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Open Virtualization Format (OVF) is an open standard for packaging and distributing virtual appliances or, more generally, software to be run in virtual machines.. The standard describes an "open, secure, portable, efficient and extensible format for the packaging and distribution of software to be run in virtual machines".
It may also be distributed as Open Virtual Appliance (OVA), the .ova file format is interchangeable with .ovf. The Distributed Management Task Force (DMTF) publishes the OVF specification documentation. [1] Most virtualization platforms, including those from VMware, Microsoft, Oracle, and Citrix, can install virtual appliances from an OVF file. [2]
^ Exceptional for lightweight, paravirtualized, single-user VM/CMS interactive shell: largest customers run several thousand users on even single prior models. For multiprogramming OSes like Linux on IBM Z and z/OS that make heavy use of native supervisor state instructions, performance will vary depending on nature of workload but is near native.
Open Virtualization Format (OVA) - As of v14.0 was the default VM format. It supports VirtualBox and most VMware products (e.g. Workstation, Player, Fusion and vSphere/ESX). Also includes open-vmtools (for VMware). VMDK - "VM" in Turnkey Linux download mirrors - As above, but packaged
The proprietary extension pack adds a USB 2.0 or USB 3.0 controller and, if VirtualBox acts as an RDP server, it can also use USB devices on the remote RDP client, as if they were connected to the host, although only if the client supports this VirtualBox-specific extension (Oracle provides clients for Solaris, Linux, and Sun Ray thin clients ...
This type of VM has become popular with the Java programming language, which is implemented using the Java virtual machine. Other examples include the Parrot virtual machine and the .NET Framework, which runs on a VM called the Common Language Runtime. All of them can serve as an abstraction layer for any computer language. [citation needed]
The OVA provided education, best practices and technical advice to help businesses understand and evaluate their virtualization options. The consortium complemented the existing open source communities managing the development of the KVM hypervisor and associated management capabilities, which are rapidly driving technology innovations for ...
This approach is described as full virtualization of the hardware, and can be implemented using a type 1 or type 2 hypervisor: a type 1 hypervisor runs directly on the hardware, and a type 2 hypervisor runs on another operating system, such as Linux or Windows. Each virtual machine can run any operating system supported by the underlying hardware.