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The main advantage is that you don't have to buy two computers, and you don't have to stand up from one computer and walk to the other (or buy a KVM switch). The only disadvantages are that they are really slow, and not quite as stable.

Advantages

  • Increase the hardware utilization of your machines
  • Decrease capital and operating costs
  • High availability
  • You can run other programs in a VM that may not necessarily be in the same OS as the host machine (e.g. running Windows or Mac OS X VM on a Linux host machine, and vice versa)
  • Some VM solutions allow you to save machine states that will allow you to revert back to a previous state should an error occur
  • Generally VMs are somewhat isolated from the host machine in the case of infection by malware, the host will not be affected

Disadvantages

  • If the host is down, the VM will be inaccessible
  • Increased memory and processor usage as part of overhead introduced by the VM
  • With the statement of the VM being "isolated", it also depends on how you configure your machine. If your VM has stuff like shared clipboard/file folders or if there's a feature that allows hardware passthrough (available to a select amount of hardware) it may still expose your host machine to the same threats as if you will with a VM.
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Wiki User

8y ago
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Wiki User

14y ago

advantages:

  • quickly configurable
  • exchangable
  • of great use in cloud computing



disadvantages:
  • overhead
  • poor software support
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Wiki User

13y ago

Windows utilises unused hard drive space as RAM to speed up system performance. I don't know of any disadvantage of using virtual memory.

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Wiki User

10y ago

http://www.sysprobs.com/disadvantages-virtualization-opinion

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Q: What is advantage and disadvantage of VMware?
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