Term used by Citrix which is in fact just Citrix XenApp running on top of Remote Desktop Services Hosted-Shared Desktop (multi-user RDS) = SBC.Terminal Services= The old name for what now is called Microsoft Remote Desktop Services.Term used for Remote Desktop Services of Microsoft The reason to use Windows Server as a operating system for end users is Microsoft not allowing to use Windows client operating systems in multi-tenant infrastructures with shared hardware. Citrix XenDesktop is used to run these Windows Server vm’s. In most cases a Windows 7/8 look and feel is applied.
Each instance is used by a single end user. In this configuration virtual machines are running Windows Server as a guest operating system without Remote Desktop Services enabled. Server VDI Workers (VM/Server Isolation) = VDI.Pooled VM-based VDI= VDI in which the user environment is reset after the session has ended.Applications which are installed by the user remain available even when session has ended. Personal VM-based VDI= VDI where each user has its own, persistent environment stored on unique virtual disks.Hosted VDI Desktops (1-to-1 Windows 7/8)= VDI.Server-hosted virtual desktops (SVHD)= Same as VDI.Centralized Virtual desktops (CVDs)= Same as VDI.Hosted Virtual Desktops (HVD). Same as VDI but Gartner uses this to prevent copyright issues.Another reason is because different implementations are used in VDI like server and client operating systems. To prevent copyright issues some vendors decide to use a slightly different naming. One of the reasons is that VMware has legal rights on the name VDI. Citrix offers in XenDesktop a way to present a single application in a VDI session.( VM hosted apps).įor VDI many other terms used. VDI is in most scenarios used to present a full desktop to the enduser. Using VDI each user session runs on a seperate operating system running as a vitual machine hosted by a hypervisor. Citrix released competitor XenDesktop in 2009. This was the first VDI solution on the market which involved to the current VMware Horizon View. It introduced Virtual Desktop Manager 2.0 at January 24 2008. Virtual Desktop Infrastructure (VDI). VMware is inventor of the VDI-technology. Both Citrix and Microsoft solutions allow to present individual applications or full desktops. Currently this is called Remote Desktop Services. Microsoft acquired the code of Citrix and started it’s own product named Terminal Services. WinFrame evolved to the current Citrix XenApp. Each user session is able to run it’s own user environment and applications. It basically is able to host multiple user sessions on a single operating system. Also known as ‘presentation virtualization’ and ‘session virtualization’. Invented by Citrix when it launched WinFrame in 1995. There are two techniques to execute desktops in a datacenter and present it to end-users:
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