Virtualization

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Virtualization Intel Macs IT Architecture
Forum 7 November 2006 Mark H. Anbinder
mha1_at_cornell.edu
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A little History

• Cornells IBM mainframes offered virtualization
  decades ago, with logical partitions supporting
  separate OSes or just virtual machines for
  separate users on the same hardware.
• Early Mac virtualization would have provided
  multi-user support on a single Mac IIfx with
  multiple monitors and keyboards hooked up but
  suddenly, hardware prices plummeted.

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Early emulators for Macs

• Remember SoftPC, RealPC, and SoftWindows from FWB
  and Insignia? A software PC-in-a-window was slow.
• OrangeMicros Orange386 NuBus card offered better
  performance from hardware, a PC-on-a-card.
• Apple even sold Macs with built-in DOS emulator
  cards.

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Virtual PC offered virtual machine, not just
Windows

• Faster PowerPC processors meant reasonable, if
  not stellar, performance from a software
  emulator.
• Connectixs Virtual PC provided a seamless
  Windows experience and even came with Windows!
• Didnt want Windows? Use the Intel-based OS of
  your choice.
• Virtual PC for Windows let you run Windows or
  Linux in a Window on a PC! That caught
  Microsofts eye...

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Nothing up my sleeve...

• Intel Macs meant the possibility of Windows
  running natively. Apple and Dells Core Duo
  machines had almost identical configurations.
• First... the hack! An OnMac.net contest put
  thousands of dollars toward a working solution.
• Apples Boot Camp public beta made it easy
  partition, install, and run Windows or Mac OS X.
  Not both at the same time.

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Why use Boot Camp?

• Easy... its free.
• You need a standalone, licensed copy of Windows.
  (Not so free... but you might already have one.)
• Perfect when you need to use Mac OS sometimes and
  Windows sometimes, but not both at once.
• Optimum Windows performance no sharing the
  machine.
• Switching takes a few minutes.

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Why use Parallels Desktop?

• Mac OS and Windows at the same time. 80
  software, and you still need an OS.
• Its really Windows and youre not limited to
  XP. Need to run in Win2K? Test in Vista?
• Mac OS and Windows and Linux and OS2 and whatever
  else, all at the same time.
• Slight performance overhead.

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Why use CrossOver Mac?

• No Windows needed!
• Based on WINE open-source Windows emulator
  project. Uses X11.
• One program per window!
• 40 pre-order price.
• Some applications will just work, and some just
  wont.

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Careful, its still Windows...

• If youre running Windows via Boot Camp or
  Parallels, youre running Windows!
• Keep Windows patched and updated.
• Install, update, and use anti-virus software.
• Practice safe computing by using easily
  compromised software like IE and Outlook as
  little as possible, or not at all.
• Use shared networking in Parallels, if possible.
• Be paranoid.

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Whats next?

• Next version of Boot Camp?
• Better Parallels and CrossOver Mac?
• VMWare Fusion?

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Resources...

• OnMac.net
• www.macwindows.com
• www.apple.com/bootcamp/
• www.parallels.com
• crossover.codeweavers.com

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Questions?

• Look for this presentation and helpful links
  later this week at ata.cit.cornell.edu
• Have you voted yet?