Types of virtual desktop infrastructure
By Jay McCall, Business Solutions magazine Virtualization is the foundation for your cloud services offering.
What are the primary types of virtualization services you sell?
Is DaaS the same as VDI? Server Based Computing (SBC) — SBC gives users the ability to run multiple desktop sessions on one server. Most commonly associated with Windows-based server technology, this method increases ROI and reduces TCO (total cost of ownership) through economies of scale by increasing the device-to-user ratio. For example, 1 server hosts 50-plus users instead of the traditional ratio of 1 PC to 1 user. Technologies such as Citrix XenApp or Microsoft Remote Desktop Service (RDS) can be used in SBC implementations. Hosted Virtual Desktops (HVD) — This virtualization setup gives you the ability to run a virtual PC (vPC) device within a host hypervisor or on a blade. It provides greater computing power for more complex apps that are not suitable for an SBC desktop (e.g. situations where you don’t want to break the client/server model). Provisioning technologies can enable one disk image to be used for multiple vPCs, saving on storage costs and minimizing updates. It also provides alternative solutions for remote access, high availability, and disaster recovery (DR) needs. Citrix XenDesktop and VMware View are two examples of virtualization software used for HVD implementations. One of the upsides with HVD is that it pushes the ratio of virtual PCs to hosts to 150:1, which creates a significant cost savings compared with the traditional client/server model. Application Virtualization — This is used to decouple an application from the client operating system into a package, which allows for incompatible applications to coexist on the same client endpoint. It removes the requirement to install each application on each client endpoint and enables delivery of a single package to multiple desktops or server operating systems. Citrix Streaming, Microsoft App-V, and VMware ThinApp are examples of applications used in application virtualization. Where does the cloud fit into your virtualization model? Virtual Desktop Infrastructure (VDI) is, simply put, desktop virtualization. Desktop (or client) virtualization is like server virtualization but for end-user machines. The end user’s desktop environment is separated by virtualization from the physical machine where it appears. Desktop virtualization is an instance of client-server computing. This is because the virtualized desktop is stored on a central server and not on the machine being virtualized.
Virtual desktop infrastructure (VDI) is defined as the hosting of desktop environments on a central server. In fact, VDI is a desktop virtualization technology wherein a desktop operating system (OS) – typically Microsoft Windows – runs and is managed in an on-premises or cloud data center. The virtual desktop image is delivered over a network to an endpoint device, which may be a traditional PC, thin client device or a mobile device. It is a form of desktop virtualization, as the specific desktop images run within virtual machines (VMs) and are delivered to end clients over a network. How to implement VDI and how to use it? A hypervisor segments physical servers into virtual machines that in turn host virtual desktops. Users can access these virtual desktops from any device or location, and all processing is done on the host server. Users connect to their desktop instances through their PCs or their thin-clients. There are three major products in the VDI market:
It’s time to point out what protocol each vendor uses to set up and manage the session between end users and the virtual machine: Citrix
VMware
Microsoft
Source: vmware.com citrix.com and negarehia.com VDI Basic Components
Source: purecloudsolutions.co.uk Why Use VDI?The following are some of the needs of many organizations in the process of doing their work and projects:
In the past, its high-performance requirements made it costly and challenging to deploy on legacy systems. VDI is a solution for these needs. VDI facilitates secure and convenient remote access that helps boost employee productivity. Source: tetherview.com Types of VDIVDI can be classified as:
Source: vmware.com Benefits of VDI
Source: searchvirtualdesktop.techtarget.com ——————————— Source: citrix.com negarehia.com purecloudsolutions.co.uk vmware.com tetherview.com
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