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A Brief Intro to Virtualiztion

A Brief Intro to Virtualiztion. What is Virtualization?. An abstraction Usually performed via software Many different types Hardware Software Data Network Our focus will be hardware virtualization. Hardware Virtualization.

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A Brief Intro to Virtualiztion

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  1. A Brief Intro to Virtualiztion

  2. What is Virtualization? • An abstraction • Usually performed via software • Many different types • Hardware • Software • Data • Network • Our focus will be hardware virtualization

  3. Hardware Virtualization • Abstracts underlying physical hardware from operating systems and applications • Allows multiple guest operating systems to run in parallel • Physical resources are shared amongst all guest OS and virtualization software

  4. Virtualization

  5. Terminology • Host Machine • The physical hardware/server • Hypervisor • The virtualization software • Acts as the true ‘OS’ for the server • Virtual Machines • Instances of the virtualized OS • Sometimes called Guest OS

  6. Why Virtualize? • Low CPU and memory utilization • Overpowered and overpriced hardware • Datacenter sprawl • Power and HVAC • High administrative labor costs • OS Licensing

  7. Benefits • Fewer servers, with better system utilization • Easier redundancy and disaster recovery • Decreased downtime • Ability to leverage patch management • Greatly decreased build times • Excellent testbed • Sharing of pooled resources

  8. Migration • Converting a physical server to a VM often called P2V • New VM created from image of existing OS and applications • Turn off physical, start VM, done • Rapid datacenter consolidation

  9. Deployment • Create a new VM • Install OS • Install apps • Some products allow you to make templates • Click, click, deploy, done

  10. Products • For the Enterprise • VMware ESX/vSphere, Virtual Center • Microsoft HyperV • For the end user • VMware Player, Server • Virtualbox • Microsoft Virtual PC

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