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Two common full virtualization techniques are typically used: (a) binary translation and (b) hardware-assisted full virtualization. [1] Binary translation automatically modifies the software on-the-fly to replace instructions that "pierce the virtual machine" with a different, virtual machine safe sequence of instructions. [ 7 ]
Different virtualization techniques are used, based on the desired usage. Native execution is based on direct virtualization of the underlying raw hardware, thus it provides multiple "instances" of the same architecture a real machine is based on, capable of running complete operating systems.
OS-level virtualization is an operating system (OS) virtualization paradigm in which the kernel allows the existence of multiple isolated user space instances, including containers (LXC, Solaris Containers, AIX WPARs, HP-UX SRP Containers, Docker, Podman), zones (Solaris Containers), virtual private servers (), partitions, virtual environments (VEs), virtual kernels (DragonFly BSD), and jails ...
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.
Virtualization Overview Archived March 3, 2016, at the Wayback Machine from VMware; An introduction to Virtualization Archived May 4, 2020, at the Wayback Machine; Weblog post on the how virtualization can be used to implement Mandatory Access Control. The Effect of Virtualization on OS Interference [permanent dead link ] in PDF format. VM ...
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.
Data replication techniques are not limited to virtualization appliances and as such are not described here in detail. However most implementations will provide some or all of these replication services. When storage is virtualized, replication services must be implemented above the software or device that is performing the virtualization.
Comparison of platform virtualization software; Comparison of application virtual machines; In this list platform refers to emulation of an entire physical machine, application refers to the byte code and similar machines used by various programming languages.