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2. Virtualization - Wikipedia

   en.wikipedia.org/wiki/Virtualization

   Hardware virtualization (or platform virtualization) pools computing resources across one or more virtual machines. A virtual machine implements functionality of a (physical) computer with an operating system. The software or firmware that creates a virtual machine on the host hardware is called a hypervisor or virtual machine monitor. [2]

3. VMware VMFS - Wikipedia

   en.wikipedia.org/wiki/VMware_VMFS

   VMware VMFS (Virtual Machine File System) is VMware, Inc.'s clustered file system used by the company's flagship server virtualization suite, vSphere. It was developed to store virtual machine disk images, including snapshots. Multiple servers can read/write the same filesystem simultaneously while individual virtual machine files are locked.

4. Application virtualization - Wikipedia

   en.wikipedia.org/wiki/Application_virtualization

   Application virtualization is a software technology that encapsulates computer programs from the underlying operating system on which they are executed. A fully virtualized application is not installed in the traditional sense, [1] although it is still executed as if it were.

5. Hardware virtualization - Wikipedia

   en.wikipedia.org/wiki/Hardware_virtualization

   Hardware virtualization is the virtualization of computers as complete hardware platforms, certain logical abstractions of their componentry, or only the functionality required to run various operating systems. Virtualization emulates the hardware environment of its host architecture, allowing multiple OSes to run unmodified and in isolation.

6. x86 virtualization - Wikipedia

   en.wikipedia.org/wiki/X86_virtualization

   x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU.. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-assisted virtualization capabilities while attaining reasonable performance.

7. Input–output memory management unit - Wikipedia

   en.wikipedia.org/wiki/Input–output_memory...

   In virtualization, guest operating systems can use hardware that is not specifically made for virtualization. Higher performance hardware such as graphics cards use DMA to access memory directly; in a virtual environment all memory addresses are re-mapped by the virtual machine software, which causes DMA devices to fail.

8. I/O virtualization - Wikipedia

   en.wikipedia.org/wiki/I/O_virtualization

   In virtualization, input/output virtualization (I/O virtualization) is a methodology to simplify management, lower costs and improve performance of servers in enterprise environments. I/O virtualization environments are created by abstracting the upper layer protocols from the physical connections .

9. Migration (virtualization) - Wikipedia

   en.wikipedia.org/wiki/Migration_(virtualization)

   In the context of virtualization, where a guest simulation of an entire computer is actually merely a software virtual machine (VM) running on a host computer under a hypervisor, migration (also known as teleportation, [1] also known as live migration) is the process by which a running virtual machine is moved from one physical host to another, with little or no disruption in service.