave like just another computer on the
  network

11
Virtualization Terminology (contd)

• Snapshot
• A partial copy of a VM at a particular moment in
  time. Allows you to go back to the VM at that
  particular state. Some programs allow saving
  multiple snapshots.

12
Virtualization Benefits

• Teach multiple operating systems with a single
  host computer
• Students can own their VM while having minimal
  access to the host computer
• Multiple VMs can run simultaneously on one host,
  networked and all (for example, a client and a
  server or two servers)

13
Virtualization Benefits (contd)

• Easy maintenance and testing
• VM wont boot or got deleted or corrupted? Copy
  another one.
• Snapshots allow unlimited try this scenarios
  with a quick return to the system state before
  you tried it.

14
Virtualization Benefits (contd)

• Run multiple versions of software
• Teach Office 2007 while previewing Office 20xx by
  using two different VMs.
• For programming and database write an
  application in one version and easily test on
  another version

15
Virtualization Benefits (contd)

• Isolate your OS from the campus network and host
  computer
• For programming and networking, run services and
  write software which might normally interfere
  with the host computer or the campus network

16
Virtualization Requirements

• Supported host operating system (Windows XP Pro,
  Vista, Server 2003/2008, Linux)
• Sufficient RAM on your host computer to
  accommodate the host OS and the guest OSs you
  wish to run
• Sufficient CPU power
• Sufficient hard drive space to accommodate the
  stored VMs

17
Virtualization Recommendations

• Minimum 1 GB RAM, 2 GB recommended for Vista and
  Server 2008 virtual machines
• Minimum 3.0 GHz P4, recommended 2.4 GHz
  dual-core CPU
• Separate hard drive (80 GB) for the VMs

18
VMWare

• VMWare was the first serious virtualization
  software
• Around since mid-90s
• The leader in server and desktop virtualization

19
VMWare (contd)

• Free products
• VMWare Player runs existing virtual machines
  but cannot create a new VM
• VMWare Server can create and run VMs better
  suited for low-end server applications

20
VMWare (contd)

• VMWare Workstation
• Flagship desktop product
• Create and run VMs
• Import VMs (including physical to virtual)
• Has all of the bells and whistles including
  unlimited snapshots, screen capture to create
  movies, jpgs
• Costs 189 retail

21
VMWare (contd)

• VMWare Academic Alliance
• Free to join fill out an application online
• Unlimited VMWare Workstation licenses for
  classroom use

22
VMWare Demonstration
This page shows a Shockwave Flash movie in the
live presentation. Not included here.
23
VMWare VM on the Host Hard Drive
24
Microsoft Virtual PC

• Virtual PC purchased by Microsoft around 2005.
• A basic desktop virtualization program
• No bells and whistles compared to VMWare
• Works well but not as flexible as VMWare
• Current version is Virtual PC 2007
• Free to download

25
Microsoft Virtual PCDemonstration
This page shows a Shockwave Flash movie in the
live presentation. Not included here.
26
Windows Server 2008 Hyper-V

• Hyper-V is Microsofts newest virtualization
  product
• Meant to compete with VMWares server
  virtualization products
• Excellent performance and reliability
• Comes with Windows Server 2008
• Server 2008 may become my next desktop OS

27
Hyper-V Demonstration
This page shows a Shockwave Flash movie in the
live presentation. Not included here.
28
Networking with Virtual Machines

• Virtual Machine Networking
• Each VM has its own virtual network adapter (NIC)
• Multiple network adapters are possible
• Several modes for the virtual network
• Bridged
• NAT/Shared
• Local/host only
• None

29
Networking Modes

• Bridged networking
• The VM acts like any other computer on the
  network
• Each VM network adapter gets its own IP address
  and physical address
• VMs can communicate with other VMs and other
  physical computers on the network including the
  Internet
• Most flexible configuration

30
Networking Modes (contd)

• Network Address Translation (NAT)/Shared
  Networking
• VM shares IP address with host computer
• Host computer acts like router/firewall
• VM can access other computers on the network
  including the Internet
• Other computers cannot access the VM directly
• More secure configuration than bridged
• Wont work if the VM is to be a server

31
Networking Modes (contd)

• Local/Host only networking
• VMs can communicate with only other VMs (Virtual
  PC) or other VMs and the host PC (VMWare)
• No communication with other physical computers or
  the Internet
• Ideal for doing activities that might interfere
  with the classroom network

32
Networking Modes (contd)

• No network connection
• Most secure configuration
• Best when no interaction with other computers,
  including the host, is desired

33
VMWare/Virtual PC Comparison

• VMWare Workstation Pros
• Better Linux support
• USB device support
• Multi-CPU support
• VM Teams
• Snapshots
• Better guest OS documentation
• VMWare Workstation Cons
• 189 license without membership
• More features mean more complex user interface

34
VMWare/Virtual PC Comparison (contd)

• Virtual PC Pros
• Free to download no membership required
• Simple user interface
• Virtual PC Cons
• Skimpy documentation
• No USB device support
• Fewer advanced features

35
Web Links

• VMWare
• www.vmware.com
• Academic program http//www.vmware.com/partners/ac
  ademic
• Virtual PC
• http//www.microsoft.com/windows/products/winfamil
  y/virtualpc/
• Comparison VMWare/Virtual PC
• http//www.petri.co.il/virtual_vmware_virtualpc_co
  mpared.htm
• Comparison VMWare/Virtual PC/Parallels/VirtualBox
• http//www.wilderssecurity.com/archive/index.php/t
  -168825.html

36
The End

• Thanks for coming!