Browse Definitions :

Virtualization

Terms related to virtualization, including definitions about virtualization technologies and words and phrases about server virtualization, desktop virtualization and storage virtualization.

OVI - VIR

  • oVirt - OVirt is an open source data center virtualization platform developed and promoted by Red Hat.
  • OVSDB (Open vSwitch Database Management Protocol) - The Open vSwitch Database Management Protocol (OVSDB) is an OpenFlow configuration protocol that is designed to manage Open vSwitch implementations.
  • Parallel Virtual Machine (PVM) - Parallel Virtual Machine (PVM) is a program that enables distributed computing among networked computers on different platforms, so that they can perform as a single, large unit for computer-intensive applications.
  • Parallels - Parallels is an application and desktop virtualization software vendor that offers management and delivery platforms for Apple macOS and Microsoft Windows desktop deployments.
  • Parallels Desktop for Mac - Parallels Desktop for Mac is desktop virtualization software that can replicate a native user experience for guest applications and operating systems on Apple Mac computers.
  • paravirtualization - Paravirtualization (PV) is an enhancement of virtualization technology in which a guest operating system (guest OS) is modified prior to installation inside a virtual machine in order to allow all guest OS within the system to share resources and successfully collaborate, rather than attempt to emulate an entire hardware environment.
  • parent partition - A parent partition is a logical hard drive division in the Microsoft Hyper-V environment that's responsible for running the hypervisor layer and creating and managing child partitions.
  • PCI-SIG I/O Virtualization - PCI-SIG I/O Virtualization is a PCI Special Interest Group that is developing specifications for sharing PCI Express (PCIe)-based devices.
  • PCoIP (PC over IP) - PC over IP (PCoIP) is a remote display protocol that Teradici developed for delivering remote desktops and applications to endpoints.
  • permanent virtual circuit (PVC) - A permanent virtual circuit (PVC) is a software-defined logical connection in a network such as a frame relay network.
  • persistent desktop - A persistent desktop is a virtual desktop that maintains user settings and data so that each time a user logs into their virtual desktop, all of their personalized settings, files and data appear.
  • personal VM (personal virtual machine or PVM) - A personal VM (personal virtual machine) is a virtual computing environment that is allocated to an end user for personal use.
  • physical address - A physical address is a binary number in the form of logical high and low states on an address bus that corresponds to a particular cell of primary storage (also called main memory), or to a particular register in a memory-mapped I/O (input/output) device.
  • physical block device (PBD) - In a Citrix XenServer, a physical block device (PBD) is a connector object that represents the interface between a physical host and an attached storage repository.
  • physical computer - A physical computer is a hardware-based device, such as a personal computer.
  • physical to virtual (P2V) - Physical to virtual (P2V) is a term that refers to the migration of an operating system (OS), application programs and data from a computer's main hard disk to a virtual machine.
  • PlateSpin - PlateSpin is a company that provides tools to help with server virtualization, including physical-to-virtual migrations and server workload management.
  • platform - A computer platform is an underlying computer system on which application programs can run, or, in general, any base of technologies on which other technologies or processes are built.
  • Platform as a Service (PaaS) - Platform as a service (PaaS) is a cloud computing model in which a third-party provider delivers hardware and software tools -- usually those needed for application development -- to users over the internet.
  • Plexxi - Plexxi is a Cambridge Massachusetts company that makes software-defined networking (SDN) software.
  • Policy and Charging Rules Function (PCRF) - Policy and Charging Rules Function (PCRF) is the part of the Evolved Packet Core (EPC) that supports service data flow detection, policy enforcement and flow-based charging.
  • PowerPC - PowerPC is a microprocessor architecture that was developed jointly by Apple, IBM, and Motorola.
  • private cloud (internal cloud or corporate cloud) - Private cloud is a type of cloud computing that delivers similar advantages to public cloud, including scalability and self-service, but through a proprietary architecture.
  • Profile-Driven Storage - Profile-Driven Storage is a feature in vSphere 5 that lets users to intelligently provision applications, mapping VMs to storage levels according to service levels, availability, performance needs or cost.
  • Project Chainsaw - Project Chainsaw is the code name for Nortel's enterprise virtual collaboration product, web.
  • published applications - Published applications are virtual software programs that function as if they were installed locally.
  • Purple Screen of Death (PSOD) - A Purple Screen of Death (PSOD) is a diagnostic screen with white type on a purple background that is displayed when the VMkernel of an ESX/ESXi host experiences a critical error and becomes inoperative, terminating its running virtual machines.
  • raw device mapping (RDM) - Raw device mapping (RDM) is an option in the VMware server virtualization environment that enables a storage LUN to be directly connected to a virtual machine from the SAN.
  • Red Hat Storage (RHS) - Red Hat Storage is a new distributed file system based on the Gluster file system.
  • Red Hat Virtualization (RHV) - Red Hat Virtualization (RHV) is an enterprise-class virtualization platform produced by Red Hat.
  • remote desktop - Remote desktop is a program or an operating system feature that allows a user to connect to a computer in another location, see that computer's desktop and interact with it as if it were local.
  • remote desktop connection broker - A remote desktop connection broker allows clients to access various types of server-hosted desktops and applications.
  • Remote Desktop Connection Manager (RDCMan) - Remote Desktop Connection Manager (RDCMan) is a tool for managing multiple remote desktop sessions.
  • Remote Desktop Services (RDS) - Remote Desktop Services (RDS) is an umbrella term for several specific features of Microsoft Windows Server that allow users to remotely access graphical desktops and Windows applications.
  • RemoteFX - RemoteFX is a set of protocols for Microsoft's Remote Desktop Protocol (RDP) that are used to remotely deliver Windows virtual desktops over a local area network (LAN).
  • RHCVA (Red Hat Certified Virtualization Administrator) - The Red Hat Certified Virtualization Administrator (RHCVA) is a certification exam from Red Hat, Inc.
  • ROADM (reconfigurable optical add-drop multiplexer) - An ROADM (reconfigurable optical add-drop multiplexer) is a device that can add, block, pass or redirect modulated infrared (IR) and visible light beams of various wavelengths in a fiber optic network.
  • root partition - A root partition is the isolated area in a Microsoft Hyper-V environment where the hypervisor runs.
  • saved state - Saved state, in a virtualization context, is a way to store the current state of a virtual machine so that is possible to return to that state quickly when desired.
  • SDDC (software-defined data center) - An SDDC (software-defined data center) is a data storage facility in which networking, storage, CPU and security are virtualized and delivered as a service.
  • SDN application (software-defined networking application) - An SDN application is a software program designed to perform a task in a software-defined networking (SDN) environment.
  • Second Level Address Translation (SLAT) - Second Level Address Translation (SLAT) is a technology designed to reduce the overhead in a hypervisor CPU while easing the management of a hypervisor's memory and is often found with Hyper-V.
  • second-level address translation (SLAT) - Second-level address translation (SLAT) is a hardware virtualization technology that reduces hypervisor overhead.
  • server virtualization - Server virtualization is the masking of server resources, including the number and identity of individual physical servers, processors, and operating systems, from server users.
  • service virtualization - Service virtualization is the process of creating replicas of systems that new applications depend on to test how well the application and systems integrate.
  • shared nothing live migration - Shared nothing live migration is a term used to describe the process of moving a virtual machine (VM) from one physical host to another, without the need for clustering or a common shared storage location.
  • Single Root I/O Virtualization (SR-IOV) - Single Root I/O Virtualization (SR-IOV) is a peripheral component interconnect (PCI) Special Interest Group specification for sharing PCIe devices within a single computer.
  • smart paging - Smart paging is an advanced version of memory paging in Windows Server 2012 Hyper-V, where a virtual machine is capable of temporarily using hard disk space to supplement shortages of solid-state memory.
  • Software as a Service (SaaS) - Software as a service (SaaS) is a software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet.
  • software-defined storage (SDS) - Software-defined storage (SDS) is a computer program that manages data storage resources and functionality and has no dependencies on the underlying physical storage hardware.
  • SPARC (Scalable Processor Architecture)  - SPARC (Scalable Processor Architecture) is a 32- and 64-bit microprocessor architecture from Sun Microsystems that is based on reduced instruction set computing (RISC).
  • SPI model - SPI is an acronym for the most common cloud computing service models, software as a service, platform as a service and infrastructure as a service.
  • SplitRX Mode - SplitRX Mode is a VMware vSphere feature that can improve network performance for some multicast workloads.
  • Storage Distributed Resource Scheduler (DRS) - VMware DRS (Distributed Resource Scheduler) is a load balancing utility that assigns and moves computing workloads to available hardware resources in a virtualized environment.
  • storage virtualization - Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage device -- or pool of available storage capacity -- that is managed from a central console.
  • Storage vMotion - Storage vMotion is a component of VMware vSphere that allows the live migration of a running virtual machine's (VM) file system from one storage system to another, with no downtime for the VM or service disruption for end users.
  • streaming application - A streaming application is a program that has its necessary components downloaded as needed instead of being installed ahead of time on a computer.
  • stretched cluster - A stretched cluster is a deployment model in which two or more virtualization host servers are part of the same logical cluster but located in separate geographical locations.
  • SVVP (server virtualization validation program) - SVVP (server virtualization validation program) is a policy that allows administrators running running Windows Server on certified virtualization technologies other than Hyper-V and Microsoft Virtual Server to receive technical support for Windows Server from Microsoft.
  • switched virtual circuit (SVC) - In a network, a switched virtual circuit (SVC) is a temporary virtual circuit that is established and maintained only for the duration of a data transfer session.
  • syslog - Syslog is an IETF RFC 5424 standard protocol for computer logging and collection that is popular in Unix-like systems including servers, networking equipment and IoT devices.
  • SysTrack Desktop Assessment for VMware - SysTrack Desktop Assessment for VMware is a free cloud-based assessment service, developed in conjunction with Lakeside Software, that provides metrics and information about an environment and as well as how to best deploy VMware Horizon.
  • telepresence room - A telepresence room is a conference space dedicated to high-end videoconferencing.
  • thick provision eager zeroed - Thick provision eager zeroed is a provisioning format for a virtual machine (VM) disk that creates a virtual disk in a default thick format.
  • thick provision lazy zeroed - Thick provision lazy zeroed is a provisioning format for a virtual machine (VM) disk that creates a virtual disk in a default thick format.
  • thick provisioning - Thick provisioning pre-allocates storage capacity on a disk rather than on an as-needed basis.
  • thin hypervisor - A thin hypervisor is a stripped down hypervisor that allows multiple operating systems to run on one host.
  • ThinApp AppLink - VMware ThinApp AppLink is a packaging technology that makes one virtualized application dependent on another, so they can work together in one sandbox.
  • translation lookaside buffer (TLB) - A translation lookaside buffer (TLB) is a memory cache that stores recent translations of virtual memory to physical addresses for faster retrieval.
  • transparent page sharing - Transparent page sharing (TPS) is a memory management technology in virtualization.
  • Trema - Trema is an open source framework for developing OpenFlow controllers for software-defined networking in the Ruby and C programming languages.
  • Type 2 hypervisor (hosted hypervisor) - A Type 2 hypervisor, also known as a hosted hypervisor, is a virtual machine manager that installs on top of a host's operating system (OS).
  • unified computing system (UCS) - A unified computing system (UCS) is is a converged data center architecture that integrates computing, networking and storage resources to increase efficiency and enable centralized management.
  • unikernel - A unikernel is a library-based operating system that only includes functionalities required by the specific application that runs on it.
  • United Kingdom Climate Change Act - The United Kingdom Climate Change Act is the world's first legally binding environmental sustainability framework.
  • USB redirection (Universal Serial Bus redirection) - USB redirection lets end users plug peripheral devices into local USB ports and access them from virtual desktops.
  • user environment virtualization (UE virtualization) - User environment virtualization is the abstraction of personalized computer settings from their operating system and applications.
  • user installed application (UIA) - User installed applications (UIA) are programs that are installed on a computer by an end user, instead of by a corporate IT department.
  • VCAP (VMware Certified Advanced Professional) - VMware Certified Advanced Professional (VCAP) is VMware's third highest certification level out of four levels.
  • VCB proxy (VMware Consolidated Backup proxy) - VCB proxy (VMware Consolidated Backup proxy) is the server that collects virtual machine (VM) backup data from VMware Consolidated Backup.
  • VCDX (VMware certified design expert) - VCDX (VMware certified design expert) is VMware's highest certification level.
  • VDA (Virtual Desktop Access) - Windows Virtual Desktop Access (VDA) is an authorization strategy that requires each device seeking access to a virtual desktop in a Microsoft Virtual Desktop Infrastructure (VDI) to be licensed.
  • VDI boot storm - A virtual desktop infrastructure (VDI boot storm is the degradation of service that occurs when a significant number of end users boot up within a very narrow time frame and overwhelm the network with data requests.
  • VHDX (Hyper-V virtual hard disk) - VHDX is a Hyper-V virtual hard disk (VHD) format found in Windows Server 2012.

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